X303 Cam With Gt40 Heads


Automotive (289, E7) Cost per pair: $675 + shipping + core Material: Iron Combustion Chamber Size: Stock (289 = 54cc, early 302 = 59cc, E7 & 351W = 64 cc ) Hardware: Complete Rocker Mount Type: Pedestal or Screw-in stud Runner Volumes: Stock Valve Sizes: 1. Heads GT40 EFI carb. 0 cobra since it has the gt40 heads/intake already. im interested on the specs it has. Click the button below to add the 6. Street/Strip Performance. 6 rockers/75mm TB:. This "GT40-KR1" camshaft requires aftermarket tubular headers with free flowing mufflers & exhaust system. One day later, Alex had created our first Gt40 SBF spring kit, ready for testing. Remember building with 302 parts is going to yeild you 302 power. Their camshafts are designed for everything from mildly modified street rods to full-out drag racers. 1986 mustang: cam. 94" intake 1. Like it's already been said before, you can't compare iron heads to aluminum heads. They have the same valves and springs in them as the X head 1. 0L with a speed density EFI, will the GT40 heads make a difference in performance?. Upgrading Fox Body Mustangs to GT40 heads became a popular modification. 14 Ford SBF V8 289 Stage 4 512/512 Lift Cam Camshaft 302 MC2292. the 98-01 were the Gt40P heads. GT40/GT40P heads were a more free flowing cylinder head that outperformed the factory E7 heads that were found on most 5. 351w gt40 heads and ford e303 build help Im wanting to upgrade my 1996 f150 351w. Cobras were meant to be driven hard. Automotive (289, E7) Cost per pair: $675 + shipping + core Material: Iron Combustion Chamber Size: Stock (289 = 54cc, early 302 = 59cc, E7 & 351W = 64 cc ) Hardware: Complete Rocker Mount Type: Pedestal or Screw-in stud Runner Volumes: Stock Valve Sizes: 1. 30 on radials , y303 aluminum on my 351 lightning (really woke things up over 3k rpm), and Dart Sr,s on both the 306 race engine (525rwhp) and the 408 in ffr5020 580hp(flywheel). 00" Stroke Cast 3. For a forced induction combination, the Iron's do have a lower compression ratio, and in the case of more aggressive camshafts the Irons usually came with GT-40 valvetrain, good for about. Heavy converts and GT's will be slightly slower. need help with that. any ideas?? im looking for a tad more power down low than the e303 and a better idle but still lopey. Begin with a clean work space. These items will make the Coyote a simple drop in installation into the TSC GT40. Rich - 92 GT S-speed T FS TW heads, 8-303 cam, Cobra intake ported by T moss, Accufab 070 mm T a, 1 72 rris, 24 lb/hr injectors, 73 mm MAF, full exhaust, 3. Roller Cam B303 Hyd. 94 intakes and 1. Discussion Starter • #1 • Aug 28, 2009. Jump to Latest Follow 1 - 13 of 13 Posts. 94" intake 1. If you can't run 12. But if there's not much difference in performance il go for the gt40 n save some money. I want to buy some heads in the somewhat near future for my 94gt, and I was wondering the performance difference between the gt40heads and some trickflow heads while the car is naturally aspirated. 73, 15" Team III, firewall mod, trunk mod, trailer hitch. Easy to use parts catalog. I run 4:30 rear gear. GT40/GT40P heads were a more free flowing cylinder head that outperformed the factory E7 heads that were found on most 5. 8/351W) - GT-40 Heads - How Much torque and Hp would a set of GT-40 heads add to a 351w. Been looking for the GT40's everywhere, they are $300-400 on craiglist/ebay, I found a really nice pair of GT40P's in the junk yard out of a '97 mountaineer for $60 but have really been looking for the non P versions due to spark plug locations and header constraints with the P's. Application. hp (not that you stated same) some other alum. 0 Fox Body Mustangs. For stock cylinder head applications, the use of Ford Racing M-6513-A50 valve springs installed at 1. The Explorer/GT40 throttle body is 65MM, the intake ports are huge, and the valves are much lager than a stock 5. 7 ratio roller tip pedestal mount rockers instead of the 1. The GT-40 head/stock cam/Cobra intake is a excellant daily driver combo. 19 intake and 1. A/D351R engines use the M-6250-Z303 cam. I'm using 1. 542" lift with 1. i am looking at 1. You might want to consider a less aggressive cam grind, like Ford Performance Parts’ E303 or B303 cam. 820" are required. With Lotus 7 production waning, Colin Chapman was looking for a car to. For GT-40P's you'll need more duration than those choices offer but you won't need a whole lot of lift. the only downside to the P heads is that the spark plug is angled slightly different than regular gt40 or other heads but its not a huge deal. 10 geari culd definalty hit 12s,,,89rustang has a similar set up as urs with the eFI and ran low 13s with 3. To make these heads work with a performance cam, Slover's Porting Service milled off the original net lash bolt pads to install 38-inch screw-in studs (with a 716-inch bolt size in the head) and. David Aguilar. 5:1 guessing) the car- 4 speed manual weighs 2500lbs i want. I plan on. To identify your GT40/GT40 heads, look for a "GT" or "GT40P" stamp inside the heads or a three bar (GT40) or 4 bar (GT40P) stamped on the side of the head. Find many great new & used options and get the best deals for SVO Ford Motorsport Turbo Swirl M 6049 Y 303 Aluminum Heads 302 351 Mustang GT 40 at the best online prices at eBay! Free shipping for many products!. Buy Ford Performance M-6250-X303 at JEGS: Ford Performance X303 Camshaft Trans: 5-Speed. For GT40P heads, you will find 4 vertical bars on the front of the head and it will be cast with a “GTP” just below the #1 exhaust. It has a 406 small block chevy engine with a roller cam aluminum heads custom exhaust MSD ignition and a custom painted color changing paint job that looks great call him at 218-340-7336. Discussion Starter • #1 • Jun 3. Port your lower to match the heads, then go with what ever cam you want. I have a 91 mustang gt I changed the heads out to FR x303 changed the cam to E303, 1. 50" Stroke Cast. need help with that. Ford Mustang Model Specific Forums. Automotive (289, E7) Cost per pair: $675 + shipping + core Material: Iron Combustion Chamber Size: Stock (289 = 54cc, early 302 = 59cc, E7 & 351W = 64 cc ) Hardware: Complete Rocker Mount Type: Pedestal or Screw-in stud Runner Volumes: Stock Valve Sizes: 1. Don't know 1/4 mile, that's not the racing I do. These GT-40 style heads use AGSF-32C spark plugs Each GT-40X head is leak tested prior to assembly Head assembly consists of bare head M-6049-X302/X304 and GT-40 valve train kit M-6090-X302 featuring stainless steel valves. Google "ford head flow chart" and you'll see flow numbers of stock e7's, gt40's, p's and many aftermarket heads. The flows are similar but, where the P's have the advantage is in combustion efficency. A/D351R engines use the M-6250-Z303 cam. 300 for a custom cam isnt gonna happen with gt40's. I would think the Fairmont is lighter, and the carb intake setup will pull higher. They were not meant to be stored in a garage, babied, and sold decades later for a pretty penny. Then I'll have them done up like valve job and prob a port and polish. Intake is Edelbrock performer 289, carb is Edelbrock 600 CFM. I am very happy with the performance. Designed specifically for the popular GT40 cast iron cylinder head combinations. You will love this set up. 6 roller rockers, guide plates and hardened comp cam push rods, 2. Look around local junkyards, and hope you get to the Explorer before somebody who knows what to look for grabs the engine. def better cams than the e303, and dont worry about emissions if you have cats n ****, sean passed with a 347 stroker, trickflow stage 2 cam, and 30lb injectors, its all in how your cars running, and the gt40p's are more effecient at burning all the gas than the stock heads, so that helps too. I used mild ported GT40 Iron heads on a blown gtconvert with a stock cam and 3. Built with the following components: SCE Copper Head Gaskets, Melling high volume oil pump, Eagle crank, Comp Cams road/race cam, Clevite bearings, SRP flat top pistons, Eagle H-Beam rods, DSS stud girdle and windage tray, Original GT40 Aviad oil pan, Original GT40 crank, water pump, and alternator pulleys, Original GT40 alternator bracket and. 1991 roller block 306 CID, GT-40P heads (slight port work, exhaust mainly), With my pistons, I estimate the static compression ratio to be 9. net constantly for deals on parts. Upgrading Fox Body Mustangs to GT40 heads became a popular modification. 0 explorers through 1996, after that they switched to the gt40p heads. i can get some gt40p heads. 0 Mustang Aluminum Heads GT40 EFI OR carburetor at the best online prices at eBay! Free shipping for many products!. Anyone ever used a FRP X303 Cam? im building a standard bore 302 motor and im doing some modes to the E7 heads (porting, GT40 Valves, rockers,etc) and ive heard very few reviews on the X303 cam. It's the area inside the newly cut seat for GT40 valves. I run 4:30 rear gear. Since a lot of electronic things are required to work with the computer i was wondering what sort of special things i would have to do to make this all work. A GT40 head will have 3 vertical bars on the front of the head with a “GT” cast into the head just below the #1 exhaust. 00 for both 1987 mustang gt upper and lower intake and factory headers $75. As far as heads go, would you recommend gt40 heads or TFS TW heads? I'm pretty set on the TFS. the 98-01 were the Gt40P heads. I'd really recommend the 1996-1997. they dont charge for that. Unless those GT40 heads have better valvesprings and some porting any cam over. 6 roller rockers, you can do that with no ill effects from the standard output camshaft. F303 cam with GT40 heads. 7 ratio cobra rockers giving you more hp/tq than the cobra cam setup. 7:1 roller-tipped rocker arms on the heads. Exhaust is Hedman 88400 shorty with 2. 0 explorers through 1996, after that they switched to the gt40p heads. The $$ spent to port stock OEM heads, including a rebuild, likely does not even exceed the the flow capability of dead stock GT-40's, pointing out just how poor OEM heads really are. there not as bad as you think. Good springs, retainer and locks, and of course valve seals. For a street car, look for a cam that can perform from 1500-5500rpm. If you decide to switch over to aftermarket heads with larger valves (which is what the X303 cam is really designed for), you will definitely have clearance problems with the stock pistons. and steel heads would be better. 0L Fox-body Mustang. 030" bore fixture. We are installing the CORRECT headers for the GT40P heads. I always look for the 5. Ok So im getting heads off of a 95 mustang cobra, and from what im hearing there gp 40 heads. 0 481 hp @ 6600 rpm •Peak Torque-GT-40 447 lbs. The GT40 heads (Cobra mustang, SVT Lightning and some Explorers) have 3 "bars" cast into the front and back of each head The GT40P head has 4 bars Keith/Bumble. 0 Liter EFI V8 engine with aluminum heads, E303 camshaft and GT40 intake. All Ford Performance Parts camshafts are designed for more power; with either improved low-to-mid rpm torque, or mid-to-high rpm. Joined Jul 2, 2009 · 470 Posts. Application. SMALL BLOCK V-8 HYDRAULIC ROLLER TAPPET CAMSHAFTS Buy Now. By using the P's you can save money on the rest of the valve train, pedestal rockers and push rods. 0L V8 Mustangs with 1. 6 rockers/70mm TB: 355hp/380lbft (310rwhp/330rwtq T5, 270rwhp/290rwtq AODE) Holley 300-575 heads/Lunati 51027 cam/Holley Systemax II intake/1. The range was powered by a series of American-built Ford V8 engines modified for racing. Their camshafts are designed for everything from mildly modified street rods to full-out drag racers. 00" Stroke Cast 3. 8/351W) - Roller cam 351W with GT40P heads? - OK, change of plans. but easiest way for my to quickly identify regular vs P heads is the 90. e303 cam question. This Ford Racing cam is a great replacement choice for increasing your pony's torque and horsepower up to 6200 RPM, and it has a fair idle. PICK UP ONLY. The Ford Racing E303 Performance Camshaft is designed for use in the 1985-1995 5. It drives and sounds just like a stock mustang until you hit the loud pedal. however, u could get pistons with deeper valve reliefs if u wanted to run a larger cam. Jump to Latest Follow 1 - 13 of 13 Posts. Don't know 1/4 mile, that's not the racing I do. 1986 mustang: cam. 6 roller rockers FRPP 30lb injectors. 1 of 2 Go to page. this is with the stock HO cam too. Ford's famous Alphabet Cams (a. 7's right now but they have a 5/16 bolt what is the bolt size on the gt 40's. do i need to do anything before i put them on or will they even go on. In addition, the cam. In 1992 there came an optional 285 hp “Pro Boss” option. I think the X303 is the earlier model. For aftermarket cylinder heads the use of M-6513-BH are recommended. 8 rear end (3. 0L 4 Bar Cylinder Head Assembly Genuine OEM SET / Pair. Re: Aluminium GT40 \"Turbo Swirl\" Y-303 heads I bought a brand new pair of Y heads, with valves, springs, and fully assembled from Summit in 1995 for $1100 US. Heavy converts and GT's will be slightly slower. I'm not a big fan of the alphabet cams though. This helps compensate for the so-so exhaust-port flow. (Chassis GT 40 P/1077 was specially built as one of a series of ultra-lightweight ‘GULF’ specification GT40’s by Ford Advanced Vehicles. or should i save my money and get trickflow, afr, or dart heads. 0L 85-95 Mustang. im looking for good power up to about 6000rpms. Their camshafts are designed for everything from mildly modified street rods to full-out drag racers. 302 heads with the fat spark plugs are smaller. Find many great new & used options and get the best deals for Ford 289 302 351W 408 427 5. Without a cam, GT40 heads/intake, OE TB, pulleys, stock exhaust manifolds, MAC prochamber H, was 240 or so rwhp. Ford Racing M-6049-X306 Cylinder Head, GT-40, Aluminum, Assembled, 64cc Chamber, 178cc Intake Runner, Ford, 289, 302, 351W, Each $ 500 ea Hello, This is a set of GT40 Heads They have been completely reconditioned by my local machine shop and are ready to go. 00" Stroke Cast 3. 6 rockers/65mm TB: 340hp/370lbft (295rwhp/320rwtq T5, 260rwhp/285rwtq AODE) Edelbrock 60379 heads/E303 cam/Performer intake/1. The GT40 Mk 1 used a 4. I would think the Fairmont is lighter, and the carb intake setup will pull higher. The nominal 9. scat crank, h beam rods, probe forged flat tops with valve reliefs. Roller Cam Crane Hyd. 6 roller rockers, guide plates and hardened comp cam push rods, 2. Generally speaking this is a nice street head but as John mentioned, you need to determine which version it is. I want to put Roller Rockers but not sure what the difference would be using 1. 55s, ik my car is a blast to drive on the street so im happy with it. Advantages of using the Coyote engine instead of the older small block engine include :-Light weight design featuring all Aluminium block and heads. This cam provides a noticeable power improvement and lumpy idle while maintaining good driveability with a manual transmission. 0L motor, or a pair for a 99-04 4. Joined Jul 2, 2009 · 470 Posts. I've done a ton of research on this, and with a late model roller block motor with a small cam such as a tfs or e cam, gt40/gt40p heads, a good intake, and 1. 0L V8 Mustangs with 1. Rich - 92 GT S-speed T FS TW heads, 8-303 cam, Cobra intake ported by T moss, Accufab 070 mm T a, 1 72 rris, 24 lb/hr injectors, 73 mm MAF, full exhaust, 3. See Post #12 4 lines is the P heads therefore 3 lines are the plain gt40. Pick a cam grinder that knows Clevelands, like Bullet or Cam Research, and it will run like a scalded ape. Ford Performance X Cam This Ford Performance X303 hydraulic roller camshaft, also known as an X cam, is a great way to add horsepower to your 5. GT40P heads, cam, compression up by a point and a 4bbl, hang on to your hat. they are identified by the bars on the ends. There are two gt-40 heads. The springs will run out of gas at about 5600 RPM's. Automotive (289, E7) Cost per pair: $675 + shipping + core Material: Iron Combustion Chamber Size: Stock (289 = 54cc, early 302 = 59cc, E7 & 351W = 64 cc ) Hardware: Complete Rocker Mount Type: Pedestal or Screw-in stud Runner Volumes: Stock Valve Sizes: 1. gt40 heads have 57 or 58cc cumbustion chambers. 7 rockers, GT40 upper and lower, 70mm TB, 24lb injectores w/calibrated MAF, CAI, and shortie headers. 11-15-2003, 09:10 AM. It can be welded I just am not brave enough to try these heads anymore. The GT-40 heads continued within the Ford Explorer despite the Mustangs receiving modular engines. 7's right now but they have a 5/16 bolt what is the bolt size on the gt 40's. Browse photos, see all vehicle details and contact the seller. They have the same valves and springs in them as the X head 1. 97; Mutha Thumpr™, 291T HR-7: Camshaft Kit $1,122. but I do think that a 351 could use better heads, The gt40's are pretty much throw backs to the orginal 351 head back in the day no real performance piece but better than other late model heads. Letter Cams) have been around for decades and are often the go-to choice for Mustang owners looking for more performance from their 5. 050" tappet lift. Vehicle Specifics. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 7 Roller Rockers in a 306 with 14psi it has decent street manners and pulls hard past 6000 in a 92 mustang. • Steeda subframe connectors. Joined Jul 2, 2009 · 470 Posts. they are identified by the bars on the ends. Find many great new & used options and get the best deals for Ford 289 302 351W 408 427 5. Intake is Edelbrock performer 289, carb is Edelbrock 600 CFM. After talking to. I'm on a restricted budget, so I am building a solid 393 short block that can be upgraded later with better heads and camshaft.  Ford 289 & 302 Cylinder Heads Ford 351 Windsor Cylinder Heads Ford 351N & 352N Cylinder Heads Ford GT40 Cylinder Heads Ford Pinto Racing Heads Ford Windsor Jr. Easy to use parts catalog. Our heads, intakes and exhaust manifolds may look stock, but they are not! We have the right parts to make your Chevy Crate Motor come alive and win! Brzezinski Racing Products | N50W23001 Betker Drive, Suite A, Pewaukee, WI 53072 | 262-246-8577. It can be welded I just am not brave enough to try these heads anymore. com always recommends to double check PTV when installing a new set of heads or cam regardless. This head is suggested more for 351W engines, but can be used on the 289/302 using a head bolt adaptor kit. The GT-40 Iron heads do sport some enhancements beyond the P's. Shorty headers, a H-pipe and a 2-1/2" Cat-back exhaust system. If you have noticed Ford replace the regular cast iron GT-40 heads which is the 69-70 head design with the GT-40p's because they are better. One day later, Alex had created our first Gt40 SBF spring kit, ready for testing. 0 481 hp @ 6600 rpm •Peak Torque-GT-40 447 lbs. High Energy/Marine™, 268H: Cam & Lifters $196. I run the trick flow stage 1 with 1. 11-15-2003, 10:16 AM. FTI Custom Solid Roller Camshaft Ford 429-460 "RACE" $599. The 1993-95 Cobra GT-40 head is little more than a marine head with larger valves and ports. 0 V8 (Ford Racing X303 heads, E303 cam, GT40 intake). 7's) so decent flow at lower. 19 in 1/8 mile with 1. 1987 Ford Mustang Fox Body. I want to buy some heads in the somewhat near future for my 94gt, and I was wondering the performance difference between the gt40heads and some trickflow heads while the car is naturally aspirated. For stock cylinder head applications, the use of Ford Racing M-6513-A50 valve springs installed at 1. PICK UP ONLY. For use with aftermarket cylinder heads, Ford Racing M-6513-BH valve springs are recommended. Small Block Cylinder Heads and Valvetrain: Cylinder heads determine the personality of an engine as much as the camshaft and induction system do. Just for comparison that cam has more duration than the cam in my 428 and it shifts at 6500-6600 rpm. 0L V8 Mustangs with 1. These GT-40X heads feature a 64CC Combustion Chamber to greatly improve the airflow over the original GT-40 design allowing you to bolt on 65 more horsepower. hp (not that you stated same) some other alum. since i have a x303 cam what rockers should i use. 0 but ended up getting an Edelbrock Performer RPM retrofit instead. Techline 1-800-367-3788 Page 1 of 3 IS-1850-0305 Factory Ford shop manuals are available from Helm Publications, 1-800-782-4356. One needs repairs dropped valve $300. 54 exhaust), E303 hyd cam, around 9. i am looking at 1. gt40p head swap. There are a lot of variables that must be addressed to give a better estimate, but a good basic estimate is 20-40 HP at the crank. This head is suggested more for 351W engines, but can be used on the 289/302 using a head bolt adaptor kit. Rich - 92 GT S-speed T FS TW heads, 8-303 cam, Cobra intake ported by T moss, Accufab 070 mm T a, 1 72 rris, 24 lb/hr injectors, 73 mm MAF, full exhaust, 3. I would think the Fairmont is lighter, and the carb intake setup will pull higher. com always recommends to double check PTV when installing a new set of heads or cam regardless. 55s, ik my car is a blast to drive on the street so im happy with it. GT40's aren't even the best iron head, World Product iron heads are better. roller cam with 590 lift. There are 4 different types of GT40 head. The HO motor has the GT 40 heads, I don't know about the cam specs if they are any different from the 240 hp model. 500 a good way to figure horsepower n/a is to double the intake flow number's cfm and that's a ballpark of the hp level that the heads are capable of with n/a. def better cams than the e303, and dont worry about emissions if you have cats n ****, sean passed with a 347 stroker, trickflow stage 2 cam, and 30lb injectors, its all in how your cars running, and the gt40p's are more effecient at burning all the gas than the stock heads, so that helps too. gt40 heads (bought) AOD (found at local yard and isn't going anywhere soon) (waiting because of warranty use) edelbrock 1406 aka 650cfm electric choke, 4 bbl carb (running when last used for $100) Ford hydraulic roller cam. com always recommends to double check PTV when installing a new set of heads or cam regardless. GT40 vs 351 heads. – approximately 25 lbs. 97; Mutha Thumpr™, 291T HR-7: Camshaft Kit $1,122. The Ford Racing X303 Performance Camshaft is designed for use in the 1985-1995 5. Im new to the forum and to owning a CC. Heads Ford Crate heads Big Block Ford. The cam is part number: M-6250-E303. You only read the beginning!! Go back and read the rest where he quits farting around with the E7's and moves on to better heads (GT40P). Yeah - what they said. 71 exhaust valves let 'em breath. 7 Roller Rockers in a 306 with 14psi it has decent street manners and pulls hard past 6000 in a 92 mustang. X2 on the E303 cam/GT40 head/Weiand Stealth intake combo for respectable power, nice sound and good drivability on the cheap. 00 or best offer Pro comp aluminum sbf heads with 1. The GT-40 Iron heads do sport some enhancements beyond the P’s. My cam is a. If you do decide to just swap the cam stay with a wide lobe separation. And boy, does it sing. David Aguilar. 0L V8 Mustangs with 1. 7's) so decent flow at lower. scat crank, h beam rods, probe forged flat tops with valve reliefs. My shortblock has high compression pistons (10. Small Block V8 (221, 260, 289, 5. Specifications:. 4 Gasket 85-95 Bolts 22RE Head Set Fits Fits 22RE Set Head Cylinder Gasket 85-95 2. Note that intakes and a new cam would be put on fairly soon after the head swap. This is the 5. It filled my cylinder up with antifreeze. You might want to consider a less aggressive cam grind, like Ford Performance Parts’ E303 or B303 cam. My son has this in his Fox mustang and it really runs good below 5500 rpm. Just think though of how much faster either engine would be with GT-40's or, better yet, just about any alum. GT40 vs 351 heads. In 1996, Ford used GT40 heads on Explorers, Mountaineers and Lightnings, until the GT40s were replaced in mid-production 1997 with upgraded GT40P heads. This Ford Racing cam is a great replacement choice for increasing your pony's torque and horsepower up to 6200 RPM, and it has a fair idle. Fox Body cams not only add performance, they give your Mustang an aggressive lope exhaust tone. SMALL BLOCK V-8 HYDRAULIC ROLLER TAPPET CAMSHAFTS Buy Now. Build A 505HP Ford 351 Windsor. My thinking is if I spend $200 on heads, $800 on porting and other parts, Ill still be ahead by $400 leaving room for a retrofit roller cam and lifters. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. 050 with 110 LC. 540 kit for GT40P heads. Find Ford Performance Parts Camshafts M-6250-X303 and get Free Shipping on Orders Over $99 at Summit Racing! Ford Performance Parts guys live, eat, and sleep Ford. 1993 Mustang GT 40 over stock bottom end Ford motorsport X-303 cam Trickflow twisted wedge 170 heads Comp cams Ultra gold series 1. 0L V8 Mustangs with 1. • 4 wheel disc brakes (SSBC conversion). The nominal 9. 54-inch), high-flow ports, high-rate capacity fuel pump, and injectors, revised combustion chambers, a redesigned air filter for improved airflow and a true dual exhaust system. you can see the 3 bars on the heads in his pic says its a GT40. This cam provides a noticeable power improvement and lumpy idle while maintaining good driveability with a manual transmission. I believe lift is. 500 EX 139 @. (new car) I believe the E cam has a. While the GT40P heads do provide a bit better flow, the angle of the spark plugs make it a real pain in the ass. I have Stock block with 347 stroker kit. Valve Spring Kit GT40P, Low & Mid Lift Cams, High Output Drop in up to. 71 exhaust valves let 'em breath. My thinking is if I spend $200 on heads, $800 on porting and other parts, Ill still be ahead by $400 leaving room for a retrofit roller cam and lifters. 10 geari culd definalty hit 12s,,,89rustang has a similar set up as urs with the eFI and ran low 13s with 3. It's the area inside the newly cut seat for GT40 valves. I always look for the 5. GT-40 Intake Edelbrock Intake Cartech Intake Dart-Heads GT-40 Heads pro - M Bullet Throttle Bodys 75mm than the oddball metric factory stuff. So, when you decide to buy a cam head, make sure you have the Windsor and not the Cleveland model, or you are just wasting your money and time. Custom Camshafts, Valvetrain, Valve Springs, Push Rods, Timing Sets. The newly cut seat needs to have the old seat / throat area opened up so that the flow potential can be utilized. i have gt40ps i use with a b303 cam, air gap intake and a 600cfm carb, with a good launch, right susp and good driving im shure i culd run low 13's, with a little more gear maybe a 3. 71 Aluminum Heads GT40 EFI OR. gt40 heads have 57 or 58cc cumbustion chambers. In 1996, Ford used GT40 heads on Explorers, Mountaineers and Lightnings, until the GT40s were replaced in mid-production 1997 with upgraded GT40P heads. Holman and Moody have a web site you can order it from. Jump to Latest Follow 1 - 13 of 13 Posts. The Explorer/GT40 throttle body is 65MM, the intake ports are huge, and the valves are much lager than a stock 5. The Ford Racing Z303 Performance Camshaft is designed for use in the 1985-1995 5. You only read the beginning!! Go back and read the rest where he quits farting around with the E7's and moves on to better heads (GT40P). 97; Mutha Thumpr™, 291T HR-7: Camshaft Kit $1,122. 94" intake 1. NA aluminum heads GT40 intake guessing decent cam I would say 290 -310 hp and that is giving more credit that it deserves To view links or images in signatures your post count must be 10 or greater. For stock cylinder heads the of use M-6513-A50 valve springs installed at 1. 7 pedestal mount rockers. So there is a big gain there. 0L V8 Mustangs with a roller cam block. 14 Ford SBF V8 289 Stage 4 512/512 Lift Cam Camshaft 302 MC2292. The Ford Windsor V8 is mated to a 5-speed manual transaxle and is equipped with aluminum heads, MSD ignition, a Holley carburetor, stainless steel headers, and more. 6 roller rockers, e303 cam, 65mm tb, 75mm maf and 24# injectors (good for about 280 at the wheels) My Balls out street combo AFR 165's, Holley Intake, 70mm TB, 75mm Maf, b303 cam, 30# injectors (good for 350 at the rear wheels, but noticable loss in low rpm torque do to holleys gigantic intake). 600 the differences should even out because the head will get more air before those high lifts are reached. I reasently snaped a rocker bolt. cam ,2800# mustang. Find Ford Performance Parts Camshafts M-6250-E303 and get Free Shipping on Orders Over $99 at Summit Racing! Ford Performance Parts guys live, eat, and sleep Ford. 540" Lift (ADD HARDENED VALVE SHIM KIT: No, ADD VITON VALVE SEALS: No) VSK7G49-M If I go back to the Stock Explorer cam, I'm running the springs I have now. Several of the SEGA guys run 4V heads to good effect. s that will work with the stock pistons and heads - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. 7 Roller Rockers in a 306 with 14psi it has decent street manners and pulls hard past 6000 in a 92 mustang. Find a set of GT-40 heads from a later 5. O16-19: Joined: Mon Sep 11, 2017 8:09 pm Posts: 208 You can use 1. I believe lift is. 9L 318 360 Magnum Cylinder Head 6671 / 0466 SET Genuine OEM Dodge Jeep 5. def better cams than the e303, and dont worry about emissions if you have cats n ****, sean passed with a 347 stroker, trickflow stage 2 cam, and 30lb injectors, its all in how your cars running, and the gt40p's are more effecient at burning all the gas than the stock heads, so that helps too. I run 4:30 rear gear. Built with the following components: SCE Copper Head Gaskets, Melling high volume oil pump, Eagle crank, Comp Cams road/race cam, Clevite bearings, SRP flat top pistons, Eagle H-Beam rods, DSS stud girdle and windage tray, Original GT40 Aviad oil pan, Original GT40 crank, water pump, and alternator pulleys, Original GT40 alternator bracket and. These are some of the best castings Ford ever produced for this engine, and are still fairly cheap and available used. 10 geari culd definalty hit 12s,,,89rustang has a similar set up as urs with the eFI and ran low 13s with 3. OUR REMANUFACTURED CYLINDER HEADS INCLUDE: Chrysler 2. F cams seem to work best with forced induction. Good Luck!. But, the direction the car will be going in the future is way better heads then the current ones, so If I was gonna order a cam, I would want it to be cut for a much more radical motor then this one. Street/Strip Performance. Anyways, I know the gt40ps will bump. To tell the difference, take a look at the castings on the heads themselves. •CHP 347-AFR heads & XE292R cam •Peak Horsepower-GT-40 450 hp @ 6600 rpm •Peak Horsepower-Victor 5. I have not put a fuel regulator on it yet but I was wondering if that could be my problem. I'm not a big fan of the alphabet cams though. I have nice 93 cobra mustang top end. Inside the bore is a honeycomb fixture to measure "swirl" of the intake air as it exits the intake valve. 0L roller lifters and hardware, and the factory stamped 1. 6 rocker set from comp cams. So these AFR heads really are. For Heads, gt40 heads came on 5. i have gt40ps i use with a b303 cam, air gap intake and a 600cfm carb, with a good launch, right susp and good driving im shure i culd run low 13's, with a little more gear maybe a 3. For this build, I decided to go with one of Ford’s famous letter camshafts. 1991 roller block 306 CID, GT-40P heads (slight port work, exhaust mainly), With my pistons, I estimate the static compression ratio to be 9. 30 on radials , y303 aluminum on my 351 lightning (really woke things up over 3k rpm), and Dart Sr,s on both the 306 race engine (525rwhp) and the 408 in ffr5020 580hp(flywheel). Buy Ford Performance M-6250-X303 at JEGS: Ford Performance X303 Camshaft Trans: 5-Speed. 7 roller rockers too. GT40/GT40P heads were a more free flowing cylinder head that outperformed the factory E7 heads that were found on most 5. The nominal 9. the only downside to the P heads is that the spark plug is angled slightly different than regular gt40 or other heads but its not a huge deal. I did a engine swap on my mustang gt to a ford crate motor gt40 with and x303 cam and x303 heads i added a cobra intake off a 94, a inch bbk intake spacer to clear the valve covers, 30 lb injectors and mass meter from brothers perfomance a 70mm throttle body,stock ignition exc for the coil,cold air intake not k&n because the problems. The flows are similar but, where the P's have the advantage is in combustion efficency. I will be using a hilborn efi intake so I can go Cleveland or Windsor. 0 shortblock. In 1996, Ford used GT40 heads on Explorers, Mountaineers and Lightnings, until the GT40s were replaced in mid-production 1997 with upgraded GT40P heads. supercharging). I used mild ported GT40 Iron heads on a blown gtconvert with a stock cam and 3. The following bench flow data was taken from these articles. Street/Strip Performance. GT40's aren't even the best iron head, World Product iron heads are better. I want to put Roller Rockers but not sure what the difference would be using 1. You probably should consider it. Ford 289 302 351W 408 427 5. If the heads or block was ever milled, etc. Build A 505HP Ford 351 Windsor. 302 heads with the fat spark plugs are smaller. One needs repairs dropped valve $300. Ive got an 89 bronco with a 351w efi. I'd really recommend the 1996-1997. 7 liter (289 cubic inch) based on that of the Ford Mustang. I have the original 302 in my 68 Torino. Ford Gt40 P 4bar cylinder heads in good condition. I'm looking to do cam and heads. GT40 vs 351 heads. heads with 1. 7 Roller Rockers 24lb injectors Stock GT Cam FRPP Shorty Headers Mac Prochamber Flowmaster Catback 3. Find a set of GT-40 heads from a later 5. cam ,2800# mustang. Custom Camshafts, Valvetrain, Valve Springs, Push Rods, Timing Sets. Get the best deals on Cylinder Heads & Parts for Ford Mustang when you shop the Cylinder Heads REBUILT 302 351 GT40 SBF CAM CYLINDER HEAD. i have gt40 alum. Does anyone know if an exhaust upgrade has a noticeable affect on performance?. Find many great new & used options and get the best deals for Ford 289 302 351W 408 427 5. but easiest way for my to quickly identify regular vs P heads is the 90. SKU 751470-5003S $1705. I just treated my 90 GT to the same cam and dual coil comp cam valve springs, and have neither the knowledge, nor the facilities to check valve clearance. Find Ford Performance Parts Camshafts M-6250-X303 and get Free Shipping on Orders Over $99 at Summit Racing! Ford Performance Parts guys live, eat, and sleep Ford. 6 rockers versus. No, I am saying that the GT40 and GT40P heads can be ported to flow better than ported E7 heads. This Ford Racing cam is a great replacement choice for increasing your pony's torque and horsepower up to 6200 RPM, and it has a fair idle. 1969 Camaro Lt5 Swap. Ford 302 roller rv cam Ford 302 roller rv cam. X2 on the E303 cam/GT40 head/Weiand Stealth intake combo for respectable power, nice sound and good drivability on the cheap. GT40/GT40P heads were a more free flowing cylinder head that outperformed the factory E7 heads that were found on most 5. GT40 intakes naturally, 1" trick flow spacer, EGR spacer, 70MM TB, 70MM OBD1 Crown vic MAF, xe258hr cam, lifter/pushrod and 1. Heads Ford Crate heads Big Block Ford. Those heads and that cam with all the other basic bolt ons is good for a little over 300 RWHP. My question is will the GT 40 heads bolt up with no issues and extra work. One trick has been to. 00 labor only to 1 pair of heads. re: gt40 heads on a 1996 351w Post by Polarcub » Thu Sep 22, 2011 7:43 pm Randy I can meet up with Tom during the week and bring the cam up with me since I work pretty much across the street from him, plus its a good excuse to grab lunch or a cup of joe with Tomhaha Let me know. @ 4700 rpm. A set of used gt40 heads can be had for $200 or so, and I have connections that can port them for a reasonable price. How to Build a Cheap Drag Racing 302 Ford Motor X303 or F303 cam, or any of the similar units from Indy, Lunati or your favorite manufacturer. These cast piston short-blocks are not quite as good as the forged piston 5. The cylinder head installation is a thorough process and there are steps you must take to ensure proper cylinder head alignment and torque specifications. The GT-40's have much larger intake and exhaust runners 100% stock. The Ford Racing Z303 Performance Camshaft is designed for use in the 1985-1995 5. The head fixtures: note the clay lip on the intake port, the 1 7/8" header tube on the exhaust side. ran mid-high 12's all day on drag radials with stock suspension. i have a basically stock '94 cobra and was wondering what the biggest cam i can fit in the stock motor without clearance issues is? i've been hearing that the ford f303 fits right in without valve clearance issues and is the best choice for a 5. But was wondering if the heads on this ed sprint would be different specs or not, or would they be the same as an AU v8 maybe?. 00 or best offer Pro comp aluminum sbf heads with 1. Make an offer!. 6 rockers had no clearance problems cam installed straight up. aftermarket head. any ideas?? im looking for a tad more power down low than the e303 and a better idle but still lopey. Anyways, I know the gt40ps will bump. 7's right now but they have a 5/16 bolt what is the bolt size on the gt 40's. 00 for upper and lower end 50 for headers. 6 rockers/70mm TB: 355hp/380lbft (310rwhp/330rwtq T5, 270rwhp/290rwtq AODE) Holley 300-575 heads/Lunati 51027 cam/Holley Systemax II intake/1. I would think the Fairmont is lighter, and the carb intake setup will pull higher. Quick Navigation Tech Forum Top. 1964 was the year Colin Chapman set about creating the birth of one of the lowest slung coupes ever made - the Lotus Europa. Ford GT40 Mk II (man. i am looking at 1. See Post #12 4 lines is the P heads therefore 3 lines are the plain gt40. The head fixtures: note the clay lip on the intake port, the 1 7/8" header tube on the exhaust side. For stock cylinder heads the of use M-6513-A50 valve springs installed at 1. The cast-iron Sportsman head (M-6049-N351) from Ford Racing is a nice compromise between the Z head, GT-40 Turbo-Swirl, and the Yates NASCAR head. 602 lift (Intake),. Good Luck! 10-01-2001, 09:12 PM. BEST SELLERS. When "Undercover Ported", the GT-40 head will flow 202 to 210 cfm intake and 145 on the exhaust side. 5", aluminum driveshaft, T50d tranny, supposed to be rebuilt. Trick Flow Specialties is a leading designer and manufacturer of high performance cylinder heads, intake manifolds, and engine components. 10 geari culd definalty hit 12s,,,89rustang has a similar set up as urs with the eFI and ran low 13s with 3. Street/Strip Performance. I would probably go with an E303 or an X303 for street use. If you decide to switch over to aftermarket heads with larger valves (which is what the X303 cam is really designed for), you will definitely have clearance problems with the stock pistons. I can get a set of explor gt40s for 70 bucks. For use with aftermarket cylinder heads, Ford Racing M-6513-BH valve springs are recommended. Jump to Latest Follow Status Not open for further replies. X303 cam (. 7 Roller Rockers 24lb injectors Stock GT Cam FRPP Shorty Headers Mac Prochamber Flowmaster Catback 3. You can’t see the extra displacement; it just makes itself known with extra torque and horsepower. 4 Gasket 85-95 Bolts 22RE Head Set Fits Fits 22RE Set Head Cylinder Gasket 85-95 2. Application. These are my plans: I wanted to build a forged 306 shortblock with GT40 heads, E303 cam, 1. 00 labor only to 1 pair of heads. 45 intake and exhaust valves and 65 cubic-centimeter combustion chambers, the GT40 head was better suited for performance than earlier Ford cast-iron cylinder heads. The primary difference is the GT-40 heads and a slightly hotter cam. have X cam and. 5 viewed per hour. 0 with afr 165 heads, 4 speed, 4. Other brands did the same thing under different names at Ford it was the GT40 head for the Windsor, at Chrysler it was the Magnum head for their LA block. Application. GT40 Cylinder Heads. The GT40 heads (Cobra mustang, SVT Lightning and some Explorers) have 3 "bars" cast into the front and back of each head The GT40P head has 4 bars Keith/Bumble. The Ford Racing X303 Performance Camshaft is designed for use in the 1985-1995 5. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. 392 CI - 430HP GT-40 Aluminum Head M-6007-D351RT - Ford Racing Crate Motor Now we're talking. Ported Gt40 heads and intake. 73 ratio from Crane Cam. The stock seats have been removed and I installed a pair of Recaros. If I remember correctly the p heads had to have certain headers because of the plug angle. 4 with TFS 170 heads) and I plan on slapping on a kenne bell in the future. BEST SELLERS. 7 rocker arms and put a Edelbrock intake on it. 1; 2; Next. 7rr but if not i will put 1. The reason these cams are popular is that they’re dirt cheap, ranging from $100-200, and make decent power especially when paired up with a set of high flowing aluminum cylinder heads. You probably should consider it. Find Ford Performance Parts Camshafts M-6250-E303 and get Free Shipping on Orders Over $99 at Summit Racing! Ford Performance Parts guys live, eat, and sleep Ford. Techline 1-800-367-3788 Page 1 of 3 IS-1850-0305 Factory Ford shop manuals are available from Helm Publications, 1-800-782-4356. 0 Fox Body Mustangs. It can be welded I just am not brave enough to try these heads anymore. im looking for good power up to about 6000rpms. 8 rear end (3. Since a lot of electronic things are required to work with the computer i was wondering what sort of special things i would have to do to make this all work. 6 rockers on top of GT40P heads. You can pick up B and E alphabet cams cheap, but they're 20 year old technology. Production heads like the GT40's and GT40P's. Ford GT40 Mk II (man. The GT40P heads had a small combustion chamber ranging from 58-61cc while the GT40 heads had a 63-66cc combustion chamber. 1969 XW Fairmont- 1999 explorer 5. There are a lot of variables that must be addressed to give a better estimate, but a good basic estimate is 20-40 HP at the crank. 87-93-95 Ford Mustang GT40P Engine Cylinder Heads REBUILT 302 351 GT40 SBF OEM (Fits: Ford Mustang) VALVE JOB, MACHINED & TRICKFLOW VALVE SPRINGS UPGRADED 5 out of 5 stars. For aftermarket cylinder heads the use of M-6513-BH are recommended. The X303 and Z303 are a great drag strip cam, making lots of power up high. 820" HARDENED PUSHRODS, SB FORD 289, WORKS WITH GUIDE PLATES $21. 500 a good way to figure horsepower n/a is to double the intake flow number's cfm and that's a ballpark of the hp level that the heads are capable of with n/a. This was a SN95. 5 I think were the regular GT40 heads. These beautiful works of art built by English and American craftsmen displays where two tubes from each bank of the V-8 are crossed over the engine to collect in 4-1 collectors with. the biggest cam you can run with unnotched pistons is. Year: 1988 88 Mustang GT hatchback tons of extras mint condition GT40 Intake and heads x303 cam. I will be using a hilborn efi intake so I can go Cleveland or Windsor. This 1965 CAV GT40 (Stock # 30659) is available in our Pleasanton, CA showroom and any inquiries may be directed to us at or via email at [email protected] def better cams than the e303, and dont worry about emissions if you have cats n ****, sean passed with a 347 stroker, trickflow stage 2 cam, and 30lb injectors, its all in how your cars running, and the gt40p's are more effecient at burning all the gas than the stock heads, so that helps too. the only downside to the P heads is that the spark plug is angled slightly different than regular gt40 or other heads but its not a huge deal. I decided to go with. 0 cobra since it has the gt40 heads/intake already. Roller Cam. When I rebuilt it last year, I brought the compression up to 9:1, added a C9OE 4 barrel intake, put in a Comp cam, and used p heads; unfortunately I didn't get it in the water this summer. Buy Ford Performance M-6250-X303 at JEGS: Ford Performance X303 Camshaft Trans: 5-Speed. I have access to a low milage late 90s ford truck motor with a factory roller cam. Street/Strip Performance. Ive been told several things by non experts. Mechanics 302 Scat Forge Crank Eagle Rods TRW Pistons Melling Oil Pump Trick Flow Main Girdle AFR Studs E303 Cam Pete Jackson Drive Roller Rockers & Lifters Ported x303 Heads Ported GT40 Intake 70mm Throttle Body. Rich - 92 GT S-speed T FS TW heads, 8-303 cam, Cobra intake ported by T moss, Accufab 070 mm T a, 1 72 rris, 24 lb/hr injectors, 73 mm MAF, full exhaust, 3. Removed from good running motor. 60" exhaust 50 State Smog Legal: Depends on stock. Quick Navigation Tech Forum Top. These cast piston short-blocks are not quite as good as the forged piston 5. In addition, the cam. Good Luck! 10-01-2001, 09:12 PM. Ford 289 302 351W 408 427 5. One day later, Alex had created our first Gt40 SBF spring kit, ready for testing. With Lotus 7 production waning, Colin Chapman was looking for a car to. The Explorer/GT40 throttle body is 65MM, the intake ports are huge, and the valves are much lager than a stock 5. The newly cut seat needs to have the old seat / throat area opened up so that the flow potential can be utilized. 5:1 Compression, Roller Solid Lifters (838-16) Custom Comp Cam and billet main support with. I would probably go with an E303 or an X303 for street use. The cam card will tell you what springs it recommends or call up the manufacturer's help line. 7:1 stud mount rockers are installed with hardened pushrods. They also have new valve springs and locks installed and are good for 500 lift. 00" Stroke Cast 3. The roller rockers are Crane 1. GT-40 heads and Trick Flow heads, among many others, can also be used, according to your budget. 00 View Details Ford 289-302 1 5/8 header GT40P heads classic Mustangs, Mavericks, Fairlanes. 2" deck engine for your vintage muscle car, street rod, Fox Body or Late Model Mustang. and i was going to go with a exhaust biased duration cam like an anderson n-21, or maybe a crower cam. I plan to rebuild them and everything, but idk if they'll match up with my cam, I have a 544 cam lift in it right now, and was just wondering if I needed to change anything before i put them on?. GT40 Cylinder Heads. Power Heads by P. 05 1/8 mile. Their camshafts are designed for everything from mildly modified street rods to full-out drag racers. 8L performance. Posted: Sat Jun 15, 2019 12:13 am. Modern quad cam engine design using latest technologies. 6L motor, Latemodel Restoration has just what you need!. Make an offer!. I always look for the 5. 0L Fox-body Mustang. You can machine out the 'bump' for the thermactor port in the exhaust ports for a little more flow. e303 cam question. I have Stock block with 347 stroker kit. 1 - 20 of 23 Posts.