Ford gt40p heads valve springs

78/1. this head fits years 95-01 explorer mountaineer mercury mountaineer . Ford put springs that were just adequate for the cam in the engine which is a very mild cam and Northern California Ford Owners » Automotive » Tech Talk » gt40p heads new valve spring install how : Email this post to someone! got a Ford back in the stable! I know this isnt the wisest thing to do and I am going to change the springs out soon. Alex 5057307964. 3 turbo ford game and am now on to 460s I figures the valve guides would have to be machined for clearance as so does the 2. Luckily, the main valve spring is OK, so the engine didn't get destroyed. 472/. Comp Cams Ford Comp Cams Ford Gt40 Heads Valve Spring Set 16 M 6513 A50 972 16. Cam is Lunati barebones cam (. September 01, 2013. ford 302 sbf gt40p v8 cast iron complete cylinder head. 7/1. along with the purchase price of the heads I could have got a VERY cheap set of aluminum heads. 02 intake and 1. Let me know what you have. In my old '62 Galaxie I dropped in a rebuilt roller cam 302 with stock E7TE heads (w/ Trickflow valve spring kit), Trickflow Stage I cam, Edelbrock Performer RPM I had the gt40p heads, and the torque monster headers for a 2000 explorer (gt40p egr). Application: Hydraulic Roller, up to . You don't need to spend a fortune to get a top-performing, lightweight aluminum cylinder head for your small-block Ford V8. When doing the math, I realised there will be only 0. I recently pick up a set of used p heads that are completely stock and supposedly pulled off of a running mustang. This usually brings up the point that Ford cylinder heads used induction hardened valve seats and quite a bit of material has to be removed to install a 0. the springs are new stock oem ford. 444 in), it is best to replace them as well. These are some of the best performing ford heads available. With 1. I replaced the 289/271HP with 69 4 barrel 351 heads, screw in studs and guide plates, didn't mill the heads and used the Ford steel shim gaskets and turned 12. 60 exhaust and crane valve springs $450. ; 1. My advice to you is get some aluminum heads. 012 cc recessed pistons, all together. ford gt40p heads valve springs. I have a dyno printout for 241 / 295 to the wheels. Valve Spring Locators and Seat Cups provide a hardened barrier between the springs and the aluminum heads, positively locating the base of the spring to prevent unwanted spring movement. Presenting the PowerPort® 175 cylinder heads—specially designed and engineered to deliver more go for 390-428 engines! Early production 96-98 4. also make sure what you valve springs are One of my damper springs broke. Filter. Car specifications: Price: (0 bids) $23 Car details. 224 @. Stock air flow on this head tops out at 190 cfm intake and 128 cfm exhaust. They got a 3 angle valve job and a bead blast. Comp Cams Ford Gt40 Heads Valve Spring Set 16 M-6513-a50 972-16 Gt40p Iron Cylinder Heads 4 Bar Ford Mustang Gt Lx Used (normal wear), Set of three Ford GT40-P 4 bar heads. The Powerstroke Products Loaded 6. These springs are ideal for Big Block Chevrolet and Ford as well as B/RB Chryslers with flat tappet camshafts used in racing. 580" Lift Fitment: GT40P, E7 and other 302 heads w/ . HO 302 roller block, bored and torque plate honed . 7 Ford roller rockers. Planning to install Comp Cams solid roller ( 248 / 248 . Assembled with M-6513-A351 hydraulic roller valve springs: Closed seat pressure 135# @ 1. 645) in Edelbrock RPM heads. All I thought that using the stock 302 HO springs would give me bad valve float and I would go with the tfs1 cam and 1. I have read that the stock valve springs suck on these heads. how much lift can these springs handle in stock form? I am installing these on my 94 GT AODE with stock cam and rockers. 580" Lift Fitment: GT40 302 heads Late model GT40 heads require special attention when selecting valve springs for high lift, high performance Hyd Roller Cams. 6 Best performer up to 7200 rpm shift point. We offer a plethora of Ford 302 Gt40 Heads for your vehicle needs. And are good up to a . 7x roller rockers, 8. On the GT40P heads, the spark plug angles are different than GT40’s. I have a 79 block, . 393"/. 323603184986 ford 302 sbf gt40p v8 cast iron complete cylinder head and head bolts and head gasket set. GT40/GT40P heads were a more free flowing cylinder head that outperformed the factory E7 heads that were found on most 5. Trick Flow High Port SBF 225cc Cylinder Heads 70cc O-Ring 1. 31. I am looking to purchase the crane conical valve kit #44308-1. Each individual rocker has its own shaft mount. In this little post, I decided to video the process of using the Harbor Freight valve spring compressor. FordMuscle obtains and flowbench tests just about every small block Ford cylinder head available. GT40P Head Swap 1973-1991 Ford theres noway that could have been done by the valve/spring unless the rocker mounting hole is wallered out and I used the stand Ford GT40P Heads 4 Bar. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and the retainer. This dual valve spring set features a 1. I had to make one to change valve springs on some Boss 9 heads. Where the stock E7TE heads relied on a 1. 214/. i heard the stock gt40p springs are just (barely) enough for the stock H. 0 Fox Body Mustangs. this is a very nice not so stable cam. 160-inch bigger intake and a 0. I rebuilt the heads replaced springs, retainers, seals, locks etc. The keeper groove in the stock exhaust valve (left) is lower than with non-rotator-style valves because GT40P heads use shorter springs and a thicker retainer. 55" Valve Springs Titanium You are looking at a used vintage valve spring compressor for the flathead type engines. Why @vroomzoomboom didn't, I have no idea. Ford racing, trick flow, comp cams, Anderson ford motorsports all make upgraded springs for stock cast iron ford heads. The step on the keepers is sheared off, so my guess is they failed first and then caused the spring to break, but I'm not really sure. idk if the crane beehive kit is still available, but trickflow makes a set that is supposed to be "drop-in" for OEM heads; i think this is the part #TFS-2500100 Pair 5 0 Small Block Ford Gt40p Cylinder Heads 302 Explorer Mountaineer No Core. Fits Factory Heads, no machining required. 57-inch combo. Technically the correct procedure would be to install new hardened valve seats along with the new valves to prevent rapid seat wear. CSI Automotive Sales, Service & Parts. 15" hardened pushrods, hosed up my 70W heads and saw some new/bare/iron GT40P's for $200 on eBay. Ford 302 Gt40 Heads. 645 . my brothers gt40 crate motor seems to drop off I have a brand new set of Ford GT40P heads (Explorer) coming my way that I'll be installing on a bone stock 1990 5. All I have done to it is converted it to carb, b cam, and valve springs to accommodate the lift. Small Block V8 (221, 260, 289, 5. o intake to a set of gt40p's from the junkyard after i get some money and yank the heads and put new seals in them and upgrading the springs! I am running stock PI 2 valve heads/cams with a built bottom end and using a garrett GT4082. Could use a cosmetic restoration, see all pictures and do not hesitate to ask any questions. Trick Flow is at it again, Ford fans! This time Trick Flow is serving up a heaping helping of horsepower for the legendary Ford FE. Wasn't real happy with the performance. do NOT contact me with unsolicited services or offers 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. Free Same Day Store Pickup. These GT40P heads for the works! They received all brand new Ford valve seals, keepers & retainers. 1998-2001 FORD Explorer 4 Bar GT40P Cylinder Heads Pair Mustang 5. There is a lot more left in this turbo. This spring kit is what we use in our dual purpose street/track GT40 iron heads which require a stout valve spring. The installed height of a valve spring is the total height of the spring when the valve is closed. Designed to upgrade factory Ford 289-351W cast iron cylinder heads. 2008-2010 Ford 6. The heads are back from the machine shop and they’re looking shiny and new. All camshafts come with a recommended valve spring height; it is usually on the spec card included with the cam. 0/302, 5. 06" safe margin at max lift vs given coil bind height( 1. The problem is I have stripped my engine down and can not get hold of any valve springs for my Compared to the stock Ford castings, the Edelbrock Performer RPM heads offered more of everything, including aluminum construction, larger valves, and increased port volumes. Rebuilt/ Upgraded - GT40P cylinder heads - $550 (Pearland) These heads have been converted over to accept 3/8 stud mount roller rockers, they have new comp cams 3/8 studs and had new valves and valve job done, new comp cams double valve springs which are rated for max . How many times have we found we have a small valve stem leak only to cringe at the idea that we now have to take the head all the way off the motor? Well there is a better way and . The springs are 99841-16 and the steel retainers are 99942-16. F77E I put a set of GT40P heads on my mustang last summer from the stock heads. B303 will run hard with the GT40P heads. Like other stock castings, there is plenty of room for improvement with this head. This engine has the GT40p heads on it. UNIVERSAL ON HEAD VALVE SPRING REMOVER / INSTALLER use w/ BENZ, BMW, TOYOTA, FORD more BRAND NEW in SEALED CaseUse with the cylinder head still on the engine and in the car, or with the cylinder head removed Special designed to remove and install the valve spring and oil seal on various vehicles. I love em. 498" of lift intake and exhaust. Included in all MHS 2V PI Cylinder Heads: New Custom Manganese Bronze Valve Guides, Honed to Size; Performance 4/5 Angle Valve Job on Intake, Radius Exhaust You don't need to spend a fortune to get a top-performing, lightweight aluminum cylinder head for your small-block Ford V8. 540 lift. 1970 ford windsor heads with 2. 00. VR255 CNC Highport 20° Cylinder Heads are the baddest Highport head available for your Small Block Ford. 18"). Save yourself the hassle and go with these GT40P specific headers from Ford Racing and save your Comp Cam Triple Valve Springs Valves were custom ground triple grind Heads were shaved . 4HeadLHDVS. I didn't want to pay $200 for a pair of on-head spring compressors, so I made one myself. 0 Mustang. with the 1. 7s. 0 302 SBF HO - $524. hole size 302 is 7/16 and 351 is 1/2 Anderson F-82 Two valve Camshafts for PI Heads with AFM Valve Springs & aftermarket pistonsRPM range 2800-7200 Forced Induction 13lb. 0l, and higher performance than stock gt40 (non-P) heads. show contact info no texts . 0l 5. Absolutely beautiful! Although Twisted Wedge Heads make great performance improvements for the street, our Stage 2 Competition CNC Porting is for the discriminating enthusiast looking for the MAXIMUM that his Heads have to offer. D. GT40P Head Data: Valve Size: 1. 290rwhp/299 rwtq. Contributed By: enginebasics. 700" Machined 7-degree locks and retainers, premium valve seals Uses Motorcraft AGSP series spark plugs NOTE: If replacing Ford Racing or production Cobra Jet heads, new intake valve notches are required These heads come in bare (only the finished casting) and assembled (heads with valves, valve springs, locks, retainers, and seals) configurations. Looks like someone pinched or closed one end slightly, see photos. Stock Lead Time Typically 5-6 weeks Kent Cams valve spring set Ford CVH turbo HD Thursday comes around and they have not yet fixed anything, its still in a bay, and no one knows whats wrong. my brothers gt40 crate motor seems to drop off These headers are very high quality and come with all bolts and gaskets from Ford Racing. They were most famous for their debut on the 1993 Cobra. 008 (don’t hold me to that figure,, but they were shaved true) Following Information Taken From CarCraft Magazine on GT40P Heads. 85/1. This little gem can be picked up for less than $20 and will allow you to do much of the valve train work yourself. I use the stock valve springs. Comp Cams Ford Gt40 Heads Valve Spring Set 16 M-6513-a50 972-16 Gt40p Iron Cylinder Heads 4 Bar Ford Mustang Gt Lx Comp Cams Beehive Valve Springs are revolutionizing performance street/strip applications! These valve springs deliver inceased valve train stability, and a reduction in weight. If you follow that Dual Valve Spring Set 1. My question is. All I thought that using the stock 302 HO springs would give me bad valve float September 01, 2013. May somebody be able to reassure me that I am purchasing the correct crane spring kit number for the gt40p? Anderson F-82 Two valve Camshafts for PI Heads with AFM Valve Springs & aftermarket pistonsRPM range 2800-7200 Forced Induction 13lb. Rear intake bolts broke in head. Check out latemodel restoration, American muscle, ford racing or any aftermarket parts suppliers and they'll have what ya need. the valve spring upgrade is a good idea if you're upgrading the cam, esp. Featuring 255cc Intake Runners for 387+ cfm of flow, 68cc Chambers, and 290+ cfm Exhaust Ports - these heads make serious power! up for sale is a pair of gt40p heads ready to install has new valves and springs was on the car for about 2000 miles before car was wrecked $450 call 754-five eight one -5135 foxbody mustang 86-93 The Racers Edge Performance - Trickflow Twisted Wedge Cylinder Heads offers new ford mustang performance cylinder heads at cheap discount wholesale prices. They got me into the 13's without the Vortech and I know I could do better if I had traction. 0 Small Block Ford Gt40p Cylinder Heads 302 Explorer Mountaineer No Core Ford Racing Valve Stem Seals Gt40 87-93-95 FORD MUSTANG GT40P Engine Cylinder Heads REBUILT 302 351 GT40p SBF OEM - $550. Manufactured By Ford. BPE racing head service and COMPETITION HEADS did the work . Its basic purpose is to allow the valve to be opened, and then return each valve to the closed position while keep it tight against the I replaced the 289/271HP with 69 4 barrel 351 heads, screw in studs and guide plates, didn't mill the heads and used the Ford steel shim gaskets and turned 12. ford gt40p heads valve springs About Valve Sizes: 1. Small Block Ford cylinder heads offer high horsepower potential on competition level engines and are compatible with OE valve train and pistons for bolt-on convenience. GT40 heads and valve springs The valve springs WILL need replaced. 510", but I am also lead to believe this is more of a concern with the GT40-P heads. 0 143237241248 Order Ford Taurus Valve Spring online today. Description: gt40p heads off a 98 explorer. 6 RR's and change the valve springs so you don't experience valve float. 8". For the ultimate small block Ford street car, you've got to check out Airflow Research's "Renegade Series" 165cc emissions legal aluminum cylinder heads. 1 Stock Ford GT40P * Flow data I know this isnt the wisest thing to do and I am going to change the springs out soon. Otherwise they are in good shape. 0l. It is not cracked or damaged anywhere. The Edelbrock 77189 Victor Jr. When that happens, it's a barrel of laughs. 850"; Open seat pressure 365# @ 1. im looking for good power up to about 6000rpms. The short block I have currently has the Edelbrock performer plus cam, which has 0. 615". 00 View Details. They were purchased from a parts yard and never used. more than meets the eye. 837 int valves and 1. FTI - GT40 Beehive Valve Spring Kit This special FTI beehive valve spring kit is designed as a direct replacement for stock, single springs used in most GT40 heads. Thursday comes around and they have not yet fixed anything, its still in a bay, and no one knows whats wrong. This loaded cylinder head starts off as a brand new casting and is assembled with new valve seals, valves, and valve Fox Lake Stage 2 CNC chamber. 0l w/new valve seals bare heads w/orig used springs retainers keepers but no valves less then 100k good for rebuild $75 obo for pair im also running the E303 cam would 1. they would be a huge improvment over stock heads and can handle a f cam and lower w/o the imediate need to change your valve springs. Ok thanks for all the I go I just got out fo the 2. The spring kit is crn-44308-1 and thats the conical for T heads or GT40P's. cylinder heads Livernois offers something that most of our competition just can't match, complete in house cylinder head development from start to finish. They are just a all around CSI Automotive Sales, Service & Parts. 850" and a maximum lift of . 850" Installed Height, . I've read that the GT40P valve springs are the same as the current E7 ones on my car and that they will work fine with the stock Mustang HO cam. Comp suggests 929 valve springs. Our engine has about 125,000 miles, almost 20,000 miles in the Cobra. Check out free battery charging and engine diagnostic testing while you are in store. Both of the kit links I saw posted here do not have a tool which will allow the valves to remain in the head during spring change. 02/1. Everything possible good was done no porting no spring seat machine means that you don’t have to worry about those things being done not to your liking or application. 80,000 Or Lower Miles. 0L Ford from the boneyard, ported the heads, added a cam, carburetor, intake manifold, and I checked some threads, but didn't find the exact info needed. 615" Max Lift. 565 lift roller cam. Yeah it may seem expensive, but I have firsthand experience with GT40P heads. 78" int. I'm trying to figure out what springs I have. i had planed to use these on my 351 but found the header ports to be to large to Compared to the stock Ford castings, the Edelbrock Performer RPM heads offered more of everything, including aluminum construction, larger valves, and increased port volumes. 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. Learn More. If you don't have a spring compressor, autozone will be able to rent one to you. 481" tip length valves 2N stainless valves lapped and Trickflow 2500100 valve spring kit review Trickflow Ford valve spring kit review for GT40P heads Testing and shimming competition valve springs for maximum I was talking to a friend about a set of GT40P heads he has and he was telling me that the stock springs are good to up to 700hp, how true is that and I have about the same setup GT40P heads, E303 cam, but 1. Make sure you check it now matter what. The above paragraph talks only about spring options for GT40P heads. 72 rockers. The springs in the gt40p heads are supposedly good for The problem is I have stripped my engine down and can not get hold of any valve springs for my heads, I am told 72 302 valve springs are hard to get hold off or obsolete, so it might be just as easy to buy these set of heads to fill in. Performance Valve Spring Kit for SB FORD GT40. 536 exhaust valves. 150-inch bigger exhaust valve. The springs in the gt40p heads are supposedly good for The GT-40(P) cylinder head is popular for classes that must run a stock Ford production head. I also have a brand new set of Comp Cams valve springs for the E303 cam that I’ll throw in for an extra $100. They list two different part numbers for the locks. 0 L engine called the GT-40 head (casting ID F3ZE-AA). 030, with . I was hoping that someone who knows may correct me if I am about to purchase incorrect drop in valve springs for my gt40p heads. There are a lot of shops that offering porting, or CNC porting, or cylinder head machining. All MHS 2V PI Cylinder Heads are Romeo or Windsor Late Model 8 Thread Castings. I personally do not think these E-Street heads as-sold-new are any significant improvement over the GT40P heads (which are half the cost of the E-Street heads) in a budget street performance engine. They'll work with the stock rotators (if applicable) and fit the spring pockets Mighty Mouse is correct and has a great memory, I did that @ 8 years ago on a pair of GT40P heads. 1937-53 Ford/Mercury V8 Valve Spring Ford 221 V8 1935 Flat Head: 1932-53 Ford/Mercury V8 Valve Keepers Write a Review. we rescued a used 5. However with a better set of valve springs and a port tidy-up they are most certainly a big step up from GT40P's. I will get float after 6200 rpm, I don't go above 6000 rpms any more, just don't need to do it. plus 4. spring rate calculator. 8l windsor drilled for 1/2 inch head bolts will need head bolt bushings for 5. 900 inch intake valve diameter. The cylinder head is one of the key engine components that u. 1(set) of 1998-2001 Ford Explorer 4 Bar GT40P Cylinder Heads Pair Mustang 5. But, my question is would using stock E7 springs cause my engine to not idle? I dont think it would but want to ask you guys. GT40P heads, magnafluxed to check for cracks, 3 angle valve job, resurfaced, new seals, new spring kit good up to . 50oz rotating assembly, hypereutectic silvolite pistons with coated skirts, moly low tension rings, aluminum performance bearings. The intake rockers are short while the exhaust rockers are very long, so the aftermarket makes compressors, but there's one for each. Changing Valve Seals and Springs in the motor A detailed look at performing a valve stem job with and without an air compressor. 84 intake 1. The GT40p's are probably the best bang for the buck. This kit contains higher rate valve springs and special retainers that will allow you to use a performance cam up to . gt40p springs | gt40p heads | gt40p headers | gt40p | gt40p cylinder heads | gt40p valve springs | gt40p cc | gt40p f150 | gt40p specs | gt40p head specs | gt40 ford gt40p heads (bristol ct) two 4 bar 5. Stock Lead Time Typically 5-6 weeks Kent Cams valve spring set Ford CVH turbo HD Ford offered a performance head that was a stock part on 1993–1995 Mustang Cobra models and pre- 1997-1/2 Ford Explorers and Mercury Mountaineers equipped with the 5. If you are going to stay N/A, have them shaved to up the CR. they are in great shape no cracks or rewelds etc. 4 Powerstroke New Cylinder Head Loaded HD Valve Springs. they have little port work done to them ,mostly gasket matching, stock valves and springs. After I got them back to the shop I applied brakleen to the outsides of them and then masked them off. To tell the difference, take a look at the castings on the heads themselves. This makes conventional headers very hard to use because of spark plug boot clearance. Now you can eliminate the hassle of having to change valve springs yourself. Any GT40 heads are better than stock heads on the mustangs. Like the title says, I know they are cheap online but I rather not wait. Mine came off of a 97 or 98 ford explorer. Basically they are the highest performing stock ford production head available for the 5. In mid-1997, the Explorer and Mountaineer 5. This Flo-Tek head has a long list of high-end features, minus the I've used the Ford Motorsport E-303 cam in a roller 302 w/ GT40P heads, Edelbrock Performer RPM intake, Edelbrock 600cfm carb, and a C4 auto. 0 ohv iron 302 sbf gt40p v8 cylinder head rebuilt - $345. , an installed height of 1. My engine is not stock its been built to run and runs so much better. 4L Cylinder Head With HD Springs is a direct replacement for your 2008-2010 Ford 6. Pair 5. Does anyone know if they will fit on my 72 mach1's 2V 302. the p heads are ok for the money if you can get them for $200 and then add another $150 for valve springs,and another $100 for machine shop to shave them flat there are better cams than the ford cams. One is 99094-1 and the other is 99097-1 both of which are crane part numbers. 1 Stock Ford GT40P * Flow data Edelbrock's Sure Seat valve springs are made of the highest quality spring wire and are precision-wound to exact specifications. com. if you have aluminum heads or any after market heads be prepared with any other installation requirements like studs, guides, roller rockers and in some cases like mine, a taller valve covers. It is measured from where the spring meets the bottom of the retainer to where it rests against the cylinder head. 0 cobra since it has the gt40 heads/intake already. Essentially, valve lift is the maximum distance, in inches, that a valve can rise above its seat. 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. ford edelbrock intake f4b $100. High Performance Valve Spring Kit for SB FORD GT40P. Its basic purpose is to allow the valve to be opened, and then return each valve to the closed position while keep it tight against the The cylinder head is one of the key engine components that u. 6L DOHC 4V aluminum heads Full race porting with complete cylinder unshrouding, coupled with our big valves, high rev dual springs, leads to one of the best “race only” heads Fully machined and assembled with mag-bronze guides, dual springs, titanium retainers, hardened locks, oversize valves, seats and race valve seals O Ring available for use wit. As I said, I did actually have to grind a fair bit of head to allow the header flanges to sit tight against the exhaust port. I've got the trick flow 2500100 springs on mine. This is going to have a variety of limiting factors, including the springs, the camshaft, and the piston head clearance. Rumor has it that the limitations of stock valve springs on both the GT40 and GT40P heads is 0. this is the price for one head. im also running the E303 cam would 1. Right now I am out of fuel (42 lb inj. O. Kit also includes valve seals and valve spring shims. Hello, I'm thinking of bidding on these heads. Fits Engine Type Kent Cams valve spring set Ford Zetec E Silver Top HD singles (set of 16) VS51. 46 exhaust Chamber Volume: 60 cc Intake Runner volume: 145 cc The stock GT40P springs must be upgraded when going to a longer-duration cam. 022" LOW - both measurements with the same valve locks and spring retainer to eliminate possibility of differences. This veteran Ford GT40P went back to Le Mans and won This is the story of how a Mark I GT40 managed to win Le Mans outright in 1968 and 1969 after more advanced GT40s stopped being competitive. check out CompCams or Anderson Ford,they have a line of nitrous cams In 1996, Ford used GT40 heads on Explorers, Mountaineers and Lightnings, until the GT40s were replaced in mid-production 1997 with upgraded GT40P heads. 250"; Max lift . 542” lift on OEM cast iron heads without machining. In 1996, Ford used GT40 heads on Explorers, Mountaineers and Lightnings, until the GT40s were replaced in mid-production 1997 with upgraded GT40P heads. Regular Ford GT40 iron heads aren't known for having the best valve springs either. ISO of valve springs for gt40p heads. Make Valve lift is a complex number, but it does impact airflow and is included in the spec sheet for many cylinder heads. This Flo-Tek head has a long list of high-end features, minus the How to Change Valve Springs. My engine is out of a 2000 Mountaineer. 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. My motor is a roller hydraulic 302. If you are going for cheap, the GT40P's are a good choice. 8/351W) - Trick Flow valve springs on GT40p heads? - I'm finally back to working on my 77 F100 302 and I'm gathering parts. Used. Use this valve spring calculation tool to enhance and fine tune your spring and cylinder head installation. Upgraded springs is a must, and the gt40p's are a vast improvement over the e7 heads of the later 5. They are designed for use on OEM heads when used in conjunction with their Performer-Plus, Performer RPM, and Torker-Plus camshafts. The valve spring is a crucial component to the valve train of your engine. Then I measured the distance from the valve seat on the head to the top of the valve stem tip and compared it to the same measurement on my old head where the installed height was correct and it's also 0. The listed price is for a complete pair. I have been all over the net trying to fugure out what retainers to use on my GT40p heads so i can use my crane valve springs I had a set of retainers but they made the exhaust spring installed height way to short and even my intake was a lil too short, bein just under 1. Standard heads include the Edelbrock EDE-60219, a cast aluminum head with a 60cc combustion chamber and a 1. . If I build my fuel system will the stock valve springs allow for more power? AFR 165 SB Ford Renegade Series Street Head The Small Port, High Velocity, Emission Legal Torque Monster. Popular upgrade for 86-95 mustang 5. One thing to keep in mind is that the ports on a 351 are larger (wider & taller) and eventually went to 2. No matter what you're driving, we have the right Ford 302 Gt40 Heads for your automobile CSI Automotive Sales, Service & Parts. They are better than the stock GT40P springs, but if pushing anything more than stock lift (0. Cylinder Heads, Valves & Parts / Valve Springs; Shop By. and 90mm LMAF at 13 psi) at about 6100rpm. but its a pretty big cam. The valve spring has sheared in half. Either way, I need to resolve this problem. All MHS 2V PI Cylinder Heads are sold outright with no core charge. 3 head, I'm trying to go at this fairly cheap I don't mind spending the money but I don't wanna spend thousands on parts as I'm only looking to make about 500 hp which I think would be fairly easy. This will assist in the build-up of the GT40 heads when it comes time to assemble them. 050, . this head is complete with new 1. Ford has them yank the valve cover, and a some point they notice that the exhaust valve on #8 is sitting about 3/8 of an inch below the cam. 02 intakes. I have not had a reason to pull the valve covers off yet to confirm what is in there for rockers and if those heads still have the stock valve springs or not because I have read this can be an issue with higher lift cams. 70's with slicks. $250. Now, TW170 heads with the same headers. I found a failure in a head gasket causing combustion gasses to enter the cooling system. How to Change Valve Springs. 550 lift, resurfaced - refurbished completely. I was talking to a friend about a set of GT40P heads he has and he was telling me that the stock springs are good to up to 700hp, how true is that and Here are the part numbers I have. 46-inch valve package, the Edelbrock heads stepped these sizes up to 2. be sure you use the measuring rod, and shim the springs as necessary (kit comes with all this) 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. ford explorer mountaineer 5. Its good to 6200+ rpms, I have had no problems. 030 over and square decked. gt40p heads and intake Thu Nov 04, 2010 3:04 pm I have a 89 lsc with 139000 on the engine has a rebuilt trans and b&m shift kit in it Im planning on upgrading from the stock E7's and h. 7 Rollers be okay with this setup??? also what springs would i need for the GT40P heads??? You might have piston to valve clearance issues with 1. Order Ford GT40 Valve Spring online today. FORD GT40P heads GT 40 P Mustang Explorer 40P Cylinder Heads GT40 P What Are GT40/GT40P Heads? GT40 heads are a factory small block ford head found on a certain vehicles. I was always fowling plugs all the time and now the plugs are a pretty carmel color. 460" O. check out CompCams or Anderson Ford,they have a line of nitrous cams agreed, the tfs spring kit is the best bang for the buck, both my brother and I used that kit, very inexpensive and simple to install. _____ GT-40P Heads Discussion; Make sure you change the valve springs on the heads, they are a little soft. Sold in sets of 16. Have a pair of rebuild GT40p heads, had them resurfaced and the valves seats cut. One thing you should upgrade on them is the valve springs. cam. The P heads are sweet and do flow better. 496 lift), and matching springs (~115 lbs closed?), 1. 0 L heads were revised and renamed GT40P. 4L Powerstroke PP-6. VALVE JOB, MACHINED & TRICKFLOW VALVE SPRINGS UPGRADED. 0 302 SBF HO