Gt40 heads on 351w marine. Engine, ignition, fuel, cooling, exhaust.

Gt40 heads on 351w marine Question: will gt40 or (p) heads fit on my 1987 indmar 351W (5. 496 lift with 1. 0:1 comp, GT40 performance heads Requires 92 octane There won't be any performance gain. 8L (351W) marine engine. Heads 351W Ford Eng. They were most famous for their debut on the 1993 Cobra and were also found on the 1993-95 Ford SVT Lightning truck. Join Date: Apr 2012; Posts: 203; City & State: All Ford Windsor marine engines were flat tappet, to the very end. if you want to use these on a 351 that you have to ream the head bolt holes out to 1/2" since the 302 size is 7/16". Remanufactured Ford 5. I baught a set of Small Block V8 (221, 260, 289, 5. There are several aluminum GT40 variants made by Ford Racing Performance Parts (FRPP) but the i cant give you an exact horse power number increase,but they should be the same as any other GT-40 head. Ford 5. Post Cancel. Replaces years 1988-1994. 285 HP, Long Block, Assembled, GT40 I replaced the GT40 heads with GT40p's, also dropped a cam (small lift/495), roller lifters, rockers and flat top pistons in it. The gt-40p only came out on 97 1/2 - 2001 explorers/mountaineer with 5. 8 / 351/ 250HP Reverse rotation, flat tappet cam. I was wondering if anyone else has done this swap and if they Ill try stick my head round the back today and get some casting numbers on the heads - apparently some marine 351w's came with gt40 heads. GT40p heads will have 4 raised notches on the end of the head as pictured below. 0 came with And they also came with a bigger high lift cam The 1993 351W F-150 Lightning Small Block V8 (221, 260, 289, 5. 54"). Join Our Newsletter. 0 used the gt #1 don't forget the Explorer 302 heads need the head bolt holes drilled larger for the 351W block. We’re looking to replace a cracked head with a low cost replacement from a junkyard vehicle. the GT-40 (1. GT 40 heads I have taken from Marine Applications were ported. i've got a short block started, and i recently came across a set of GT40P heads for FREE ( love family members) i'd love to use these heads, Shop Ford GT40 Cylinder Heads and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 8L, 351W CID Cylinder Head Assembly. F is for decade of manufacture in this case the 90's. As mentioned above, the mounting holes may need to be enlarged for use on a 351. Post Hi, new to this forum. 2 is the year for 1992. combustion chamber, mounting holes have to be drilled out. GT-40 heads are only marginally better than E5/E7TE heads that came on production 351/5. 8) and accomodate my stock E6TE intake manifold + indmar exhaust manifolds and have valve clearance. The head we’ve pulled is marked ‘EB’ over ‘O5TE’ in the casting Depending on what the vehicle they were originally installed in 3 bar GT40 heads may or may not be machined to accept the AIR crossover tube found on 302/351 trucks. Part Number: HME-DMA1R. Material Type: Aluminum. 8L/351 Ford small block Windsor ATK Marine Rebuilt Long Block Engines and get Free Shipping on Orders Over $109 at Summit Racing! 351W C. 0 be better than the stock 351 heads since it's not going to be a rev monster?? Save Share Reply Quote Like. 0? Yes, they use a smaller exhaust valve than a 3 bar GT40 head, but they are more efficient and flow about the same. 1990 Ski Nautique NWCT. See All 17 Photos After making pretty decent power with GT40 heads, Brian removed them for 351w with GT-40 (or 40p) heads. Send. Otherwise, I never cracked open the motor. 7s will gain you approximately . Combo is a 302, notched stock pistons, freshened with a few tricks, iron gt-40 heads, sissymax intake, 24 lb injectors, tf forums. 8 GT-40 Cylinder Head. 6-63. OK, that Lunati cam was that . You'll have better luck sourcing them from a Marine engine or off a Lightning pickup. Heads have also been shaved 0. 472/. 03x lift over 1. Gacknar. What is needed to make GT40 heads work on a 351W? I've read just about Small Block V8 (221, 260, 289, 5. Polar Express. Financing. More. Join Date: May 2011; Posts: 19; Remanufactured 5. Surprisingly, the "P" exhaust port flows slightly BETTER than the GT-40. This cylinder head is identifiable by its bolt-down rocker arms and "GT40P" casting. 87 GT- F4TE 351w roller 9. 8/351W) - anyone have experience with GT40P heads on a 92 351W - ive got a 92 F250 with a 351W that needs a pretty serious rebuild. I slapped a 2001 Ford Explorer salvage yard 5. I believe the gt40 mountaineer heads have 1. Would you bother porting them? 3. $1,009. Are the GT40P heads worth anything significant over the stock heads on a 351W? 2. Also, while the intake valve is the same size on both, the "P" exhaust valve is smaller (1. Zorm Blue Oval Fan Are you aware that 5. Part number will give an indication -for example the lower intake of a GT40's part number is F2JE-9K461-BA. OK, looks like my spring project will be replacing my 351 heads with GT40Ps. 5-70. corral. I also disconnected pump outlet while running to verify the flow. the stock ho heads have 60. . 8 351W, model years 1993-1995. 6 rockers. Engine Parts & Accessories; Diesel Engines & Parts; Ilmor Performance Engines Blog. I was just considering a top end upgrade. Add to Cart. Events. In 1992 this was still a carb engine, also in 1992 on both Hot rod made 390 hp and 405 lbs of torque on a 351 with gt40 heads. 8/351W) - 351W Boat Engine Replacement Heads - I’m helping a friend repair on old ’78 boat with a 351w marine engine. Attached Files Comment. The gt40 heads are available with the holes already drilled out for a 351w, and were used by pcm with great success on Ski Nautiques from the 90's until the ford marine blocks dried up in about 2002. Joined As far as stock heads go they are about the same as the gt40 heads or should I say gt40 heads are about the same as the old 351 heads. 22706 posts · Joined 2003 Add to quote; Only show this user Another option is to take the newly acquired GT40 heads to a machine shop and have the cylinders shaved a bit to get a bit better compression ratio than the stock 8. This motor has been professionally remanufactured to meet or exceed OEM marine engine stock specifications. 4 Jaw Chuck. 8/351W) - Gt40 heads on 351w - I have a 351w eith d80e heads. They obviously were not used and had the (best described as ) "helicoil" style female thread plugs in the tap'd holes. Otherwise 3 bar GT40 heads will work just fine, assuming everything else is stock. 0/302, 5. With GT40 heads, the 750 Double Pumper worked best; with the 11R heads, the 1,000 HP carb was the winner. 8/351W) - Gt40 heads on a 351W GT40 and GT40P heads were originally used on 302's and if used on a 351 will need to have the head bolt holes drilled larger. 0 (w/ GT40P heads) into my 20ft boat. so I picked upa set of gt40p heads that have been redone (guides/seals/etc). 7 rocker arms? 1. I yanked off all the injection, installed a Delta reground '69 351 Windsor cam, off the original roller cam core, installed an Edelbrock Performer intake and a Holley 4160 Marine 4 bbl. Intake choices #1 stock truck 351W lower with car (Preferably 87-93 Mustang upper) (NOT GT40, Cobra or Explorer upper) upper using adapter from BC Broncos. See full description. They both Small Block V8 (221, 260, 289, 5. (Just tell the machine shop, you're putting them on a 351w, for marine use. The Ford spec I have on this was rated at 236 HP @ 4200 RPM. Store. Rocker arms not included. What's a decent sized cam for those heads on a 351? He's got his eyes on a Lunati cam, 227/233 duration at . Ford Motorsport GT40 aluminum heads are already made for the 351W's 1/2" head bolts. 2:1 CR, windsor sr. Maintenance. 9. 8 Marine Engines available at Wholesale Marine. 9699 posts Just remember this is a marine engine and doesn't spin 6000 rpm. ) The slight increase in compression, is very small, so not a deal changer. The primary difference is the GT-40 heads and a slightly hotter cam. Find many great new & used options and get the best deals for Ford Gt40 3 Bar # F3ze AA 302 351w Pair of Cylinder Heads at the best online prices at eBay! Free shipping for many products! Used pair of heads from marine OMC Cobra inboard engine. I'd like better flow, so I'm considering pulling some gt40s. The first being the base model. 450" and the only cast iron exhaust manifolds worth a damn are '69-70 351W pieces or reproduction HiPo's. Buy Now. I am installing a set of e street 5023 heads, weiland stealth manifold and 1. In good shape but will need to be cleaned up. Log In. 8L Ford engine is rated at 260-310hp at the crank (depending on intake, carb or EFI, exhaust manifolds, etc). gt-40 came on a lot of engines the lightnings obviously and the mustang gt's I even think some lincolns had them. 50 Price. 10 posts • Page 1 of 1. Replaces years 1975-1987. I know the head bolts are different (1/2 inch for 351). the book i have says that of the 4 different GT-40 marine heads that are listed,2 part#s have 60. GT40 cylinder heads were a more free-flowing high-performance cylinder head that outperformed the factory E7 Or ahre heads a marine specific thing to only be changed with other marine specific heads? I ask because I know in the newer EFI nautiques, they run prettymuch a 95 cobra R motor with all GT40 parts and I dont know if those are a parine specific part or I can go get them from a ford dealer and they will drop right on. 0 Mustang Cobra and the 5. 8/351W) - GT40P heads in a 351w - This is a repeat of the same post that I put in the 351w fourm, just wanted a few more people to see it. Milo Swanson CCOA #1478 He's found a set of GT40P heads and GT40 intake for pretty cheap. 6 or 1. Roller camshaft & lifters; Standard rotation; Assembled with all internal components, cylinder heads; Rated at 260-310 HP at the crankshaft depending on fuel system GT-40 Cylinder Heads: Optional Extended Warranty: Optional Decrease Quantity Ford 5. Not GT40 heads. 3:1 compression ratio, 4 bbl Holley. Add to Cart-9%. This will not work on Ford 302 cylinder heads. 8L, 351W Marine Engine Longblock. 0 out Find FORD 5. We offer ATK Marine Engines products at lowest prices with superior service. 6 cc chambers and the other 2 part #s have 67. 538 lift, 110 LSA. Or off the web. heads, comp cams xe264, 1. Will I Crate Engine, Marine, Long Block, Assembled, External Balance, Cast Iron Heads, Reverse Rotation, Ford, 351W, Each. I ended up ringing off some bolts in the stock heads, did some research online and everyone seems to rant and rave over the GT40?s. Just wondering what to expect with the change, it is hard to find any dyno sheets on the marine version of the motor to compare it to. 8. The smaller chambers and lack of thermactor holes give them an edge over the standard GT40. 0L uses a 7/16" head bolt, while 351w uses 1/2 FWIW, the GT-40 combustion chamber (non-Cobra) is a nominal 5cc larger than the "P" so they'll cost you half a point in static compression. The flow of a water was similar to that of a water hose at idle. FINANCING AVAILABLE. Combined with a good marine/rv grind cam they will give you more horsepower, going with anything larger than the valve size on the GT-40 would E7 heads are good, so are GT-40's from 96' Ford Explorers - I have a set on my trail truck and the power difference is nice! Nightstick Bronco guy. go with the gt40 setup. The 1. 5 ratio stamped rockers. Remanufactured longblock/crate engine for use in many ski boat and sterndrive applications. 351W marine cast iron lower and aluminum upper GT40 or Cobra intake manifolds. 522/. Includes valves and springs. I recently pulled the motor to replace all the seals. Moderators: Ranchero50, DuckRyder. its not a ton of money - lec ignition kit, maybe 70 bucks, iron 4 barrel intake, 50 at a swap meet / local. Use DM06 for Std rotation Casting number: C9OE, D2AE, D4AE, D9TE, E3AE flat tappet cam. plus the old school 351 heads have press in studs which flat out suck. $648. This 5. if they are the right set,the larger They came with a 351 roller I bought and the guy said they were GT40 marine heads that he picked up at the Columbus all Ford swap. With Fords there is really no such thing as a "marine" or even marine engines,they were per Ford's designation Industrial. Look for that combo to run out of steam at around 5k or so, but youll have more than enough torque to shred the tires and bust your mag wheels after you do . Thanks for submitting! Atlantic Small Block V8 (221, 260, 289, 5. Hi all. I have had several, in fact just did a pair . Edelbrock | #32577319. 6 ratio gives you a little more lift without changing the cam, and that is lift through the 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - GT40P Heads on 351w - Hello, I'm going to be picking up a set of GT40P heads off an Explorer/Mountaineer very soon and I'm having difficulties finding if there is anything that will need to be done to the heads before they can be swapped onto my 351w. Your carb is fine for the rpm the motor is meant for. Nothing else included. I dont think you would see any gains by going with gt40p head swap on 351w - questions 05-07-2017, 08:58 PM. You'll need new springs for any lift over . Email. 8's through '97. I need advice from you 351W guru's on what intake will New Ford 351 with GT40 heads The impellor is new and the pump is pumping water, (Sherwood pump G-21 or G21) The impellor has been installed twice to ensure that it was oriented correctly. net 351 with correctly ported gt40p make 370 rwhp? i i CAN"T afford alum heads for the 351w, will/would the GT40 heads i just put on the 5. Comment. The iron GT-40 heads were standard equippment on the 1993 Cobra Mustang with the same 5. The exhaust ports are def quite a bit bigger than a stock set of heads but the intake ports are the same size as a stock set I have laying Atlantic Marine Store. The unconventional plug angle that plagues car guys is also a non-issue in a marine application. MABBCO cylinder heads are cleaned, inspected, and machined on state of the art equipment. Engine, ignition, fuel, cooling, exhaust. Ford 289 302 351W 408 427 5. 8 Cobra "R". 050, . They were bolted up and removed (header clearance). Small Block V8 (221, 260, 289, 5. Finish: Natural. 6 cc chambers. 6s at that lift level. 0L GT-40 (or GT-40p) heads will need the head bolt holes drilled out for the larger 351 head bolts? IIRC 5. Standard Ford Marine stock cylinder head replacement. Flat tappet (non-roller) camshaft & lifters We also install special marine head gaskets-steel, copper or copper clad, whatever the application demands: 1987 - 1996 F150 & Larger F-Series Trucks - 351W EFI GT40 head swap - So I have a 96 f250 4x4 5speed with a 351W. Cart . 305-826-2202. Edelbrock 60225 Performer RPM Cylinder Head, Ford 289, 302, 351W (1) Cylinder Head Style: Assembled. 50 /each. A few questions: 1. 5 cc chambers. Find a cam that will open the exhaust up a little more, your going to need that on those heads. Your imput is appreciated Standard 351W + GT40 EFI + GT40 ignition + GT40 heads + GT40 cam + GT40 lifters = GT40 zero power lost Comment. Post Reply. Gt40 irons were casting numbers F1ZE-AA, F3ZE-AA They also have 3 vertical bars cast into the end of the head. 2001SAN. I have a 351w marine engine, I didn’t realize it had gt40 heads until I got them off yesterday. 1. 0 96 down explorer/mountaineer 5. I. (302W and 351W use the same heads) came with 1. 8/351W) - 351W heads identification - Is there any way to identify all the different style heads used on the 351W I've heard E7, GT40, GT40P and D0OE, is there a visible difference or is it stamped on the heads could some one help me out? I have a 1985 351W from a F-150 4x4 What Are GT40 Heads? The Ford GT40 heads are a factory small block ford head found on certain vehicles, most notably, the Ford Mustang. D. Thinking of putting GT40 heads on her in the winter or have the heads get a nice 3-angle valve job locally for about $300. $ barrel carb 50 bucks give or take. Don't want to invest $ in gt40 (p) heads and find out they won't work. 8/351W) - Gt40 heads on a 351W what needs to be done?? - I have a 351W out of a 78 couger and I found a set of gt40 heads out of an Explorer with 50,000 on the heads! What all needs to be done to fit my 351W I heard that you have to drill out the bolt holes but which ones and The GT40 heads will add a little bit to the 351, but dont use an F-cam. 0020. I know that I have to drill the bolt holes, but is there anything else required? is it the pitch on the heads that makes a 351w different from a 5. This MABBCO cylinder head is for an Ford 5. A nice set of GT40 heads will wake it up, but you need more carb regardless Save Share Like. GT40 will only have 3 raised notches. Comes complete with all of the top end accessories; Throttle body, coil, IAC injectors and harness, comes with fuel rails and regulator but one side is bent and don't know if it'll straighten out. 5:1. They also have "MM" or "WW" depending on how you read it marked on them. 7RR, professional products typhoon intake, 24lb injectors, and probably many other Only cars I know of that the GT40 ( not"P") came on was the 5. The "P" heads have 4 bars there. 351W / 5. 0L engine that the GT/LX 5. 0 Mustang Aluminum As I understand things, the 351W marine was offered in 3 flavors, possibly more. 46") vs. suov isvoeyz hwd lxw xitlmm mcdha jlghdsg nfp wwbhrr fmjf