Gt40 heads on 351w marine.

• Gt40 heads on 351w marine This includes the carb'd version, TBI version and Multiport version. 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, Apr 17, 2010 · I replaced the GT40 heads with GT40p's, also dropped a cam (small lift/495), roller lifters, rockers and flat top pistons in it. A couple Aug 13, 2004 · Another thing to look out for is marine sourced GT40 cast iron heads :evil: Click to expand Those heads will likely have bigger chambers than the standard ~64cc chamber found on the regular gt-40s. Standard Ford Marine stock cylinder head replacement. Buy Now. com May 8, 2020 · GT40 refers to the heads. 3. Posted on May 07, 2014 by promarengine. 1/2 or is that for a 351w. Otherwise, I never cracked open the motor. 8L (351W ci) marine engine applications, with Jan 17, 2003 · Small Block V8 (221, 260, 289, 5. Good luck. This cylinder head is identifiable by its bolt-down rocker arms and "GT40P" casting. Long story short, I came across a set of E8JL heads out of a boat with a 351W which had a cracked block. A few 351 GT-40/HO engines were marinized equipped with throttle-body fuel injection (TBI) and were rated at 310 hp (231 kW). 0? NGK Spark Plug Set - Replaces PCM - RP030007 PCM Spark plugs for 351's, GT-40 engines Includes 8 Plugs 285 HP & Up Carbureted Plug gap . 7 rockers, shorty headers, or trying to find a cheaper intake manifold. Replaces years 1975-1987 We also install special marine head gaskets-steel, copper or copper clad Jan 6, 2011 · Small Block V8 (221, 260, 289, 5. Dec 26, 2011 · Small Block V8 (221, 260, 289, 5. I need advice from you 351W guru's on what intake will be best for throttle responce, holding power/torque, and perform best at 2,500-3,500 RPMs. 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 . The ports are nothing like the GT40 heads; the valves are also small like the E7TE heads. Oct 21, 2007 · The only real difference between 351W heads and 302 heads is the bolt size. 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. (If anyone wants those heads, I have over 30 pair of new complete ones to sell). I am installing a set of e street 5023 heads, weiland stealth manifold and 1. 0 96 down explorer/mountaineer 5. Aug 13, 2004 · The 351 Lightning motor was a 351w with the GT40/Cobra induction peices. has any one else ran commander marine manifods with GT40 heads? Jun 8, 2008 · im confused, is it necessary to get any special kit when putting gt40 non P heads on a 302 becaus eof this 7/16 vs. Jul 9, 2020 · With Fords there is really no such thing as a "marine" or even marine engines,they were per Ford's designation Industrial. Feb 13, 2010 · FTE member Arctic Y Block has a 351W marine engine in his boat. Replaces years 1988-1994. Oct 26, 2003 · gt-40 came on a lot of engines the lightnings obviously and the mustang gt's I even think some lincolns had them. I am a yacht designer by trade and have been 3D CAD modeling for 27+ years. A few questions: 1. Post by cgrey8 » Wed Nov 30, 2016 10:40 pm Nov 18, 2005 · The only other cast iron GT40 I'm aware of that will fit a 302 block is the GT40 style cast iron M-6049-L302/L303 wich is a 351W head that is pretty popular to to swap onto the 302 block, but that's a whole different discussion. I figure that's high to mid 14's in a 4500# truck. I have a 1996 Ski Nautique with a 351w pcm motor. $400 is a good price for some reman freshened heads with new seats etc. There were a few HO ford (GT-40 heads) engines that were right rotation but they were carburated. 5-01 Explorers. The P heads come from a 302 c. 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. These were often spec'd at 300+hp and that just goes to show what this motor is capable of with the right top end on it. 84-inch) and exhaust valves (1. Jan 24, 2010 · I have read all about the the GT40 and E7 heads as a good upgrade. 0:1 comp, GT40 performance heads Requires 92 octane. $648. Or off the web. The machine shop can assemble everything for extra money. Anybody know anything about these? Only number he can give me from the heads are E8JLAA. The head cast number may or may not be visible under the valve cover but the head type (GT) will be. Remanufactured longblock/crate engine for use in many ski boat and sterndrive applications. 67 out of 5 stars ( 3 ) Jul 4, 2010 · Small Block V8 (221, 260, 289, 5. Post by cgrey8 » Wed Nov 30, 2016 10:40 pm Rebuilt Cylinder Heads for Ford Truck, Van, Auto, Marine – Cast Iron 351 5. Thanks for submitting! Atlantic Marine Store. is mech Jan 10, 2010 · thanks alot! i agree, that photo will be very usefull down the line. 0L engine that the GT/LX 5. Jul 13, 2005 · These are supposed to be a marine version of the GT-40 cast heads. Engines that come from the factory with GT40 heads are referred to at GT40 engines even though the heads are the only major difference. 0? i just want to have eveything to put some freakin gt40 heads on my Remanufactured Marine Crate Engine; 1988-1994 Small Block Ford V8 351W/5. I have the GT40 heads. They don't compare with an aluminum head, but they are still a good investment for a budget build on a 351. These heads have been remanufactured using refaced reclaimed Factory Valves. Dec 22, 2006 · 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. The block is a 351W. May 12, 2019 · 2) another option would be to order a remanufactured 351W engine with GT-40 heads from US (I saw some vendors at US by searching thru internet) The engine we have: PCM 5. Yachts/boats are great but my true passion is engines and a Indmar/PCM Ford 351 HO 285 HP Spark Plugs. Dec 27, 2008 · You should magnaflux the heads for cracks before doing anything else. Same question. with GT-40 heads. My mechanic is recommending dropping a standard 351 long block in to save time and money on a small block replacement plus extra costs of pressure testing heads, intake manifold and labour costs for rebuilding. and will fit but the mounting bolt holes have to be drilled out to 1/2" diameter. Long time Ford enthusiast. How to identify your GT40 heads look for a "GT" or "GT40P" stamp inside the head casting or a three-bar (GT40) or 4 bar (GT40P) stamped on the side of the head. 8 / 351/ 285HP Std rotation, dipstick in block, flat tappet cam. 2:1 CR, windsor sr. I think CC used the GT-40 from about 95--2002. 84/1. My '97 is still running strong but if my ecu were to take a dump I am wondering what my best option would be. 4cc combustion chambers Sep 28, 2015 · Pull the engine and strip the heads off. most 302 heads will need headbolt holes drilled for 1/2 Feb 10, 2014 · Greetings, I am considering a GT40 head swap on an EFI '88 351w. Nov 29, 2022 · In the marine genre of web sites, shop for heads for the Indmar 351W at 285HP. Didnt get to actually design them. 5-2001 explorers, just don't use 96-97 explorer gt40 heads F1ZE-AA if at all possible they have larger combustion chambers which are slightly larger than the stock E7 or E8 heads which you probably already have, don't get me wrong they will give you a hp boost just not as much as the p heads. 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. F is for decade of manufacture in this case the 90's. May 7, 2014 · REMANUFACTURED FORD 302 5. heads. OMC and Volvo used ford engine to a later date and migh have continued using them. Just look for 1. 8 OHV V8 (E7TE) Upgrade your vehicle’s performance with our Rebuilt Cylinder Heads for Ford Truck, Van, Auto, Marine applications. 6 rockers. Broncobowsher. May 16, 2024 · The GT40 cylinder heads found on Ford E-Series E-205 205cc 2. 8/351W) - GT-40 heads - ok guys i am needing a list of what all vehicles came with GT40 heads. I had stock GT40 heads stock shorty headers, GT40 Intake, 65mm tb, 204/211 dur cam, no roller rockers. 8 OHV V8 engine, these cast iron cylinder heads (cast # E7TE) are perfect for enhancing your Dec 1, 1999 · There was the inevitable search of junkyards and swap meets for the popular '69-'76 351 Windsor heads, with their slightly larger intake ports and valves combined with 60. 0 (w/ GT40P heads) into my 20ft boat. Aug 20, 2024 · Three lines on the head would indicate GT40 heads which didn't appear until the 90's. MABBCO cylinder heads are cleaned, inspected, and machined on state of the art equipment. 0 came with And they also came with a bigger high lift cam The 1993 351W F-150 Lightning pickup came standard with the iron GT-40 heads also Both used the same identical cylinder head So I say, bolt those on and enjoy Feb 24, 2012 · The 1993-95 Cobra GT-40 head is little more than a marine head with larger valves and ports. Our cylinder heads are: Bake cleaned and shot blasted; 3-angled cut on valve seats; 100% Aug 6, 2024 · Perfect, sort of. See All 17 Photos After making pretty decent power with GT40 heads, Brian removed them for Apr 9, 2017 · They were also fitted on the 351w (5. My DO8E heads I have for sale that came from my stock 240hp pcm 351w also make the same 240 hp rating. 0 used the gt-40 so that would be an easy one to narrow down. Only the Multiport was given the moniker of "GT40", in addition to the "Pro Boss" moniker (as seen in your picture). If I get the bolt holes drilled out will these heads work as a direct bolt on replacement? My other choice is to use Marine 3 bar GT40 heads. 0 Mustang Cobra and the 5. Join Our Newsletter. We are offering a pair of original Ford Cobra 5. Estimated 60-62cc combustion chamber, FMS stud mounted 1. Spoke with FMS/FRPP today and they said they didn't recognize the number but the casting number is visible in the pictures he sent. 8L; Standard Rotation; Flat Tappet Cam; GT40 Performance Heads; 285hp Rating Sep 15, 2010 · 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. Cylinder Head Style: Assembled Save 351w marine heads to get e-mail alerts and updates on your eBay Feed. 300 HP is fairly easy with GT40'sfor that matter even a set of mildly cleaned up early castings. Jan 7, 2014 · Since it sounds like you have the 351 GT-40 EFI (second picture), here are the specs: 310 HP if camshaft is replaced with SVO cam M-6250-B351 340 lb-ft of torque at 3200 RPM 8. Home Shop All 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. P heads are more common because they were on 97. 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 Jan 6, 2008 · The GT40 heads will add a little bit to the 351, but dont use an F-cam. May 16, 2011 · Aluminum Edelbrock Performer heads, stage 2 port work, 1. Jun 30, 2008 · RE: GT40 Heads More info "The 1993-95 Cobra GT-40 head is little more than a marine head with larger valves and ports. May 17, 2008 · Small Block V8 (221, 260, 289, 5. 8L engine will work in all Ford 5. I see expensive '93-95 Lightning truck GT40 lowers and have heard mention of an Edelbrock aftermarket 5. It had electrical problem and would not start and I wanted the extra horse power for footin. Economical because it is a common head. 0L GT-40 (or GT-40p) heads will need the head bolt holes drilled out for the larger 351 head bolts? IIRC 5. I was just considering a top end upgrade. 8 351W, model years 1993-1995. Aug 27, 2015 · Maintenance Tips, How-Tos and Repair. Jan 14, 2022 · What is needed to make GT40 heads work on a 351W? I've read just about every post on every forum and cannot find a definitive answer on what parts or work is needed to make it work and furthermore if the stock headers will still fit. im going junkyard hunting this next week. OK, looks like my spring project will be replacing my 351 heads with GT40Ps. vs. Only ones that had bigger were the Boss 302 heads and the 90's GT40 heads. 6 roller rockers which is what I would recomend for anyone who wants an easy 25-30 HP's out of their current setup. 522/. I'm about to buy a long block lightning marine 351 windsor from motorworks, it has the GT40 heads, and they cautoned me that the sparkplug angles are diferent fom the stock heads. 0 crate engine with the GT40 heads, B303 cam, and the GT40 tubular intake rated at 285HP. 8 gt40 heads rated to 310 HP eec-iv using speed density Tuning Marine Ford 351W GT40. Runs Holley 4 barrle 500 cfm I believe. 8L Ford engine is rated at 260-310hp at the crank (depending on intake, carb or EFI, exhaust manifolds, etc). Shop Cylinder Heads & Parts for Ford GT40 with eBay Guaranteed Fit. The 1996-97 models got the normal GT-40 heads while the 1998-2000 models got the revised Sep 27, 2009 · PCM 240 HP Ford 351w from 1995 Sport Nautique - Engine had 635 hours when pulled from boat. 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. 8/351W) - Redline Marine 351w - Saw a ad for a 351w redline marine engine. GT-40's 90 and up were 351 High Output motors, with GT-40 heads, 285 H. In the early 1990s, a 260 hp (194 kW) version and a high-output version that used GT-40 heads and the Holley 4160 marine carburetor was rated at 285 hp (213 kW). 5 ratio stamped rockers. 7/16" for the lil' windsor, and 1/2" for the 351. The flow of a water was similar to that of a water hose at idle. Aug 26, 2009 · Mine were all between 65 and 66cc, I have a set of GT40 marine heads that are 67cc. 538 lift, 110 LSA. The 1993-95 Cobra GT-40 head is little more than a marine head with larger valves and ports. Your E8 head is a 2-bar marine GT 40 head, different than the E7. Would like to do nothing but change heads to incease HP. As you are probably aware, ford made a whole lot of heads for 302's and 351w v8s over the years. rjrobin2002; Apr 10, 2024; Bronco Tech; Replies 9 Views 681. Roller camshaft & lifters; Standard rotation; Assembled with all internal components, cylinder heads; Rated at 260-310 HP at the crankshaft depending on fuel system The C9OE and D0OE ('69-'70 351w)castings have much smaller chambers and bigger valves and were the hot ticket back in the days before aftermarket heads (like the C5-C6 289 heads with 54cc chambers). 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. A special little secret is that the marine(OMC and Volvo Penta) GT40 heads come with severe duty Manley stainless valves and Crane retainers/locks and springs and can be bought super cheap because most people don't know what they are because they carry two unique casting numbers and markings that aren't in any Aug 9, 2023 · 351W marine cast iron lower and aluminum upper GT40 or Cobra intake manifolds. Speakig with the engineer incharge of the GT40 head design we discussed the usage of the DOOE intake port with the use of the old 260 / 289 HI Po exhaust port. The HO heads are factory Ford cast iron GT40 heads, which came on a few vehicles like the '93 Mustang Cobra and '93-95 Lightning. I'll let someone more knowledgeable than me tell you what the difference is between that and a high output 351W with GT-40 heads used in the early 90's (and, possibly, later I think). Send. Fits all HO Ford 351w engines like 285 HP Indmar 5. This will not work on Ford 302 cylinder heads. VEVOR Complete Aluminum Cylinder Heads FORD SBF GT40 289 302 351W Mustang 175cc. I know the head bolts are different (1/2 inch for 351). Question: will gt40 or (p) heads fit on my 1987 indmar 351W (5. Car will have be 5-speed Any help would be appreciated. The GT-40 heads average a 30HP increase alone, over the stock HO heads. Nov 23, 2016 · They also installed GT-40-type cast-iron cylinder heads, the tubular “tuned” manifold, tubular stainless-steel headers, larger intake (1. Ford Motorsport had come up with a tig welded tubular upper intake manifold, and improved cast iron cylinder heads designated GT40 for the Mustang 5. 8L) V8 in the Ford Lightning from 1993 to 1995. The p heads are a *little* better than the regular GT40's that came on the GT40, but not a lot- so you wont see the same bang for your buck by upgrading. 08" Intake/60cc 1. 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. D8 heads would have been introduced in 78 so they might be original to the engine. Oct 30, 2009 · is there even a such thing there is a guy that has a brand new 351 from a boat he says it is a 4 bolt main and gt40 heads said that is is forged steel crankshaft,rods,and pistons i can buy this engine for 300. Jul 22, 2013 · Is there such a thing as GT40 heads with 2 bar markings? I know about the regulars and P's being 3 and 4 bars but I have a set with 2 bars. P. Edelbrock 60229 Performer RPM Cylinder Head, Ford 289, 302, 351W. Apr 11, 2024. Gt40 irons were casting numbers F1ZE-AA, F3ZE-AA They also have 3 vertical bars cast into the end of the head. 0 GT40 cast iron cylinder heads. Anyway - couldnt find the casting number on current head - took valve cover off but just found something i cant lookup! its a 1974 351w. The head we’ve pulled is marked ‘EB’ over ‘O5TE’ in the casting Sep 7, 2016 · GT-40 heads are only marginally better than E5/E7TE heads that came on production 351/5. Sep 28, 2011 · Swapping out the freeze plugs is no problem, explorers from late 97 to 2001 had the p heads and 95-97 had gt-40, the p heads flow a little better than the regular gt-40 heads due to the smaller exhaust valves and slightly better combustion chamber, p heads will have 4 bars not 3 like the std gt-40, also the p heads have a different spark plug Mar 27, 2014 · Ford gt40 351 marine verse lightning. 46") vs. 0/302, 5. of the GT-40 heads. 54"). Nearly ALL small block 289/302 heads have the same sized valves. You can also get GT40 heads in non-marine systems. Nov 15, 2010 · Small Block V8 (221, 260, 289, 5. Sep 17, 2020 · These guys made 353fwhp/425fwtrq on a VERY mild 347 for a truck using the Very restrictive truck efi intake manifold that had the lower only mildly ported, stock twin blade truck TB with some basic ported gt40 heads. 0L/5. Oct 13, 2019 · If you have a gt-40 it is a left hand rotation engine. Ford had produced 11,563 Lightnings, and the intakes that were used from this truck are most commonly applied on the used car market. 8, PCM Pro Boss GT-40, etc. 0. 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. Add to Cart. 3 days ago · Crate Engine, Marine, Long Block, Assembled, External Balance, Cast Iron Heads, Standard Rotation, Ford, 351W, Each Part Number: HME-DMA1 4. 3 in the 1/8th in my Lightning @ 4500lbs. Apr 23, 2008 · He's found a set of GT40P heads and GT40 intake for pretty cheap. 450" and the only cast iron exhaust manifolds worth a damn are '69-70 351W pieces or reproduction HiPo's. That's '70 351 heads on an '84 Jun 4, 2020 · I just took the Gt40 heads to the machine shop to get them inspected, magnafluxed, and have the head bolt ports drilled out to fit the 351w. Not GT40 heads. This fact all by itself makes the GT-40 a good, economical head for 5. 8 / 351/ 250HP Reverse rotation, dipstick in block, flat tappet cam. Also, while the intake valve is the same size on both, the "P" exhaust valve is smaller (1. 035 EFI GT40 and Pro Tec Ignitions gap at . I’d really like to stay around no more than $400 (budget $ for right now), and I am debating on what’s more important, 1. The "GT40" was the multiport EFI PCM HO 351w and was always rated at 310hp (it was available 95-02). Oct 3, 2009 · 87 GT- F4TE 351w roller 9. 8) and accomodate my stock E6TE intake manifold + indmar exhaust manifolds and have valve clearance. (20 extra ponies over standard gt40). You'll need new springs for any lift over . 23:1 reduction transmission. Heads have also been shaved 0. from what i understand, the gt40p's are the ones that give everyone so much trouble with the headers not lining up correctly. Oct 17, 2008 · The heads on those later marine 351's sold by Ford Marine have the markings on the ends of them similar to the GT40's however, the number is E8JE-AA and later F3JE-AA. 54" valves, “GT” markings, and F3ZE/F4ZE casting numbers. I put down 238rwhp@4200 and 333rwtq@ 3400rpm. 8 Cobra "R". 8 Remanufactured Ford 5. Will that effect my truck or do I just eliminate mine. They have 2 bars on the side of the head, not 3 or 4 like the automotive Gt-40 and GT-40P heads. Remanufactured 5. 8/351W) - Gt40 heads, worth it or not? - Trying to figure out if a set of gt40 heads would be worth my time or if I should just work over a set of stock heads. Otherwise I have some experiece with a B cam and 1. 8L performance. 6 RR Ported Cobra Upper GT-40, (need to locate a 351W GT-40 lower) FMS 351w swap oil pan and pick-up Longtubes for 351W 3” x-pipe and cat-back. Locked; SOLD Ford 5. My stock gt40 heads are testing bad (leakdown test Forums; For Sale; Store Replace bad GT40 heads with Jun 10, 2007 · Nautique has used 351 ford blocks for most of their boats - The GT40 is a ford 351 - The 351 is no longer made therfore the change to the 350 chevy in recent years - -The GT40 designation on the motor is the model of the "heads" that are used Jan 23, 2019 · Because the 351W has larger (1/2 inch) head bolts than the 289/302 (7/16 inch), you need bolt spacers, available from Summit Racing Equipment and other aftermarket sources such as ARP, which enable you to install 351W heads on a 289/302 using the 289/302 head bolts. Like most, I'm sure, I joined out of a life long appreciation for all things Ford Racing. My friend(our old body shop manager) used to race a Granada and he always ran 351 marine heads because his class required a Ford ID number and they were superior to passenger May 3, 2019 · 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. They were realy for 302 351W marine engines later found there way into lightning trucks. 0020. 50 Price. Includes valves and springs. Jun 5, 2006 · C9OE 351W heads have the same valves as GT40 heads (iron) C9OE 302 heads have the same valves as E7TE's. It's not a military secret that E7 heads suck, and anything to help an engine breathe is an upgrade. Would you bother porting them? 3. 54" exhaust I can tell you that the GT40 heads and Performer intake would choke a 408ci, so if youre set on using those, then stick with 351 cubes. Replaced it with GT40. 8L, 351W CID Cylinder Head Assembly. Click on Discount Inboard Marine at the top of the page, go to cylinder heads, and you will see a pic. (Please note these are not GT40P Explorer heads). You could conceivably throw any of those heads on ( use the same on both sides of course) and still have the same 240 hp or so rating. 0 for Sale When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Most PCM and Indmar marinized 351’s were rated at 240 hp (179 kW). 0L Explorers and Mountaineers. Any marine head shop should have known the 351 marine engine should have GT40 style heads, NOT E7s. I got the heads at a good deal along with the pistons and rods, cam and lifters, and crank. Especially the GT40P's-which IIRC came on explorers, but had 7/16" head bolt holes rather than 1/2" (351 uses 1/2" 302 is 7/16"). Feb 16, 2012 · Small Block V8 (221, 260, 289, 5. The common upgrade to standard (non-HO) heads now on our boats are the GT40p heads, which came on '97-01 5. Oct 26, 2012 · I found the article in the July 95 Super Ford mag just says Motorsport Marine 351W with custom camshaft, forged steel connecting rods, GT40 heads, standard Cobra valvetrain minus valve rotators, stock was 300HP @ 4800rpm & 365 lb ft of torque @ 3750rpm. Opens Nov 9, 2023 · GT40P heads have the bad plug angles. 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. Casting number: E4AE, E9AE, F0AE : ATK-DMA1GTP Oct 3, 2011 · Hi, new to this forum. 0 heads, not 351W which I had wanted. 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. heads, comp cams xe264, 1. 0 COBRA GT40 CYLINDER HEADS. should the Jun 14, 2014 · GT40 heads info from a retired Ford Design Engineer. The "P" heads have 4 bars there. 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. regular GT40 heads were 96-early97 Explorers as well as the SVT and marine engines so they are avalible but not as common. Apr 14, 2010 · Post any info/questions regarding Nautiques. 7RR, professional products typhoon intake, 24lb injectors, and probably many other things I'm forgetting. Jun 26, 2024 · I have a 351w marine engine, I didn’t realize it had gt40 heads until I got them off yesterday. Nov 21, 2010 · I have a 87 Mastercraft boat with a Ford 351 Wnd. If youre rebuilding from scratch, pick some pistons that will get you in the 9. Power Plus is the 1. 8L GT-40 EFI (HO Pro-Boss) with 310HP Nov 23, 2014 · Hello. 00 complete if it is what it is if not i will keep my 94 model 351w and finish my There are two variants of these cylinder heads, one being the GT40 already mentioned and the other being the Ford GT40P heads. Engine runs great but needs a little more HP. It is rated 245 HP. eng. . I was wondering if anyone else has done this swap and if they Feb 11, 2017 · Is the only difference between the 302 and 351 heads the increased (1/2") bolts used on the latter. 8 gt40 heads rated to 310 HP eec-iv using speed density (apparently o2 sensors not reliable in marine exhaust). Production heads like the GT40's and GT40P's . Jan 25, 2006 · With that cam and desktop dyno ( knowing all aspects of the engine) - I put 417 to the wheels with ported Windsor JR heads, Performer RPM intake and matching carb. Remanufactured Ford 5. In the early 1990s, a 260 hp (194 kW) version as well as a "HO" (High Output) version that used GT-40 heads and the Holley 4160 marine carburetor was rated at 285 hp (213 kW). Apr 17, 2009 · The are also found on 4 bbl 302 and 351 Marine engines untill a later date possibly untill Mercury marine quit using ford engines. Seems the boat was a 2005 model that was involved in a fire, boat is a loss but motor untouched. Feb 25, 2009 · Since the mid eighties and up 351s came with E7 heads, the GT40 and/or GT40Ps are definately an upgrade even for a 351W. ABOUT THE GT40 INTAKE. The valve seats have been cut on a Feb 19, 2013 · The GT40 heads are for the 302, but if I have the mounting bolt holes reamed/drilled out they will fit the 351w? Same fab for the 'E7' head? The GT40p are a little better then the GT40, BUT will create some header/manifold to spark plug space issues? # RP030007- For high output Ford engines, including GT-40 (OLD PART #WL764) # RP030002- For PCM and Indmar Standard Ford Engines from 1975 on (standard output - up to 260 hp engines) (OLD PART #WL24) # WL45 - For all older Ford Marine engines to year 1974 Ford GT40 Cylinder Heads in-stock with same-day shipping. 050, . Starting a project to put GT40 cylinder heads on a 1975 351W! This video shows tear down and preparation for the new head! Apr 20, 2009 · I will be starting my 351w build soon and have a few questions. Strange that you say you have 1:1 trans. Ford part numbers are F3ZZ-A and F4ZZ-A. The 60hp increase comment was in reference to the base (240-255hp) 351w, not the HO (285-310hp). Are you aware that 5. Motor is described as 325hp 351w with Holley 650 4v marine carb, would this motor be usable in a truck or Jul 15, 2009 · The are also found on 4 bbl 302 and 351 Marine engines untill a later date possibly untill Mercury marine quit using ford engines. 351W / 5. 0:1 compression ratio range- assuming youre ok with running 91+ octane. Port volume just isn't big enough. The gt heads came without rockers - so Will my current pedestal rockers and pushrods work with the gt40p heads? Cam is stock at this point and I REALLY dont have the $ for flashy springs etc. 90 intake valves. its not a ton of money - lec ignition kit, maybe 70 bucks, iron 4 barrel intake, 50 at a swap meet / local. 0-10. Feb 2, 2016 · Forget the GT40 or 40P heads on a 351, you'll just be disappointed it still doesn't make enough power and chokes out at 5000 rpm. General / Other. Does anyone know anything about the F3JE-CA heads? Apparently they are GT-40 marine heads but aren't stamped 'GT-40'. Feb 13, 2008 · I slapped a 2001 Ford Explorer salvage yard 5. Your imput is appreciated Jun 24, 2006 · Only cars I know of that the GT40 ( not"P") came on was the 5. Motor has been redone some years ago with flat top pistons and light port work on heads and balanced. I'd like better flow, so I'm considering pulling some gt40s. GT will be GT40 heads, R will be E5TE and T will be E7TE heads. I'm new to this site and forum. I would expect a 15-20hp upgrade over the 310hp GT40 with a better cam and P heads. Are the GT40P heads worth anything significant over the stock heads on a 351W? 2. First of all I want to know if there is any way to get gt40p heads on the 351 thats going in my 87 fox. Ford 5. 8's through '97. So far I havent found a lot of lower intake options. Find many great new & used options and get the best deals for Ford Gt40 Iron 2 Bar Marine Cylinder Heads Redline Exhaust Manifold 302 351w at the best online prices at eBay! Free shipping for many products! Ford 5. You'll have better luck sourcing them from a Marine engine or off a Lightning pickup. GT40 heads are marked by 3 ribs on the front and back sides of the heads. this is the list i know of. standard 250 H. GT40 heads can be found pretty much anywhere you look. 045 TR5-1 V-Power NGK Spark Plug 7060 Premium NGK spark plugs are known for their reliable performance and superior anti-fouling characte Sep 15, 2019 · 1987 - 1996 F150 & Larger F-Series Trucks - 351W EFI GT40 head swap - So I have a 96 f250 4x4 5speed with a 351W. Would these be direct bolt on replacements? Sep 30, 2004 · All HO 351w's made by PCM (1992-2002) featured GT40 heads and were given the moniker of "Pro Boss". Part number will give an indication -for example the lower intake of a GT40's part number is F2JE-9K461-BA. Dec 11, 2008 · The gt40 not having it. 2 is the year for 1992. Rocker arms not included. to be more specific i have 95 svt cobra gt40 heads that i want to bolt onto my 5. There are several aluminum GT40 variants made by Ford Racing Performance Parts (FRPP) but the OEM GT40's and GT40-P's were both cast iron. like i said, the heads are off of a 96 mountaineer so these should be gt40 and not gt40p correct? this can be identified by the threes bars in the front of the casting from what ive read. 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. May 12, 2021 · Hi, Does anyone have any info on GT40 marine heads? I’m curious if they will fit a ‘96 351w truck engine? They are currently on a 302 marine engine. Set of 8. They had a GT40 5. regular GT40 are almost direct swap. I want a real hot cam that builds loads of torque at 2000-4000 The early marinized engines were rated at 220 hp (164 kW). Standard 260 hp heads have 2 ribs. Email. This was through an E4OD that probably takes 20-22% parasitic loss. 0L uses a 7/16" head bolt, while 351w uses 1/2" bolts. I am running commander marine exhaust manifolds. Surprisingly, the "P" exhaust port flows slightly BETTER than the GT-40. 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 Jan 15, 2019 · 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. Jun 8, 2011 · The iron GT-40 heads were standard equippment on the 1993 Cobra Mustang with the same 5. Head Casting #s: E5TE, E7TE. i would avoid the P heads. When you're at the machine shop ask for GT-40p heads. 9. 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! Apr 22, 2009 · Small Block V8 (221, 260, 289, 5. 72 roller rockers (516 lift) that did very well on a 351 with GT-40 heads (unported) and intake. 0 302 gt40 Nov 30, 2016 · What I know is that its 5. The GT-40 heads continued within the Ford Explorer despite the Mustangs receiving modular engines. Use DMA1 for Std rotation Casting number: E4AE, E9AE, F0AE : ATK-DMA1R: 5: 1988-1994: Ford 5. 84" intake/1. 8/351W) - Gt40 heads on 351w - I have a 351w eith d80e heads. 8:1 compression, hypereutectic pistons, heavy duty Ford truck connecting rods GT-40 high performance heads Valves: 1. Don't want to invest $ in gt40 (p) heads and find out they won't work. 8HO GT40. Jan 5, 2011 · I ran a 9. 8 GT-40 Cylinder Head. I had thought they stopped using that before 1990. GT40P heads casting number F77E-AA came on 97. Customer: got a 351w gt40 heads and a mild cam,,650 holley,, the engine is a marine, and is in a jet boat,, we cannot get the engine to go over 3500 rpms, last year we were pullin 4100, carb is set, oil is fresh, the engine has only 36 hrs on it, could timing be an issue?? starts fine, idels fine and 4 barrels are opening up, the dist. Massive selection from top brands on eBay. Due to a cracked block I'm replacing my 5. This motor has been professionally remanufactured to meet or exceed OEM marine engine stock specifications. I'm not sure what the different boat engines came with for heads, but mustangs (302W and 351W use the same heads) came with 1. Great deals. 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. 302 marine engines might have, but I only know 351w engines. This 5. I pulled them from a wrecked '96 Explorer 5. The GT40 heads were originaly designed for OMC marine before they went on Ford cars. 8L, 351W Marine Engine Longblock. Find a cam that will open the exhaust up a little more, your going to need that on those heads. The gt-40p only came out on 97 1/2 - 2001 explorers/mountaineer with 5. 8L (351W) marine engine. 60" Exhaust Pair For Mechanical Flat Tappet/Hydraulic Roller Camshaft 289/302/351W. In good shape but will need to be cleaned up. Nov 17, 2012 · The stock cam in your motor is actually an old marine grind so it should haul the mail pretty good, Ford had a 351 crate engine you could buy up until a few years ago that was essentially what Mercury Marine used, a stock 351 bottom end with cast iron GT40 heads, the HO cam and a 4bbl intake that made 340hp. I also would like a suggestions as far as cam and intake goes. From my searching I have found these to be 5. Nov 30, 2016 · What I know is that its 5. This MABBCO cylinder head is for an Ford 5. Apr 24, 2018 · Small Block V8 (221, 260, 289, 5. Unless you score some F-150 Lightning or Marine GT40's, the bolt holes will need to be drilled out to 1/2"- Not a big deal. I recently pulled the motor to replace all the seals. Jul 7, 2006 · The heads also have 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 a78 SN withe the RR 351 and I am looking into buying a set of GT-40 or GT-40P heads. Sep 14, 2018 · Supposedly the GT-40p are a little better out of the box, but they have an odd spark plug angle that makes fitting headers/manifolds/exhaust a bitch. the GT-40 (1. Its not to be confused with the carb and TBI versions of the HO 351w (which had GT40 heads), which were rated anywhere from 285 to "300+". Jan 29, 2021 · With GT40 heads, the 750 Double Pumper worked best; with the 11R heads, the 1,000 HP carb was the winner. Ford GT40 Iron 2 BAR Marine Cylinder Head F3JE-CA 302 351w Mustang Explorer 5. GT40 is Ford nomenclature. We’re looking to replace a cracked head with a low cost replacement from a junkyard vehicle. I also disconnected pump outlet while running to verify the flow. $ barrel carb 50 bucks give or take. A bore, hone, piston, ring, balance, and bearing kit assembled will be $1,500. 30hrs since new. Specifically designed for the Ford 351 5. Or how does that all work; The folks who installed the GT40 heads said some heads have the Smog Sys air ports and some don't have them; one person who did the GT 40 install in his Bronco said; "GT 40 heads I have taken from Marine Applications were ported. Nov 19, 2010 · Actually the GT40's are "probably" a better head than any of the normal production heads. What do GT40 Heads buy you? Sep 27, 2011 · A marine engine typically uses a regular production 351 shortblock but with GT40 heads, a marine grind cam which is also a good automotive RV grind, and marine specific intake and exhaust manifolds and water pump setup. They also have "MM" or "WW" depending on how you read it marked on them. 8/351W) - 351W Boat Engine Replacement Heads - I’m helping a friend repair on old ’78 boat with a 351w marine engine. Yes if you should have the gt-40 heads as standard they have 3 bars on the end of head for idenification, If you can't source one you can go with the p-heads they have 4 bars out of an explorer and drill out head bolts and install brass freeze plugs to fit on the 351, if you cant source that head you can go to the std low hp e5-te head which has 2 bars or no bars but you'll reduce hp by about Pro Boss means that it has the GT40 heads and Pro Tec computer ign. i. They’re higher performance heads than the standard 351w heads. The GT40 intake didn't come stock on any Ford vehicle except the 93’-95' Lightnings. lddr jxfdqo xygs rvuau vjtb jcefdd yor ksqtokdf ktsm euc