302 with gt40p heads horsepower

This is not a criticism but instead consider it to be more of a heads-up. A good port job can set you back another $500-$1,000. What would be the best cam and springs to use for these heads in a 302 Windsor? The tube headers showed a gain of almost 100 hp! Compare. I plan on running a AFM b31 cam too which has relatively small duration for the intake valve. (its not their engine) Maybe I'll think about a cam swap? made more power everytwhere and 40 hp is respectable. Free shipping. The Edelbrock Performer RPM is a good choice, but Holley, Weiand and Ford Motorsport also have similar offerings. i have a 302 engine from a 1977 granada and i am wondering if gt40p heads from an explorer will fit on this motor. 69-70 302 heads (the ones with the heart-shaped combustion chamber) Any early 289 heads for the chamber size (but you'll have small ports & valves w/all that CR) Flat Ernie, Aug 27, 2011 SHARE POST #8 fordfan289 Member from indiana correct me if Im wrong but cant you use 351c heads and get the same thing as a 302 boss. I can tell you that with my 9.503 block, 22cc dished pistons and 64cc heads, I'm at 9.5:1 compression. The "P" heads flow better. As a final goal, we decided to bolt on a simple nitrous system and see if we could push this little small-block Ford to make some real power. This website is using a security service to protect itself from online attacks. Like I said lots of options. Nudge us with emails, and we'll make it happen. Central Coast Mustang sells GT-40P heads at a great price, making them a viable alternative in a market flooded with performance head choices. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. Once you get into the FoMoCo aftermarket aluminum GT40s though, all bets are off. I have a 302 Windsor V8 EFI engine that I converted to a 600 cfm carburetor with a Street Warrior intake manifold. I'm sure the dyno operator used some goofball correction factor to make the numbers look higher. The gt40p head is considered the best OEM 302 head made. You could run a thinner head gasket as well. You gave me the info I was looking for, and I really do appreciate it. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more! Joined . Here a comparison of different heads on a 302: I'm very happy with my GT40P. Thanks for the help, I was planning on puttingin roller rockers or at least new springs, and that engine looks great, hoppfully mine will look at least similar to that one of these days. The newer camshaft is designed for use with a soft bronze distributor gear, not the hardened steel gear used for older camshafts. Because of this, your tuneup will probably need to be modified. 87-93-95 Ford Mustang GT40P Engine Cylinder Heads REBUILT 302 351 GT40 SBF OEM | eBay Motors, Parts & Accessories, Car & Truck Parts & Accessories | eBay! Generally expect with a good cam, intake, roller rockers and a good ignition system to see around 300-350 max rear wheel horsepower, depending on what type of dyno you use. When combined with modern power-makers, such as nitrous, the 302 is more than capable of producing 400+ horsepower for little more than the cost of a stock engine rebuild. Torque on the other hand isnt something to write home about. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Plus you will need to drill all the head bolt holes out as the 351W uses larger head bolts. Don't let the fact that the iron GT40 heads have a larger exhaust valve fool you. While we've seen engine dyno tests performed with GT-40P heads replacing factory E7TE castings and resulting in a boost of more than 25 hp, we have reluctantly set our horsepower gain goal at 25 ponies, as well. Can I run the new cam with the same roller hydraulic lifters or do I have to change the lifters too? 1983 Mustang G.T. Ford's seminal 302 engine (later re-dubbed the 5.0) has been popular with budget-minded hot rodders for decades. #2::: Get advice from a reptile engine builder with experience(first flag for me is when somebody refers to an ENGINE as a MOTOR! E303 Cam advanced 4 degrees. I would like to know what heads, cam and intake manifold combination to use for the most HP I can squeeze out of that motor. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. 950.00 us a set and will ship . Would have liked to see a comparison done on the same short block using a set of decently-ported early non-Thermactor iron heads Tracy Blackford, 65 Mustang FB, 331 built with 289 H beam rods and 383W piston, 282S cam, self ported '70 351w heads, Dougs Tri-Y headers. Install a set of 1.7:1 roller-tipped rocker arms on the heads. With nitrous, this is easily a mid-11-second ride. Even with a stock Mustang 5.0 cam makes good power. For all of us interested in Gt40p heads. Different years can have different combustion chamber sizes but ffor the most part there will be no performance increases by going with 302 heads. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. You will have to address the 50 oz balance of the 5.0 engine by getting a 50 oz flywheel. Beyond the engine's amazingly good appearance, Moore had a couple of good reasons for choosing this engine. Yes- thank you. Hey all, I'm working on building a 302 with my gt40p heads. I added a link to it. The GT40 heads have thermactor holes built in to connect to the EGR/smog equipment whereas the GT40P heads use an external EGR connective system. A LOT of them do it these days. Check my post above. The heads also required some machine work, including screw-in studs, guideplates, and widening the spring pockets for bigger valvesprings. I'll save the effort and lighten my front end by 50# with aluminum. Real world data seems to show that GT40 or GT40P cylinder heads, assuming no other mods on your Foxbody, are good to add anywhere between 20-40 HP (over stock heads). With no other changes we gained 25 hp using factory iron heads. Build Thread 1965 Fastback Project "Racesteed". Not bad for off the shelf parts and a stock shortblock. Step 1. I'm an old school guy (289 in 65 mustang), and I'm just looking into the new 5.0 engine (roller cam) stuff recently. The heads that were used were also old C8 casting with 58cc chambers. We compare the GT40s to modern cylinder heads as well as other heads from the era. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. the engine is carburated of that makes a difference. Buy the lifters for peace of mind now and hopefully for the duration. BONUS TEST-FOUR DIFFERENT 302 INTAKES.. Install a set of GT-40P cylinder heads from a late 1990's Ford Explorer or a set of GT40 heads from an early 1990's Mustang 5.0L. (Image/Harrison Creamery). Runs well. We decided on a Powerstar kit from Nitrous Supply, owned by our good friend Mike Thermos, who was one of the original nitrous kit suppliers back in the early '80s. Dennis Hilliard of Central Coast says we can expect to gain three-tenths in the quarter-mile. Since the engine is nearly stock, we would want to choose a relatively mild camshaft with somewhat more lift and duration than stock, but again not going too aggressive. Because of this, your tuneup will probably need to be modified. Those heads were unported and had stock valve sizes! Note the head bolt hole issue, some GT40 iron heads had 1/2 holes, if not they will need to be enlarged. I had those on my car before I upgraded and they were nice heads. As a matter of fact, Central Coast has an '89 coupe with GT-40P heads that has run a best of 11.98 in the quarter-mile. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Depends on the budget. He'd be the best source. If you smooth out the bowls and exhaust ports and gasket match the intakes they should flow decent. Sponsored. The GT40P heads flow a lot better than stock 351 heads. The multiple-layer steel construction allows the gasket to conform to movement between the cylinder head and block while maintaining a good seal. well i finally did my first ever carb build, ive always been an EFI guy Black 1985 GT: 408w, in the 6's in the 1/8 mile. In mid-1997, the Explorer and Mountaineer 5.0 L heads were revised and renamed . The 2 heads are about the same when looking at the numbers with the GT40p heads having a slight edge. A forum community dedicated to Ford performance owners and enthusiasts. You keep stock drivability, and stock gas milage if you can stay out of boost. We gained 45 hp and 40 lb-ft of torque. The GT40 heads are a bit more versatile, working with the 5.4 and 6.8, while the GT40P (Explorer/Mountaineer) heads will only work on the 6.8 due to an interference issue. The hardest part of swapping the cam was just getting the timing cover off and back on again. The Fora platform includes forum software by XenForo. Very true about finding them at the local yards. Go for it if you get them super cheap and can get headers/manifolds super cheap as well but otherwise I'd say it's a waste of time and money. We did a quick search for hydraulic roller cams and landed on a COMP camshaft that looked promising. With the engine reassembled, we boxed up our second camshaft and headed for Westech's dyno. Per a UEM tech support email I have the Icon IC736 is supposed to be good for GT40 heads when I asked about it. The reply has so many assumptions that I cant even assume to know the answer. Im a different animal. We are offering a pair of original Ford Cobra 5.0 GT40 cast iron cylinder heads. Finally, we exchanged the Explorer's EFI manifold (which is a pretty good manifold in its own right) for an Edelbrock Performer RPM Air Gap intake and a Holley 750-cfm HP-style carburetor. Here is my setup. That said there are some better aftermarket options for heads also. 402 HP NA from a HI PO 289 isnt that mysterious of a feat to accomplish with todays SBF Aftermarket parts availability. 69.90.139.244 people can stop saying that adding aftermarket cam with stock heads is a waste of time. The GT40P cylinder heads had a small combustion chamber ranging from 58-61cc while the GT40 heads had a 63-66cc combustion chamber. Im running stock GT40 heads with stock 4.000 bore on cylinders and a Lunati cam with 256/262; Duration @ .050 (Int/Exh): 213/219; Gross Valve Lift (Int/Exh): .483/.499; LSA/ICL: 112/108. I love my setup and it is very strong engine. They suffered from poor aftermarket support up until about 15 years ago when it really came on strong. We took the heads to Mike Slover of Slover's Porting Service in Sun Valley, California, to do this work, plus some basic pocket-porting to improve flowespecially on the exhaust side. I think one of the finer traits of a true car guy, is the patience to put a prized car away and just let it sit for a while rather than selling it when life gets in the way. I was thinking the same but the enforcers are $647ea now so $1400 (inc tax) is the entry price for good set of heads. Best of all, no machining is required to install these on your stock cast iron heads! The '00 Ford Explorers and Mercury Moutaineers were factory equipped with one of Ford's better 5.0L motors. Now we know why Dennis Hilliard of Central Coast Mustang is so high on these heads. You didnt mention the car this engine is in, but lets assume there is enough room to remove the radiator and any other coolers and perhaps some or all of the front grille and/or brackets before the cam has sufficient room to exit the front of the engine. Thanks. ***Most important is theStupid question is the one that was never asked!*** You just want to keep it out of detonation. Find many great new & used options and get the best deals for FORD GT40p 4 BAR HEADS IN GOOD CONDITION w/ONE BOLT BROKEN at the best online prices at eBay! If you're not a header kind of guy, the repro 289 HIPO manifolds bolt up to the GT40P heads with plenty of spark plug room. The spark plug issue is almost a non-issue. Its funny no one mentioned anything about ignition timing or components, Your email address will not be published. If you have a early 351W ie pre 76 it probably . Richard Holdener 240K subscribers Subscribe 63K views 1 year ago WESTECH PERFORMANCE GROUP LOW BUCK, GT40P 5.0L HEADS-CHEAP &. On the power side, we selected 400 hp as an impressive but reasonable output for our small-block 5.0L Ford. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. I have a 5.0 from a 1992 Mustang in my 65. But the part about a cam replacement possibly being a labor intensive undertaking is correct. The Fora platform includes forum software by XenForo. So I've got the motor and heads already for my maverick project. Stock 1989 5.0L HO pistons will work if you can find them. I got lucky and found a complete Explorer GT40P engine online. Keep in mind that swapping camshafts is a fairly extensive effort. The longer duration created a slight loss of torque below 3,300 rpm compared to both previous cams, but beyond that mild loss of power, the bigger Voodo out-powered its smaller cousin, cranking out a peak torque of 355 lb-ft at 4,300 (a gain of 7 lb-ft over Test 2) and charging to a peak horsepower of 376 at 6,000 rpm. Be careful, I was once bitten by one of those reptile engine builders. P-heads have a smaller combustion chamber at 59cc, which will bump the compression ratio up on an otherwise-stock 5.0 engine. They were located in Tahachapi CA, and were sold with upgraded springs for $650.00, back in 2002-2003 ish. When compared to the new generation of performance engines on the market today like the 5.0L DOHC Coyote engine, your engine will not come close. The GT40 & GT40P heads had a few differences that are note-worthy, the most importantly being the bump in compression. could the gear of off the oil pump drive(i know they're DIS), for the explorer motor be used on his dizzy? You need to check. i have a question once i get the gt40p heads from the explorer truck can i also take the exhaust manifolds or headers and fit them in my 66 mustang:?:!?!?!? Using the manufacturer recommended springs for your camshaft are a safe bet. Through Central Coast you can have the heads fully prepped for your combination. However, theres a distinct possibility that I might pull all of my hair out if I see another in-depth article explaining how I, along with just over a billion other desperate humans seeking answers, need special valve spring split locks for my next tired Chevy build. But dont think that adding a bigger camshaft will make more power. These heads have been remanufactured using refaced reclaimed Factory Valves. Do you guys have part numbers for the spring kits? All manufactured using advanced CNC technology for the extreme durability and precision required of the modern canted valve Ford Small Block at power levels around the 1000 mark reached during recent competitions at the EMC and at the strip. Commonly referred to as Explorer heads, GT-40P iron castings are found on current 5.0-equipped Explorers. Building a 302-inch small-block to produce 400 hp is really no big deal, but doing. Tim's junkyard refugee survived the beating and we had a bitchin' story. Also, you'll need to get a steel distributor gear to replace the iron gear that is currently on your distributor. How to Build a Budget 383 Stroker Chevy How do I Increase Horsepower on a 440 Cylinder Head Specifications for a 1969 How to Get More Power Out of a 92 4.3 dragster engine image by Robert Young from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. Install a used set of 5.0L Mustang "shorty" headers, generally available at auto swap meets for a reasonable price. Cant wait to try um out. You can have your current 28 oz rebalanced to 50. 68 Mustang GT/CS Highland Green, PS, PB & Console, C Code w/C4 & 3.55 8 rear, If you aren't using the GT40P's stock, with maybe a spring upgrade and valve job, they aren't worth it anymore. Here is the lowdown on exhaust manifolds and VALVE SPRINGS. Actually, making around 240 to 250 hp with a near-stock Windsor 302 will feel pretty good. There was an article in Hot Rod magazine in the mid '80's where Jon Kaase was developing 351w packages. Long tube headers are a terrific idea, but you need to open up the exhaust side. We did the installation at Holten's place of employment, Motorworks, in Longwood, Florida. This kind of improvement may not seem like much, but the owner of our test car, Jamie Holten, runs in FFW Trophy Stock where three-tenths is a lifetime. Features hardened 4140 Chromoly retainers, valve locks, spring shims, a spring height gauge, valve seals, and instructions. Most of them are aware of what changes need to be completed. Holley 670 street avenger carb. Performance & security by Cloudflare. Dec 8, 2011. T5 with 3.73s. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. I wouldnt recommend reusing lifters though. Aftermarket headers, such as those made by Hooker, BBK and Competition Engineering, are better and are just as easy, if somewhat more expensive, to procure used. There are a couple of reasons for this suggestion. How much HP and torque do you think I. Add a distributor designed for a carbureted 302 but make sure to install the correct distributor gear for your cam. Once the headers are in place, then you can consider if you still want more power. Stock 93-95 Cobra shortblock (stock cobra cam), GT40X heads, 1.7 rockers, Edelbrock Performer RPM intake, Holley 650, and longtube headers. Start with any 302 block, but try to find one from 1985 and up since it will already have provisions for a roller camshaft. Sponsored. Your IP: $700.98. For a better experience, please enable JavaScript in your browser before proceeding. Do not ever, ever think about using the tube type manifolds. The entire front accessory drive and timing chain cover must be removed, along with the distributor and intake manifold. Not when you can buy a set of Promaxx or AFR Enforcer heads for $1000, that already have decent hardware included. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. GT40Ps have 58cc. The only one that's close, is #7. Aside from the cost of the nitrous itself, this setup should cost you little more than a stock rebuild using all brand new parts. T5z and 3.89 9" TL rear. I had a set of 69 302 heads I ran for a while . this head is complete with new 1.837 int valves and 1.536 exhaust valves. Its increase while significant is still only about that of a decent 351 w, hi im building a nastalgic car so im not going to drag race it but it must go ok ive got a 302 windsor basicly recoed stock but i want to run tunnel rams to go with the the3am would like to put choppy cam and replace the heads any ideas would be much apprecited thankyou, What is the stock head cc of a 1992 f150 302 windsor. Not looking for crazy HP. We decided to test both ideas, so we ordered two roller cams from Lunati: a shorter-duration cam that would deliver decent idle vacuum and maybe make around 320 to 335 hp, and a longer-duration version that might push the horsepower up to perhaps 350 hp. Headers and a camshaft will help but the engine really needs aftermarket 3/8 inch connecting rod bolts and aftermarket cylinder heads. Calculated compression to 9.8:1. Shop by category. Not sure about that but got some pictures of the cast iron explorer manifolds on a 302. However there are plenty of factory heads that with the help of an experienced machine shop can be great. The 5.0L with the GT40 head had a 9.0:1 compression, and the 5.0L with the GT40P head had 9.1:1 compression. Finding Gt40p heads at the junkyard is getting more and more complicated and if you want to upgrade the heads you have to take into account the costs of the machine shop and compare everything to a set of cheap aluminum heads. Just make sure it is a roller cam. No-option stripper- I like strippers. Anythoughts? He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. We've already been motivated to put this engine in a buddy's Mustang. by travis Sun May 03, 2020 8:33 am. Adding the headers may also require a slight increase in secondary (and possibly primary) jetting to ensure the proper air-fuel ratio, but thats also an easy tuning change. Consider having the head's intake ports matched to the intake manifold gasket. You didnt mention which cam you had in mind. Stock heads with a fresh 3-angle valve job, shorty headers, T5, 4.10s, stock Explorer intake and stock '88 GT short block with 140,000 miles on it and an E cam in it. Ported Hurricane Single Plane and custom 750 HP. We know what you're thinking--only two-tenths from an extra 45 hp? FORD GT40p 4 BAR HEADS IN GOOD CONDITION . Over $2050 for the 165/185 renegades. Click to reveal JavaScript is disabled. just curious. Common sense would suggest that with the heavy lifting complete and the old cam removed, by not installing the new roller lifters along with the camshaft could be asking for the possibility of trouble just a few thousand miles down the road. You didnt mention what camshaft you would be choosing or exactly which 5.0L Ford Windsor engine you are working with. The SUV indicated barely 120,000 on the clock, and after yanking the valve covers to judge the engine's condition, Tim Moore instantly made the decision to do the boneyard version of a smash-and-grab. If you're running a stock cam, 1.7 rockers will work perfectly. Test 2: Changed to the smaller of the two Lunati camshaftsno other changes. Ford Factory 5.0 Performance Cylinder Heads. Also, the spark plug angle makes it a pain. JUNKYARD GT40P HEADS-ADD 30+ HP TO YOUR 5.0L (FOR FREE?) These are a great head but do need some machining mods to make they really work well. They fill that spot between power and budget. '85 GT vert two tone (white on charcoal)white leather, http://www.facebook.com/groups/233213650060739/, http://www.summitracing.com/parts/TFS-2500100/, ascMcLaren & Motorsport/Grand Prix IV Capris, RHD and Other International/Export Models, Mods, Maintenance & Mechanical FAQs/Archive, If this is your first visit, be sure to One benefit gt40P head will have over other 80's-90's model heads, including the gt40 head, is that it has a smaller combustion chamber much like the original 289 heads. I went to a couple in Tucson and almost all the Ford vehicles that came with a 5.0 had the heads missing. If you go with a diffrent cam, make sure you change springs, The Trick Flow kit comes with everything for around $130. GT40P heads, what kind of performance do they give? It has underdrive pulleys, MSD ignition, Bassanni headers and forward exit exhaust. However, since Holten's car has an E303 cam, we didn't want the pistons and valves becoming too close, so we chose the 1.6 rockers. For a better experience, please enable JavaScript in your browser before proceeding. In order to make Coyote-type power you will need some expensive, high-flow cylinder heads with a short block that can withstand spinning in excess of 6,500 rpm. Both have very similar valve sizes, but the GT40P head has slightly larger combustion chambers for a small bump in compression and better flow. Last Edit: January 18, 2015, 12:05:31 pm by businesstrader Logged shaunp. this is the price for one head. Both swaps made more sense when parts were readily available at the bone yard for cheap. At the time, I was still running smog equipment in a 1994 Mustang GT, so I had them drill the back of the heads for the thermactor connection. If I remember right, non of the GT40P's (later models) had the thermactor smog provisions. 1985 Mustang GT Mild 331 4bbl 5 spd, 1985 SEFI LTD LX AOD. We will go into more detail on the head mods in a later story in Junkyard Builder, so watch for it. Hey Motorheadty,Like your comments,question for ya,I have a 92 convertible,just bought a 5.0 out of a 94 gt that was just freshened up top end,gt40p heads w/new springs etc for the new E303 cam,new FRP roller lifters,Crane 1.7 rockers,hardened push rods,double roller timing set,all put on a bottom end w/104000 miles,needless to say previous owner pulled said engine after 800 miles and now building a 351,I pulled engine down my machinest,putting forged internals in and bolting everything back together,I want to run about a 150 shot N2o,and iam going carb,wondering which intake would be best w/the 150 shot,heard that dual planes might not be the way to go? However, stepping up in the performance head market will set you back more than $1,200 for a decent pair of aluminum castings--and that's straight out of the box, with no porting. That's fantastic for the minimal investment we made. For the most part 302 heads and 351W heads are the same. Not sure how they would mate up to your existing exhuast, but otherwise they should work. This will cost additional money but is still worth it, in our opinion. thats after 3 hours of idling/midrange hits to tune the idle and part throttle . Really hurt too. With the GT-40P heads you will need to back off the timing a couple degrees and bump up the fuel pressure. Despite adding 30 degrees of intake duration, this cam improved torque throughout the entire test from 3,000 rpm on up. There are literally a dozen or so camshaft companies that offer a mild hydraulic roller cam for a 5.0L Ford. Not *as* good as the GT40p heads, but I'd prefer to not have to worry about exhaust fitment issues, or have a narrow range of what I can work with. Im new and Im currently building a 302 on a budget and want to raise compression without milling heads but by pistons and I want to get close to 10:1. For both the GT40 and GT40p heads, I STRONGLY suggest upgrading the valve springs. Ive bought wrecking yard SBFs and put 20 lbs of boost to them and spin them to 7000 and made 500 HP with several of them. Instructions on porting the GT-40p heads here. I've not seen a set of longtubes that have an issue with GT40P's, either. Weiand 7515 xcellerator intake. Definitely going to use my P heads. After we installed the heads and with the fan off, he ran a 12.46 at 107.9. Jeff Smith: It would have been better to know a little bit more about your combination, but the short answer is yeswith a hydraulic roller camshaft, assuming the lifters are in good shape and the roller wheels show no unusual wear, they can be re-used on a new cam with no danger of adverse effects. Sure, you could race-port the existing E7 castings, which many have done, but then you're putting quite a bit of change into stock heads. Its NA but makes use of AFR heads and some other aftermarket goodies. As you might expect with more duration, the idle quality dropped significantly but was still able to make 11.5 inches of vacuum at 980 rpm. Save narve00 The older pushrod engines just dont offer the same kind of power potential for their displacement and it all has to do with cylinder head flow. If you know him, ask him. +1 I would go with the regular GT40 heads. That's an improvement of 22 hp over Test 2. Its always refreshing to see a FORD getting a little face time in your column, even if its a tired 302 with no great expectations of setting the world on fire when the dust settles. They are more expensive than standard head gaskets, but they also do the job and are worth the additional money. JavaScript is disabled. I'm running BBK un-equal length shorty's, and I'm able to get all the plugs in, tight, and all plug wires on. As usual, there is much more to this story. They also have emissions legal heads as well. the springs are new stock oem ford. that is a healthy budget deal. Motor is going into a Ranger. A trip to Orlando Speed World provided us with updated quarter-mile times. Install a Ford Motorsport E303, X303 or F303 cam, or any of the similar units from Indy, Lunati or your favorite manufacturer. You can use the stock roller lifters with any size cam you want. GT40, GT40P, would be great factory heads. These are some of the best castings Ford ever produced for this engine, and are still fairly cheap and available used. The Fora platform includes forum software by XenForo. JavaScript is disabled. I must agree with Jeff Smith. I guess someone could just do a basic valve job and throw on the GT40 upper/lower intake for a cheap HP boost. Test 1: 750-cfm carburetor, dual-plane intake manifold, and stock camshaft. They work, but present their own challenges. Application Fits 1979-95 Mustang 302/351 w/ OEM Small Block Ford Heads These are some of the pictures I have showing the Explorer manifolds. I am very happy too. There are caveats to this plan, however. Advanced: Daily Deals; Help & Contact; Sell; My eBay Expand My . Yank a motor out of the junkyard, clean it up, add a camshaft, intake, and a carburetor, and see how much power we can squeeze out of it. For a better experience, please enable JavaScript in your browser before proceeding.

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