I've got gt40p heads for it I'll be running, and can't afford better . $930.00 + $55.00 shipping. Ha! 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! Theres many options available for a little more power. When I purchased my "brand new" set of GT40P's, I bought them from an Mustang specific machine shop that used to exist called Central Coast Mustang. Buy the lifters for peace of mind now and hopefully for the duration. Its NA but makes use of AFR heads and some other aftermarket goodies. 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. The reason for this is that we're actually replacing mildly worked E7TE heads. this is the price for one head. SB Ford GT40 Drop In Valve Springs Kit, Hyd Roller w/ Stock Cam, .450" lift and below. With no other changes we gained 25 hp using factory iron heads. In less than an hour, we were ready to test. If you're running a stock cam, 1.7 rockers will work perfectly. Over $2050 for the 165/185 renegades. We didn't increase the valve size, although we did have to add Manley valves to get the proper spring-installed height. Can anyone give me a little feedback about a '99 Explorer 5.0, and tell me if it's my answer. Tim's junkyard refugee survived the beating and we had a bitchin' story. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more! Consider having the head's intake ports matched to the intake manifold gasket. The hardest part of swapping the cam was just getting the timing cover off and back on again. Can I run the new cam with the same roller hydraulic lifters or do I have to change the lifters too? AFR 165cc 58cc Heads. Actually, making around 240 to 250 hp with a near-stock Windsor 302 will feel pretty good. Compare. #1:::Throw out all your Magazines that suggest what to do! Also, you'll need to get a steel distributor gear to replace the iron gear that is currently on your distributor. HiPo manifolds and Ill be good. (A starter is a motor, windshield wipers use a motor,electric windows use motors) Any one uses that terminology in my shop will be corrected once, only once. 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. Test 1: 750-cfm carburetor, dual-plane intake manifold, and stock camshaft. This website is using a security service to protect itself from online attacks. The GT40P cylinder heads had a small combustion chamber ranging from 58-61cc while the GT40 heads had a 63-66cc combustion chamber. Richard Holdener 240K subscribers Subscribe 63K views 1 year ago WESTECH PERFORMANCE GROUP LOW BUCK, GT40P 5.0L HEADS-CHEAP &. We then dyno'd the car without the fan to get some consistency and were rewarded with a peak of 316 hp at 5,500 rpm, and 348 lb-ft of torque at 4,000 rpm. I am very happy too. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. $700.98. The heads also required some machine work, including screw-in studs, guideplates, and widening the spring pockets for bigger valvesprings. I have heard this rod bolt weakness myth for years but have yet to have a single problem with them in any of the SBF engines I have pounded on for the last 30 years and there have been lots of them. 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. This is needed for the steel roller cam. But dont think that adding a bigger camshaft will make more power. I don't need tons of power to enjoy the car. With the GT-40P heads you will need to back off the timing a couple degrees and bump up the fuel pressure. Instructions on porting the GT-40p heads here. With gt40p heads and 289 hipo exhaust manifolds changing sparkplugs is the same as the original 302 heads and manifolds, I use the spark plugs that are recomended for the explorer with gt40p heads and you can use straight or angled boots. Once you get into the FoMoCo aftermarket aluminum GT40s though, all bets are off. Because of this, your tuneup will probably need to be modified. As with Chevrolet's small-block engine, the aftermarket has had dozens of years to expand the range and reduce the cost of the parts they offer for this engine. If you have a early 351W ie pre 76 it probably . The GT40P heads had a small combustion chamber ranging from 58-61cc while the GT40 heads had a 63-66cc combustion chamber. But what we were most impressed with was the solid gain in torque over the smaller Voodoo cam from 3,500 and up. I was looking at putting on the GT40P heads on. I'm using the Trick Flow stage 1 cam with 1.7 roller rockers. Actually the regular gt40's in either aluminum or iron are the good ones but the gt40p's are only a slight improvement over regular 302 heads. K.S. It took him and yours truly eight hours from start to finish, using air tools and a lift to gain access to the header flanges. 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. Beyond the engine's amazingly good appearance, Moore had a couple of good reasons for choosing this engine. I got a set of AFR heads , night and day. K.S. Test 2: Changed to the smaller of the two Lunati camshaftsno other changes. Just got through porting one of my gt40p heads today. Joined . Stock valve sizes? The asterisk HP differences are calculated using Test 1's 294-hp peak. If I get different urges later, Ill pursue those then. Performance & security by Cloudflare. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. just curious. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Part of this reason is due to its inherent strength and simplicity, but a lot of it has to do with how little Ford has changed it over the years. 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. If I remember right, non of the GT40P's (later models) had the thermactor smog provisions. 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. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. Pride is built, in your garage, with your two hands. Save narve00 The later model distributors had a different diameter shaft than the earlier ones. If the head bolt holes are 1/2" or slightly larger, ARP makes the washers and can be sourced from Ford Racing or ARP through a speed shop or Summit, Jegs and PAW among others. The MPH was there to run a little better but the local track is about terrible. 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. In an effort to preserve the history of the Early Fox Era, FEP covers the following vehicles: 79-86 Mustang and Capri, 84-86 Mustang SVO, 78-83 Fairmont & Zephyr, 83-86 LTD & Marquis, 80-88 Thunderbird & Cougar, 82-87 Continental, 84-92 Mark VII, 81-82 Granada. The gt40p head is considered the best OEM 302 head made. I had a set of 69 302 heads I ran for a while . What would be the best cam and springs to use for these heads in a 302 Windsor? Boy, were we surprised with the results. These timeslips are from 1280' above sea level. Best of all, no machining is required to install these on your stock cast iron heads! You will have to get special headers to fit these heads since the spark plugs are angled differently than normal 5.0 heads. There are caveats to this plan, however. . The headers will improve this airflow throughout the entire rpm rangeadding more torque and horsepower. Yeah, out of a bolt on upgrade, you'd probably be looking at 260-280rwhp ish with supporting mods. I have a very good running stock 1981 302 in a F100 short box. 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. You should be able to get away with a 150 to 200 horsepower shot later, but it's best to start out small and work up. There are literally a dozen or so camshaft companies that offer a mild hydraulic roller cam for a 5.0L Ford. Holten runs the factory fan, but he had removed it when he ran the 12.63. Shop by category. 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. AFR 165 Heads | Have options for pedestal mounted rocker arms or stud mounted rocker arms. That's a 40 per cent increase in power from a simple head and cam swap, and one seriously happy Mustang owner! An aggressive cam will wake it up a bit. The GTp heads are like GT 40's with smaller combustion chambers and the spark plugs are relocated for a more efficient burn. The reply has so many assumptions that I cant even assume to know the answer. 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. This is what I recommend to everyone who is doing a budget 5.0 build. A forum community dedicated to Ford Mustang owners and enthusiasts. Let us explain. This needs to be removed and different exhaust valves, retainers, and valve springs added to turn this into a decent street head. I've not seen a set of longtubes that have an issue with GT40P's, either. The GT40P heads flow a lot better than stock 351 heads. There are a lot of variables that must be addressed to give a better estimate, but a good basic estimate is 20-40 HP at the crank. Holley 670 street avenger carb. Compare. This is just a quick overview of the changes that need to be done. 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. We also discovered some issues with the GT40P heads that required changes, so we added valves from Manley that eliminated the exhaust-valve rotators and allowed us to set the proper valvespring installed height. 302 .030 over with; Scat Forged Steel Rods, SpeedPro pistons and rings . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Install a "wet" nitrous plate system (which carries both nitrous and fuel) onto the intake manifold and jet it conservatively for a 100 horsepower shot. Eldelbrocks Air Gap intake manifold should work well with the combination. 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. So . 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. Ported Hurricane Single Plane and custom 750 HP. Its funny no one mentioned anything about ignition timing or components, Your email address will not be published. I have to agree, the GT40P heads flow better than the GT40 iron heads. i know a guy who used to build race engines so he has all the right tools, how much would it help to get the heads ported and polished or anything else he could do to them. FORD GT40p 4 BAR HEADS IN GOOD CONDITION . Not sure how they would mate up to your existing exhuast, but otherwise they should work. Now we know why Dennis Hilliard of Central Coast Mustang is so high on these heads. If you know him, ask him. Well also assume that this engine is running stock exhaust manifolds. JavaScript is disabled. A solid 300-325 hp should be plenty and that's with good drivability and reliability as well. 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. These cast piston short-blocks are not quite as good as the forged piston 5.0L that came in Fox-body Mustangs, but the GT40P heads flow much better than earlier 5.0L heads. You can email the site owner to let them know you were blocked. That's a good combo in my book. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. The Fora platform includes forum software by XenForo. Rowe studied engineering, philosophy and American literature at Central Florida Community College. We heated the bottle to 950 psi and hit the button at 4,500 rpm. Test 3: Installed the larger Lunati camagain, no other changes. Application Fits 1979-95 Mustang 302/351 w/ OEM Small Block Ford Heads Overview. Maybe I'll think about a cam swap? I just read about this build on the corral.net. For a better experience, please enable JavaScript in your browser before proceeding. I used Lightning heads on my 302, (GT40 not P) with stock rockers on a flat tappet engine. .. i would not buy valves unless you need them amd would not switch to studs with these heads for your low hp . These are some of the best castings Ford ever produced for this engine, and are still fairly cheap and available used. Win or lose, if you buy the ticket you must take the ride. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more! The "P" heads flow better. any input is apprecciated:smartass: Thank you for the info, if all I have to worry about is the plugs then I'm in good shape hahaha. Again, assuming this is a nearly stock 5.0L with stock heads, the Weiand Street Warrior dual plane intake and 600 cfm carburetor, its important to not become overly aggressive and choose a big camshaft. 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. The action you just performed triggered the security solution. 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. E303 Cam advanced 4 degrees. This is the main reason why these engines are not modified as much as the small block Chevy. You'll also have to use your 289 timing chain cover since it has a hole for the oil dip stick and fuel pump. 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. I have managed to get 402 horse power from a 289 hipo natural aspirated. Scorpion 1.6 roller rockers. We've seen what happens from previous Ford experience when power levels above 500 hp tend to either pop head gaskets or saw blocks in half. 402 HP NA from a HI PO 289 isnt that mysterious of a feat to accomplish with todays SBF Aftermarket parts availability. There's not a lot of reson to use 351 heads later than '75 since they essentially identical to 302 heads except for head bolt holes. If you can find individual flanged headers like the obsolete MAC headers had, those worked really well with GT40P's. If you go with a diffrent cam, make sure you change springs, The Trick Flow kit comes with everything for around $130. Per a UEM tech support email I have the Icon IC736 is supposed to be good for GT40 heads when I asked about it. A COMP hydraulic roller cam we found works well with this combination. how much HP and torque? We did the installation at Holten's place of employment, Motorworks, in Longwood, Florida. Purchase any used aftermarket manifold for the 302 that is designed to function in the 3,500 to 6,500 power band. Take the assembly to a machine shop to have it balanced and install it in the block. 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. I'm also have the regular GT40 heads on my current build. Posted on May 07, 2014 by promarengine. 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. If you wanted to make your engine feel strong, these would be a decent investment, but they will require some modifications. hole size 302 is 7/16 and 351 is 1/2 When you purchase through links on our site, we may earn an affiliate commission, which supports our community.
Tom Shelly Cutting Horses, Tacos And Tequila Menu Canton, Ms, 2005 Lsu Women's Basketball Roster, How Many Grammys Does Janet Jackson Have, Leslie Mccullough Jeffries, Articles OTHER