Actually, making around 240 to 250 hp with a near-stock Windsor 302 will feel pretty good. Every thing he tells you on this site is true. This is an older thread, you may not receive a response, and could be reviving an old thread. Joined . We started with a 120,000-mile 5.0L out of a Ford Explorer, removed the EFI and DIS, and pocket ported the stock GT40P iron heads with stock valve sizes. The Edelbrock Performer RPM is a good choice, but Holley, Weiand and Ford Motorsport also have similar offerings. 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. The HP DIFF column on the far right lists the horsepower difference between Test 1 and Test 3. We will go into more detail on the head mods in a later story in Junkyard Builder, so watch for it. 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. I'm sure the dyno operator used some goofball correction factor to make the numbers look higher. 1983 Mustang G.T. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. .. i would not buy valves unless you need them amd would not switch to studs with these heads for your low hp . Here is the lowdown on exhaust manifolds and VALVE SPRINGS. Ill do springs and a moderate cam and go for a good, dependable power plant. Not looking for crazy HP. HAD '82 GT monochromatic (red).black cloth HAVE Test 2: Changed to the smaller of the two Lunati camshaftsno other changes. I'd much rather be able to drive it at 8 or 9/10s of what it can handle. just curious. This pushed that little Ford to a peak horsepower of 503, and that was where we stopped. 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. The combination of this cam with your intake and headers will produce a very nice street engine. The results were a major increase in power throughout the entire rev range, with an increase of 60hp at 4500rpm through to a peak of 279hp at 5800rpm. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Very true about finding them at the local yards. FULL DYNO RESULTS. Through Central Coast you can have the heads fully prepped for your combination. Install a Ford Motorsport E303, X303 or F303 cam, or any of the similar units from Indy, Lunati or your favorite manufacturer. On the power side, we selected 400 hp as an impressive but reasonable output for our small-block 5.0L Ford. With the P-heads requiring pedestal-mount rockers, we also called up Crane Cams for a set of 1.6 pedestal-mount roller rockers. This test went so well that we were eager to see what the slightly bigger cam would do. Most of the time, GT-40 heads are worth a good 20-40hp over stock heads. The GT40 & GT40P heads had a few differences that are note-worthy, the most importantly being the bump in compression. An aggressive cam will wake it up a bit. You can have your current 28 oz rebalanced to 50. 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. We also added an Edelbrock Performer RPM dual-plane intake and a set of 158-inch headers with no mufflers. Scorpion 1.6 roller rockers. For 2018, the Coyote makes 460 hp. There are too many variables to add to this regarding aftermarket stroker kits or components. Pretty sure that was name, but I could be wrong. Stock 1989 5.0L HO pistons will work if you can find them. If you can get the mentioned GT-40 heads with studs for a good price, that would be good for you. In addition, the cam timing was designed for torque, with duration somewhere around 190 degrees at 0.050 with roughly 0.450-inch lift. They almost seem like flywheel numbers rather than RWHP numbers. The GT40P heads flow a lot better than stock 351 heads. hole size 302 is 7/16 and 351 is 1/2 Can anyone give me a little feedback about a '99 Explorer 5.0, and tell me if it's my answer. Hey all, I'm working on building a 302 with my gt40p heads. Test 1: 750-cfm carburetor, dual-plane intake manifold, and stock camshaft. 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. Win or lose, if you buy the ticket you must take the ride. Performance & security by Cloudflare. The cost of a new set of standard replacement roller lifters is very affordable at major retailers like Summit. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Step 2. But the part about a cam replacement possibly being a labor intensive undertaking is correct. Also, the spark plug angle makes it a pain. could the gear of off the oil pump drive(i know they're DIS), for the explorer motor be used on his dizzy? 68 XR7 & 68 M-100. $700.98. The engine never huffed oil out of the breathers, and the spark plugs all looked excellent. A good port job can set you back another $500-$1,000. Always the weak area in the 289 and 302 is the tiny 5/16 inch connecting rod bolts and the miniscule intake and exhaust ports. Rowe studied engineering, philosophy and American literature at Central Florida Community College. '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 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. The car weighs #2835 with driver. 68stang351 Founding Member May 16, 2002 850 Aside from the cost of the nitrous itself, this setup should cost you little more than a stock rebuild using all brand new parts. You need to check. Test 3: Installed the larger Lunati camagain, no other changes. 1 - 7 of 7 Posts. http://vb.foureyedpride.com/showthread.php?t=89153, http://www.facebook.com/groups/233213650060739/, 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 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. Or, you could invest in a new set of heads that would also do the same job but you can expect to spend quite a bit more money. The multiple-layer steel construction allows the gasket to conform to movement between the cylinder head and block while maintaining a good seal. We bolted the Ford to the dyno with a set of 158-inch long-tube headers and an 18-inch collector extension to help the low-speed torque, then we fired up the small-block. That's a good combo in my book. The tube headers showed a gain of almost 100 hp! Well assume it is a 5.0L with stock heads. A solid 300-325 hp should be plenty and that's with good drivability and reliability as well. Learn how your comment data is processed. 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. But what we were most impressed with was the solid gain in torque over the smaller Voodoo cam from 3,500 and up. It has underdrive pulleys, MSD ignition, Bassanni headers and forward exit exhaust. I've not seen a set of longtubes that have an issue with GT40P's, either. I got lucky and found a complete Explorer GT40P engine online. people can stop saying that adding aftermarket cam with stock heads is a waste of time. REMANUFACTURED FORD 302 5.0 COBRA GT40 CYLINDER HEADS. They suffered from poor aftermarket support up until about 15 years ago when it really came on strong. I'm new and I'm 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. Dennis Hilliard of Central Coast says we can expect to gain three-tenths in the quarter-mile. #1:::Throw out all your Magazines that suggest what to do! This will keep you from dropping your overall static compression ratio and losing power. Works on all factory cast iron E7, GT40, and GT40P cylinder heads! I was looking at putting on the GT40P heads on. The "P" heads flow better. I have a 302 Windsor V8 EFI engine that I converted to a 600 cfm carburetor with a Street Warrior intake manifold. Buy the lifters for peace of mind now and hopefully for the duration. SB Ford GT40P Drop In Valve Springs Kit, Hyd Roller w/ Stock Cam, .450" lift and below. Plus you will need to drill all the head bolt holes out as the 351W uses larger head bolts. The spark plug issue is almost a non-issue. Required fields are marked *. However there are plenty of factory heads that with the help of an experienced machine shop can be great. Now we know why Dennis Hilliard of Central Coast Mustang is so high on these heads. The action you just performed triggered the security solution. 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 wouldnt recommend reusing lifters though. We probably could have coaxed an even 300 hp out of this stock configuration, but with such good numbers, we decided to jump right into the first Lunati cam. (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 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. Yea. The 302 uses smaller 7/16" head bolts and your "P" heads may or may not require the step washers. I'm also have the regular GT40 heads on my current build. That's a 40 per cent increase in power from a simple head and cam swap, and one seriously happy Mustang owner! Build Thread 1965 Fastback Project "Racesteed". JUNKYARD GT40P HEADS-ADD 30+ HP TO YOUR 5.0L (FOR FREE?) For the most part 302 heads and 351W heads are the same. 302, GT40P Heads, E cam, 4 into 4, Holley 600, Mallory Unilite, Levy SD T5, 3.73, 15" Team III, firewall mod, trunk mod, trailer hitch, drivers foot box mod, front tow rings. 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. As noted, this is looking like hes building a 351 Lightning truck motor, which is a good way to go. Paying a premium for a set of GT40P heads or dumping money into some to get their performance to rival aftermarket is not for me. We also added a veteran Ford magnetic pickup distributor and used it to drive an MSD ignition system. Headers and a camshaft will help but the engine really needs aftermarket 3/8 inch connecting rod bolts and aftermarket cylinder heads. Weiand 7515 xcellerator intake. Keywords I added a link to it. 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! You will have to get special headers to fit these heads since the spark plugs are angled differently than normal 5.0 heads. This will follow the guideline of a 1.6 rocker baseline and factory bottom end 79-95 related 5.0L Mustangs only. Compare. THANKS VERY MUCH! If you dont feel comfortable doing this higher a pro. For additional insurance, we also added a set of ARP head studs, which are stronger and offer better thread overlap than factory bolts, which helps prevent pulling threads out of a used block. United Engine and Machine sells cheap but decent pistons that will do what you're wanting. I went to a couple in Tucson and almost all the Ford vehicles that came with a 5.0 had the heads missing. Cast iron GT40Ps as cast flow better than non-Ps due to revised plug location/angle. There was an article in Hot Rod magazine in the mid '80's where Jon Kaase was developing 351w packages. I'll save the effort and lighten my front end by 50# with aluminum. These are Ford iron GT-40P heads. 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. #3::: Do your homework,get quality parts,dont skimp. 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. Yeah, except those. a) ain't early and b) aren't 289 heads. However realistically, with the amount of money spent modifying the gt40p heads or even those older 289 & 351w heads, you could have even better performing aluminum heads. These are among the best of the iron Ford Windsor heads as they tend to flow much better than earlier castings. Holten tells us removing the fan is worth two-tenths in itself, which tells us the fan soaks up roughly 20 hp. Boy, were we surprised with the results. With. JavaScript is disabled. No-option stripper- I like strippers. Many years ago, a friend bought a used 2001 Mercury Mountaineer 5.0L that was equipped with a set of really decent GT40P style iron heads. Vehicle: 1972 2 door 302 maverick, 1986 5.0 stang gt convertible,66 mustang coupe, HEMI ram. 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. The only failures Ive had were timing chains and a couple broken rods in a mid 80s 302 with 200,000 miles on it that got about 35 lbs of boost stuffed into it when a pop off valve I bought on ebay failed. This is the main reason why these engines are not modified as much as the small block Chevy. The reply has so many assumptions that I cant even assume to know the answer. The later model distributors had a different diameter shaft than the earlier ones. Even with a stock Mustang 5.0 cam makes good power. $139.99. Along with the heads, we used MAC headers for GT-40P heads. JavaScript is disabled. SB Ford, GT40 .575" Lift Max Output II Drop in Valve Spring Kit, Hyd Roller, 140 Lb Seat. GT 500; Posts: 8496; Location: Brisbane . Purchase a set of flat top pistons (from Ford Motorsport, TRW or Keith Black) with machined valve reliefs and designed to provide 10:1 compression with a 59 to 60 cc combustion chamber cylinder head. Their weak point is that the rotator used on the exhaust valve is very thick. Small-block Fords and Mopars only use four head bolts per cylinder, so retaining proper head-gasket sealespecially with nitrousis a point that demands attention, so we ordered a set of Fel-Pro MLS head gaskets rather than a standard, composition gasket. Richard Holdener 240K subscribers Subscribe 63K views 1 year ago WESTECH PERFORMANCE GROUP LOW BUCK, GT40P 5.0L HEADS-CHEAP &. Yea. What would be the best cam and springs to use for these heads in a 302 Windsor? First, adding headers will improve power on the existing combination. 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. Install a used set of 5.0L Mustang "shorty" headers, generally available at auto swap meets for a reasonable price. A bone stock 2bbl early 351w with stock replacement forged pistons (9.0 compression) and dyno headers made 211 Hp . ***Most important is theStupid question is the one that was never asked!*** When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Commonly referred to as Explorer heads, GT-40P iron castings are found on current 5.0-equipped Explorers. The GT40P heads flow a lot better than stock 351 heads. 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. 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. Do not ever, ever think about using the tube type manifolds. I had a set of 69 302 heads I ran for a while . For both the GT40 and GT40p heads, I STRONGLY suggest upgrading the valve springs. Install a set of 1.7:1 roller-tipped rocker arms on the heads. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more! We are offering a pair of original Ford Cobra 5.0 GT40 cast iron cylinder heads. On slicks the car went some low 7.70s right at 90mph. 97% Positive Feedback . Install a set of 1.7:1 roller-tipped rocker arms on the heads. i have a 302 engine from a 1977 granada and i am wondering if gt40p heads from an explorer will fit on this motor. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I am sure you have increased the bore size and possibly even the stroke a bit and spin it up pretty high in the RPM range. The Fora platform includes forum software by XenForo. I bought a crate 302 from Downs Ford a few years ago that was producing 320 hp. T5 with 3.73s. If they are cheap enough, take them anyway. Not to mention, they will run circles around GT40P's out of the box. If I get different urges later, Ill pursue those then. But don't think that adding a bigger camshaft will make more power. 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. I love my setup and it is very strong engine. Assorted screwdrivers, pliers and vise-grips. The reason this new generation of Ford engines make a ton more power is they also enjoy fantastic cylinder heads and four valves per cylinder. There are literally a dozen or so camshaft companies that offer a mild hydraulic roller cam for a 5.0L Ford. Stock valve sizes? SB Ford GT40 Drop In Valve Springs Kit, Hyd Roller w/ Stock Cam, .450" lift and below. 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. check out the. Even with relatively small valve sizes of 1.85-inch intake and 1.46-inch exhaust, the P-heads flow much better than previous. I spin it to 6500 and thats about it. So . Free shipping for many products! I'll prob take a trip up there this weekend after scavenging the junkyards, thanks a million. Purchase any used aftermarket manifold for the 302 that is designed to function in the 3,500 to 6,500 power band. And remember ENGINES have been being built/rebuilt/modified for years. 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. All Ford Mustangs | Model Specific Forums, GT-40P Heads - 5.0 Mustang & Super Fords Magazine. Your email address will not be published. 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. We guarantee plenty of burnout action when you add GT-40P heads to your 5.0 Mustang. At the dragstrip, we gained two-tenths and 2 mph. Similar to regular GT-40 heads, the biggest difference between the two is that the P-heads feature a revised spark plug angle which extends the plug into the combustion chamber, putting the flame front close to the absolute center of the chamber, resulting in a smoother combustion process. Consider having the head's intake ports matched to the intake manifold gasket. Shop by category. 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. 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. 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. What did the heads flow? Choose a cylinder head before you install the pistons. 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. However, when we dyno'd the car before installing the GT-40P heads, the fan was on the car. Let us explain. Because its all been done time after time after. This website is using a security service to protect itself from online attacks. For all of us interested in Gt40p heads. We set the timing to 34 degrees and rejetted the carburetor to get our desired 12.5:1 air/fuel ratio. It's an 86 roller 5.0 engine that had a recent rebuild sometime in the past with keith black pistons, otherwise stock. that is a healthy budget deal. Its NA but makes use of AFR heads and some other aftermarket goodies. this head fits years 95-01 explorer mountaineer mercury mountaineer . I got a set of AFR heads , night and day. I have a 66 mustang with its original untouched 289 with over 140 k on it that Ive been running a blow thru turbo making 14 lbs of boost on for the last 5 years and its never given me a problem. Instructions on porting the GT-40p heads here. 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. These engines came with the GT40P head, which even with its small valves, offers really good performance. There is a better way. 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). You will have to get special headers to fit these heads since the spark plugs are angled differently than normal 5.0 heads. Despite adding 30 degrees of intake duration, this cam improved torque throughout the entire test from 3,000 rpm on up. . The only way to really make more power is to go with a stroker kit, blower and/or heads. Those are really good numbers. Advanced: Daily Deals; Help & Contact; Sell; My eBay Expand My . With the tuning finalized, the little cam made far more power than we expected, cranking out 328 lb-ft of torque at 4,200 and 294 hp at 5,400 rpm. 950.00 us a set and will ship . Horse Sense: The smaller valves found in GT-40P heads improve airflow velocity. 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. 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? I have to agree, the GT40P heads flow better than the GT40 iron heads. Took me 7 hours to do one head.but they cleaned up real nice. Long tube headers are a terrific idea, but you need to open up the exhaust side. Just make sure it is a roller cam. 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. 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. I have a 5.0 from a 1992 Mustang in my 65. Joined: Sun Mar 15, 2009 9:31 am. 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. 1985 Mustang GT Mild 331 4bbl 5 spd, 1985 SEFI LTD LX AOD. We gained 45 hp and 40 lb-ft of torque. Add a distributor designed for a carbureted 302 but make sure to install the correct distributor gear for your cam. The rest went very smoothly, and we reused the stock lifters and suffered no ulcers worrying about breaking in the cam. I'd get the gt40 setup, and put an s trim on it. Mac and Ford Motorsport both make a GT40P spacific header. Ford GT40P 302 5.0L 4 Bar Cylinder Head Assembly Pair w/ 1/2" Head Bolt Hole. While the heads were off getting a massage, we turned our attention to the cam timing. Gt40 heads/intake from a jy explorer, leave the . 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. 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. I was thinking the same but the enforcers are $647ea now so $1400 (inc tax) is the entry price for good set of heads. We heated the bottle to 950 psi and hit the button at 4,500 rpm. The GT40P heads had a small combustion chamber ranging from 58-61cc while the GT40 heads had a 63-66cc combustion chamber. For a better experience, please enable JavaScript in your browser before proceeding. 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. It turned out we were conservative on both counts. 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. Sponsored. AFR 165cc 58cc Heads. Have fun, be safe, enjoy. 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. That's fantastic for the minimal investment we made. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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. I plan on running a AFM b31 cam too which has relatively small duration for the intake valve. Those heads were unported and had stock valve sizes! the springs are new stock oem ford. Holley 670 street avenger carb. The gt40p head is considered the best OEM 302 head made. Central Coast Mustang sells GT-40P heads at a great price, making them a viable alternative in a market flooded with performance head choices. Early Windsors tend to have fairly restrictive exhaust manifolds, making the addition of a set of headers that much more efficient. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. 1983 Mustang G.T. I got a GT40P off the assembly line years ago. 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. 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.