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heads alone will help some but would benefit from a cam and upper/lower intake upgrade also.
is the exhaust still stock? what gearing are you running in those diffs?
Hmm how are you running D60 front and rear. Are you sure its not a Sterling? VSS should be in diff...
Any way, use the search button. You'll get more luck also searching in the 87-96 F150 forum as the engines are the same.
Intakes are fairly limited, edelbrock makes an aftermarket one as well as a few others. 302 intakes will fit, but require an adapter to work on our 5.8.
Cam depends on SD or MAF. Does you truck have a MAF sensor on the air intake tube? It should being a 96. If not then cam choices are extremely limited.
Heads are gonna depend on your expectations and other parts you add. Tell us some more about your truck and what you'd like to get out of it. Also post some pics so we can see! Congrats and welcome to the forum as well.
Thanks for the warm welcome. I think the rear is out of a dodge 2500 (please forgive me). ARB lockers, 4in rancho lift, small body lift, trimmed wheel wells and bumper, oil cooler, K&N cone, bad attitude. Actually drives better than my stock 88. I dont need huge hp gains but stock numbers suck. I live in the rockies and run in the mountains alot. Also plan on doing some mudding as my town holds competitions every summer. Working on pics but i am a tech challenged red neck. Hoping to keep price around 2g.
gt40 heads, roller cam like 35-308-8 (think thats the numbers) edelbrock truck intake, headers and custom y pipe and 3" exhaust. the manifolds and stock y pipe are a huge choke point. you might start with the exhaust and see how it goes.
do yourself a favor and find out what gearing is in those axles. you are running a tall tire and with the added weight of 1 ton axles doesnt help what mods you do.
if you have at least 4.56-4.88 gears we can discuss heads and intake and cam. if your running anything less you will be throwing money at the motor with gains that you wont be happy with. TRUST ME
my bronco is an easy 3tons with 35's and 4.88's. 5.8 only has edelbrock efi truck intake and headers with 3" exhaust and I am really happy with it.
You're best bet is to check gears in the axles and maybe swap to a higher set. With 37s you should at leaspoweve 4.56 or that's why you don't have power.
You need to consider replacing the factory exhaust and go ahead and do a six liter tune up. Look it up on here. Id reccomend rebuilding bottem end and stroking it to get more torque for those massive tires.
I had a machine shop quote me 1900 for a 393. I had to pull and reinstall motor tough.
correct i would agree on that price. whats not in that is upgraded heads cuz you would need them figure 650-1200, proper cam for the stroker, intake because the 5.8 stock intake sucks and then some sort of computer upgrade to run it all properly. most the guys that have done it on her properly spend close to 5k.
would love to go this route of course dont get me wrong.
honestly with all due respect to the previous owner, i dont believe he has any idea what he has. I would suspect a sterling 10.25 out back or it could have a D60 out of an econoline van from i believe 92+ which had the tone ring on it.