Next 460 Mod
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Next 460 Mod
I have a 91 F250 right now. I will have about $300ish by the end of the month. I just put gibson headers along with a 3" exhaust. My choice is either F3TE heads, Cam, oversized injectors, or a chip. What would I notice a nice gain out of?
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From: Montana
I would get either a chip, an adujustable fuel pressure regulator, or a better air filter setup. the heads won't make to much difference and the computer wont like the cam, or injectors. Hope this helps some.
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Is it even worth tryin to mod one of these to be fast. When I say fast i mean less than 6 sec 0-60's and low 14's high 13's 1/4. I liked this do to dual purpose. Offroad power and some nice drag times. What 0-60 time would I be lookin at on a 91 f250 460, cammed, chipped, injectors, heads, headers, and exhaust.
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From: Montana
No idea on drag times, but I know that a built up EFI 460 would be a hoot to drive. To do it right you are looking at a lot of money. Cheaper mods will get you a little increase in power, For the heads you will have to have yours ported as there is no aftermarket performance heads for the EFI 460's.
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I think you would have to find a custom chip for that. The only chip maker that I found was Motivation. You give them the specifications of your mods that you do to the engine and they will program a special chip for you.
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From: AK
i just ported my F3TE heads. fully ported the exhaust side and did the bowls and port match on the intake side as they are already massive. there was a lot of work in reshaping the exhaust bowl short side radius. and those damn hardened exhaust seats are tough to grind, but they came out really well. i don't have access to a flow bench to tell you how well it worked, and it isn't installed or running yet. but it should flow gobs (technical term) more air than stock 
also put in a .490/.495 lift comp cam. and i don't anticipate any problem with the efi. i have done similar mods to lots of small blocks with SD efi and they purr like kittens and run much better than stock.
also put in a .490/.495 lift comp cam. and i don't anticipate any problem with the efi. i have done similar mods to lots of small blocks with SD efi and they purr like kittens and run much better than stock.
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From: AK
i should also share this:
i was talking to a ford friend about making a heavily modified 460 or 514/521 work with ford EFI. he has seen people make it work using a computer from a '94-'95 302/e4od truck. the 302 has the same firing order as the 460 and these 2 years are mass air and can controll the e4od, and are sequential efi like the mustangs. just get a shop to burn you a chip on the dyno to handle the extra cubic inches. and add 6 wires to your harness for the injectors (for sequential) and add the wires for the mass air meter.
you can run a totally streetable, yearround, docile, pump gas, clean idle, massive power 521 cid truck motor. with affordable ford parts.
fyi: he said dyno time with a custom burned chip is in the $400-$500 range.
i was talking to a ford friend about making a heavily modified 460 or 514/521 work with ford EFI. he has seen people make it work using a computer from a '94-'95 302/e4od truck. the 302 has the same firing order as the 460 and these 2 years are mass air and can controll the e4od, and are sequential efi like the mustangs. just get a shop to burn you a chip on the dyno to handle the extra cubic inches. and add 6 wires to your harness for the injectors (for sequential) and add the wires for the mass air meter.
you can run a totally streetable, yearround, docile, pump gas, clean idle, massive power 521 cid truck motor. with affordable ford parts.
fyi: he said dyno time with a custom burned chip is in the $400-$500 range.
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