converting from efi to carb
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Joined: Aug 2003
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converting from efi to carb
hi shortly i will be tearing my 351w out and puting in a 460 carb 500hp engine in my 88 bronco.
...http://www.fordcobraengines.com/460_500lbs..htm what are some things i have to keep in mind when swaping to a carburated engine? i am aware of the tranny rearend driveline all that good stuff new raditor ect........... hmm will i have to do any reinforceing of the frame or anything? im looking for any helpful tips and suggestions. thanks 
...http://www.fordcobraengines.com/460_500lbs..htm what are some things i have to keep in mind when swaping to a carburated engine? i am aware of the tranny rearend driveline all that good stuff new raditor ect........... hmm will i have to do any reinforceing of the frame or anything? im looking for any helpful tips and suggestions. thanks
Cargo Master
Joined: Oct 2003
Posts: 2,833
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From: Jefferson, Iowa
a c-6 is not electronic. You should be able to do this pretty easy then. Basicly rip out the efi junk, and throw that carb on top, and set the shift cable, and you will be good to go. It might have an electric pump in the line, just take that out, and make the line run just like a regular carbed engine.
Freshman User
Joined: Mar 2004
Posts: 35
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From: Decorah, IA
the 460 and the 351W have different trans housings though. about the easiest wiring would be to get a mid to late 70's distributor and brain box. Then all you would have to do is hook up a run and a start wire to the brain. Another option is an aftermarket HEI GM style distributor.
Freshman User
Joined: Mar 2004
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From: Decorah, IA
probably won't work, the efi fuel pump is controlled by the computer. you could always just run a run(switched 12v) wire to the fuel pump relay, but that might just be an extra hassle to worry about. probaby be best just to have a carbureted electric or mechanical fuel pump.
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Freshman User
Joined: Mar 2004
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From: Decorah, IA
I think that the 351 efi should have about 30-45psi, as far as the carb don' t know, it looks as if their psi is about 6-8. if planning on running a 500hp 460, would a person need extra pressure and more flow?
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Joined: Mar 2004
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From: Wherever there's danger..
AHH, YES. Welcome to the dark side, brother. I'm doing the same swap now on a 94 F-150 stepside. I just bought a new C6 and a crate 460. The odds and ends are where the real expense comes in. Especially when running a tunnel ram and two 600cfm holleys. Good luck, and have fun!
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