Building a 351w
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Freshman User
Joined: Dec 2009
Posts: 40
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From: Orange County, Va
Building a 351w
Welp ive always been a big block and diesel man, never really messed with a small block, but recently i have bought a 85 F150 with a H.O 351w, its a mid atlantic crate motor not sure if its bored but it does have roller rocker arms so im guessing its got a cam and is not stock, and it has a 4bbl holley, so on that note i wanna build it. Most of buddies around here are Chevy guys and they talk alot of S**t so im looking on a blueprint or any kind of wisdom from yall on what to do to it. Im looking for a great street performer with gas mileage in the 8-11 range but i want it to run like a raped ape. so im open to suggestions on what to do. Thanks!
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Freshman User
Joined: Dec 2009
Posts: 40
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From: Orange County, Va
shoot, all i really no is it a H.O. and is a mid atlantic motor i do know it has roller rocker arms and some means of a cam. but other than that i dunno. Im pretty satisfied with it personally performs great. just wanna put a little more *** in her.
FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
If the motor runs smoothly and has good oil pressure you don't need to do anything to it besides let it breath, these Ford small blocks were assembled with better componants and to closer tolerances than the GM crap from the same era so the bottom end is solid, it just need heads and a full exhaust system to release it's potential.
Junior User
Joined: Mar 2009
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That'd be my vote too. If the bottom end is all good, find a good set of heads that give good flow and compression ratio. Squeeze a set of headers and full exhaust on it, match that with a good intake carb setup maybe change out to a little bit more of a performance cam but still keep in mind it's a heavy truck so don't over-do it. You should have a nice torquey small block
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