300 head change

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Feb 7, 2003 | 03:21 PM

bench seats bite

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300 head change

hello ford truckers i got a ? i was told a 240 head will fit on my 300, if it does what will be the benifits? will this caose a problem with my dual exhaust manifolds? moter is stock but want to put 4bbl. carb&manifold

Feb 7, 2003 | 03:55 PM

mantta

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From: Keweenaw Bay, MI

300 head change

Everything on your 300 will bolt up to a 240 head. The exhaust bolt pattern is also the same. The 240 head has a smaller combustion chamber so your compression ratio will go up some.

Feb 7, 2003 | 05:57 PM

bench seats bite

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300 head change

if i put a 240 head on will i need to rebuild the bottem end for strength

Feb 7, 2003 | 06:03 PM

Ford_Six

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From: The Big, Oregon

300 head change

A 240 head will fit just fine, but ANY perfomance mod should be done on a fresh engine. Modding an old engine will just accelerate wear. If it already burns oil, pull the engine and rebuild it, and do your mods then.

Feb 7, 2003 | 06:09 PM

bench seats bite

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300 head change

no the moter dont smoke its got 103k on it and is still super strong i only want to do this once

Feb 9, 2003 | 11:02 AM

bench seats bite

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300 head change

so will a basic ring and bearing work? also i was thinking about a new cam but im not sure on how to pick one i dont want to over rap the moter but i want more ponies icant spend to much money the wife already thinks its a money pit my friend says that a header will be a waste because i have dual exhaust manifolds, and a purple horny?? is it a good idea to build a torqy moter with low rpm. and put highway type gears behind it?