Re: [AMC-list] time to find a stout 5

[Frank Swygert <farna@xxxxxxx>]

Nope. All 70+ 360/390/401 heads are the same for the given year. In mid 71 there was a change in compression made with a larger combustion chamber. So 70-early 71 have the small chamber and higher compression than late 71+ heads. Up through about 73 they used screw-in single stud mount rockers, around 74+ used pressed in studs with bridged rockers. 304 heads were the same as far as years and combustion chamber volumes, but of course they have smaller valves and ports than the bigger engines.

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Date: Wed, 26 May 2010 09:06:50 -0700
From: Jim Blair<carnuck@xxxxxxxxxxx>

Unless it's a '71 motor. IIRC those heads were 401/390 only?


--
Frank Swygert
Publisher, "American Motors Cars"
Magazine (AMC)
For all AMC enthusiasts
http://www.amc-mag.com
(free download available!)

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