Re: [AMC-list] 232 engine head.

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: Jim Blair <carnuck@xxxxxxxxxxx>
" 
" 
" I've had 4.2L heads posted for sale for some time and no-one has been
" interested. ($50 with the '80 tin cover) The combustion chamber was
" made bigger on the later models, which will affect compression ratio.
" I found that out when I put an early 72 head on my late '70s model
" engine. Ran like a rocket but burnt oil like crazy until the pistons
" collapsed. 

'64-7 head was 56cc; '68-'76 was 66cc; '77-80 was 74cc.  i've never
seen specs for the '80s but c.r. bumped from 8.0:1 to 8.3:1 to 8.6:1
to i think 9.2:1, and the only change i can track was head p.n.

pistons also changed along with the heads '60s-'70s.  late '70s slugs
have less dish than early '70s, but again i don't know specs.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh@xxxxxxxxxxxxxxxxx                       and think what none thought
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