The question is not how much can be taken off X head, but what is the
maximum safe workable compression ratio of the 2.25 - correct? 9:1 is the
highest I've heard.
Keith
At 00:05 13-01-03, you wrote:
>I believe it depends on the head, as some didn't have as much spare
>metal. Unfortunately I don't remember which ones those are, but I bet
>a search of the archives will give you the answer. The most that can be
>shaved off is 100 thou. That will bring a 7:1 head up to 8:1, and an
>8:1 to 9:1. You could also have the block decked, shave some metal off
>of the top face of the block. I don't know how much of it can come off,
>but a machine shop could measure for you. You will also need shorter
>pushrods, or will need to shim the rocker towers.
>
>Monika & Steve Rochna wrote:
> >
> > All:
> >
> > Does anyone know what the highest safe ratio to have a head shaved to for
> > general purposes? Here at four thousand feet any bit of power addition
> > would be appreciated but I don't want to jeopardize my engine - I know it's
> > not a race car.
> >
> > Thanks - Steve Rochna, Fallon, NV
> > 1972 SIII 88"
> > 1968 SIIB 110" FC
> >
> > ---
> > [This E-mail scanned for viruses by Oasis Online]
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>
>--
>Jim Hall
>1966 88" Elephant Chaser
>http://webs.purplemountain.net/jimfoo/Foospage.htm
>"You know, I never really damaged my Rover 'till I started wheeling
>with Jim." Mitch Stockdale
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