Re: [Amc-list] performance six

[farna@xxxxxxx]

I agree the heads were probably set up for some alloy valve that would take the higher exhaust heat. Could have been stainless in the mid 60s though, not sure if sodium filled were around! something like stainless would definitely need to be larger in diameter to take the heat though. 

The pistons might be for the engine, the block just isn't bored to fit. Less than 0.020" difference in bore and pistons. May not have been used in that block though. When you take the 232 down compare the pistons. Pin height might be shorter to reduce compression for high boost. 


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Date: Wed, 30 Jul 2008 11:57:11 -0700
From: Tom Jennings <tomj@xxxxxxx>

Sandwich Maker wrote:

> " but one oddity -- the exhaust valve guide holes are about .43" diameter 
> " instead of the .3something of stock. QUITE large.
> 
> 0.375" +/-.  your heads were probably set up for sodium-cooled exhaust
> valves, though i don't know why the stems had to be quite so large.

It is weird. The used valves I have do fit.

--
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AMC.html
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