Re: [Amc-list] 232 combustion chamber - No Squish

[Wrambler242@xxxxxxxxxxx]

I'd hate to call it one way or the other.
Your pistons are down the hole a bit, so it may be of no help at all, but then again...

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrc II
" Chronic Pain Hurts"

 -------------- Original message ----------------------
From: Tom Jennings <tomj@xxxxxxx>
> Sandwich Maker wrote:
> 
> > the '64-7 head was closed chamber, 56cc iirc.  '68-'76, 66cc open.
> > '77-'80 [at least], 74cc open.  pistons are different for each; by my
> > calc '77-9 slugs actually have 6cc less dish than '68-'76.
> 
> Hey! I found that I have a closed-chamber head in my iron pile. It's in 
> great shape, casting 3170717. I think it's a 64 head. (And it's got the 
> top-end oiling fix; the far rocker bolt is drilled, 1/8" tube brazed in 
> the top out through the valve cover for an external oil line.)
> 
> Assuming it's a 56cc head, a .030" head gasket, and flat top pistons 
> that come up .0845" below the deck, bore x stroke is 3.78 x 3.50... (30 
> over)
> 
> area= 11.22 sq in
> gasket volume = .33 ci
> chamber volume 56cc = 3.4 ci
> 
> 
> BDC
> cyl volume = 39.27 ci (area * 3.5)
> total volume= 43.00 ci
> 
> TDC
> cyl volume = 0.948 ci (area * .0845)
> total volume= 4.678 ci
> 
> static ratio = 9.19:1
> 
> 
> Anyone's opinion: is this too much for a street car on cheap pump gas?
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