Technical > Matt Shaff's Engine Shop

Compression Ratio

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spitzerscott:
This is a 336 SBC

Frontenginedragsters:
This is the calculator I use:
http://users.erols.com/srweiss/calccr.htm

Roger:
336 small bocks are usually a 0.060” over 4” bore with a 3.25” stroke. With a piston dome of 13cc, a chamber volume of 64cc, along with a 0” deck height and a 0.041” thick gasket with a 4.1” diameter, that come out to 12.5-1cr. Put a 58cc chamber on that combination and that comes out to 13.8-1cr. Or something close to that.

spitzerscott:
Thanks Roger, that's what I was looking for.

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