deck height: 9.248"
rod length: 6.142"
stroke: 3.700"
cylinder bore: 3.425"
gasket bore: 3.425"
gasket thickness: .047"
combustion chamber: 48cc
piston dish: 6cc

with .002" piston to deck height i get a compression height of 1.254" and a static compression ratio of 10.19:1 correct? thanks!

 

at the end of the day, it comes down to:

*where your piston top is relative to the deck / measure in-line with piston pin.

*cc's in cyl head.

*head gasket thickness

*head gasket diameter

*bore diameter

*figure 0.7cc crevice /top land / ring land volume

*piston dish volume

*stroke

in order to get your static cr.

 

im mostly looking for a double check in compression height and dish volume as im about to order pistons and dont want a set of paperweights.