Join Date: Feb 2002
Location: N.W. Washington
you should have some instruction sheet of some sort that came with the rings. if you don't you really should email perfect circle, or check the web site for identification. but, if i were to guess, here's what i'd do. if there is any mark, like a dot or something put that facing up on the piston. then the ring with the large bevel, is likely the top compression ring, and the bevel should face up. the top ring should also be a tighter, harder to expand ring, since it's likely a ductile iron. the bottom ring is likely the ring with the slight bevel, and the bevel should face down, as long as a mark, such as a dot doesn't tell you otherwise, dots up. the second ring should be cast iron, and more "flexable" as well. but i would REALLY make absolutely sure by contacting the manufacturer first. also be sure the rings are properly "clocked" on the piston. good luck with it
1968 rs with an old school 354" SB2.2 pump gas motor.
Repetition does not transform a lie into a truth.
Franklin D. Roosevelt