I have 5 sets of NOS GM 455+.030" piston rings in perfect condition, PLUS 3 sets of rings with varying degrees of corrosion from long term storage.. Group 0.643, Part # 231430. They are stock style and thickness rings. I am selling them as a broken set, some of the corroded rings may be salvageable. Asking $40 plus shipping or best offer. Bob Staten Island, NY 10306

2 sets of good rings

3 sets of good rings

3 sets of corroded rings

part numbers

 

You wouldn't happen to have a single cast .030 over 455 piston would you?

 

IF yorkman can't help you with a single piston, I have some misc. used cast pistons.

 

Sorry, I don't have any pistons. Thanks for asking. Bob

 

Thanks for the responses. Looking for a new one. My buddy has seven for his '70 442, he needs an eighth.