spiral or ring type piston pin retainers

[Bob Mulry]

Originally Posted by Rich Biebel

I was in the engine machining and building world for many years and not once can I recall seeing round wire pin locks....from any of the major piston manufacturers.

Round snap ring type was common.....double per side and then spiral locks were the most common.

I'm not sure Rich, but I think that you might be referring to the doubled up Tru-Arc snap rings.

Bob