I purchased a set of speedpro/TRW pistons. They look real nice but underneath the piston, and on the sides where the pin goes through, the surface it looks like cast to me.
Is there a rule of thumb to tell if a piston is forged?
I have seen forged pistons before and I remember the surface being really smooth. although the machined surfaces are shinny The bottom looks rough, almost like the texture of my T-type rims.
Is there a rule of thumb to tell if a piston is forged?
I have seen forged pistons before and I remember the surface being really smooth. although the machined surfaces are shinny The bottom looks rough, almost like the texture of my T-type rims.