Curious why would anyone "knurlize" new pistons? Most shops want to measure new pistons and hone the cylinder to size. Knurling in my opinion is a half *** way to size a worn piston/cylinder.
Grant 1950 Chevy 3100 1952 GMC 150 (In Pieces) 1968 Chevy K20 1966 Shovelhead 1978 BMW 100S