Hi. What is the reason for using valve stem oil seal? If the head hasn't a high mileage on it wouldn't it prevent oil going down to the chamber by itself?
Anyway I'm thinking of making my own valve stem oil seals in a machine shop using teflon core. Don't know yet how to do it and even if it is a good idea. I can't find the rubber ones good. By the way my engine is a Chevy 250, my valves are new manley stainless steel and my head is a 64cc used but in good condition/never milled anywhere.
Does anyone use a custom valve stem oil seal?
Thanks a lot guys!
