Rebuilding 902 heads

I have a 499" RB that has a massive amount of port work done. The short side walls are pushed out to where it requires epoxy and .485" offset intake rockers. I still run the stock size valves because there is nothing to gain from installing the larger valves. If there were gains to be had I would have used the larger valves.

Unless you have something seriously wrong with your valves the stock OEM 3/8" are a good quality piece. If you want to go to 1-piece stainless steel valves I am an SI valve dealer and can set you up with several options.

Tom