I know the whole port needs to be reworked which is what I plan to do, match it to a 1206 gasket, clean up the short turn, clean the guide bosses etc. Theres actually a lot of CFM left in cleaning up the bowls to look like a newer platinum series head.
I'll be doing the valve job in class and cutting the heads for the bigger valves. As well as the port work which is really minor in my eyes.
__________________
5.3L LSx, Fbody .500 cam, TH400, 4500 Stall, Moser 9"
|