RHS head valve train??
Thanks for posting your numbers. I admire your custom work on the Valve Train and it looks trick as all get out! With all this work that was done to these heads you are probably into "Indy" Territory on Cost it would seem. Your flow numbers seem to be just about the same as out of the box RHS Heads though? I have used 3 Sets of these Heads now and with a mild clean up with 2.02 intakes and 1.65 Exhaust Valves they flow maybe a bit more at .500 & .550 lift.
Cool to see someone take a different approach on how to get it done.
Yes, I suppose we still have some things to learn about porting. When racing flowbenches, it is sometimes difficult to obtain accurate comparable measurements. Here is what the RHS stock port, with a 1.94 valve, flowed on our bench and the same head with our porting and a 2.05 valve.
Lift..........Stock Port 1.94............Ported 2.05
.100...............57cfm......................78cfm
.200..............124.........................147
.300..............184.........................203
.400..............230.........................241
.500..............255.........................275
.600..............257.........................296
.700..............249.........................306
The bigger valve can make a heap of difference!
