360 head porting for big power (500HP ?)
Pic of valve. Ferrea severe duty hollow stem stainless. 2.02 diameter 33* back cut to within .010 of lap mark of seat. One of the best flowing valves I've tested. These are circle track motor take outs (one season). They are about $40 apiece, gotta love them high dollar guys throwing out stuff thats better than what a lot of us start with.
Pic of valve. Ferrea severe duty hollow stem stainless. 2.02 diameter 33* back cut to within .010 of lap mark of seat. One of the best flowing valves I've tested. These are circle track motor take outs (one season). They are about $40 apiece, gotta love them high dollar guys throwing out stuff thats better than what a lot of us start with.
