I have some 862 heads and I want to put a little bit bigger valves in there. Anyone think of some decently priced valves that will handle 600hp or so? My goal is 500 but I want a little extra room. I am understanding that stock size exhaust and 2" intake is best. I know I'll need to get the valve seats ground for the bigger diameter, bit I'm cool with that. I just need some ideas on stem diameter, length, prices, experiences, etc. Thanks so much!

 

Summit has stock replacement 2" intake valves for cheap.