Cylinder head porn from HeadGames...
well...to be honest, all exhaust valves are inconel. Inconel is a term for a material that can withstand heat. You can google it and read about it where it comes from. But, enough of the history lesson...you can get different grades of inconel. We offer everything from EV8 which is what most valves are made from, to pyromet which is the same material used in Top Fuel, and what we use for some of the more higher HP stuff that comes out of here. 1400whp and above receives the pyromet.
dave is the man i am running one of his heads on my build hopefully have some numbers next week i kno of another evo evo same setup as mine close to 800whp on a hta86 you coming down to mir next weekend ?
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lol!


