exhaust valves
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02-22-2004, 01:53 PM
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Originally posted by Crazyhorse
Please define a "perfect grind" for those of us that might not know what your definition of that is.
Please define a "perfect grind" for those of us that might not know what your definition of that is.
02-22-2004, 08:22 PM
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If have a turbocharged or blown motor you should use inconel. The exhaust temperature of the valve can get over 1300 degrees and at that temperature regular stainless steel valves won't take it. If your just carbed or EFI, a quality well installed stainless steel valve on a good seat will do just fine. What does quality mean, a valve thats 21-4N , EV8 stainless steel or better. A valve thats concentric and a forged one piece valve. All good valves made today are made in Argentina. That goes for Manley, Ferrea, Rev, Superflow, etc.
Raylar
Raylar
02-22-2004, 10:13 PM
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I went to the Manley site... there wasn't anything about valves being made in Argentina... but it doesn't surprise me... next they will be made in China... China... China.... China.... maybe Mexicans will start going to China.. that seems to be where all our jobs are now...
