KPMI, exhaust valve guide. C630 bronze. +.001"

KPMI, exhaust valve guide. C630 bronze. +.001"

C630 bearing bronze is a tough nickel-aluminum-bronze alloy typically used in High Performance and racing applications where rapid heat transfer from the valve to head is important. Note: Standard non-oversize dimensions (for reference only) are 0.4750" O.D. (12.07mm); 0.2342" I.D. (5.95mm); 1.655" OAL (42.04mm).

Fits: > 17-20 M8