KPMI, EXHAUST VALVE GUIDE. C630 BRONZE. STD

KPMI, exhaust valve guide. C630 bronze. STD

C630 bearing bronze. Standard size: 0.5650" O.D. (14.35mm); 0.3760" I.D. (9.55mm); 1.880" OAL (47.75mm). 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.

Fits: > 48-65 Panhead; 66-78 74" (1200) Shovel (NU)