KPMI, EXHAUST VALVE GUIDE. C630 BRONZE. +.004"

KPMI, exhaust valve guide. C630 bronze. +.004"

C630 bearing bronze. Comes with special shoulder for ease of installation. Takes OEM valve seals. Shortened to accept valve lifts up to .600". 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 0.5620" O.D. (14.27mm); .3085" I.D. (7.84mm); 2.100" OAL (53.34mm).

Fits: > 84-99 Evo B.T.; 99-04 Twin Cam; 86-03 XL (NU)