a big plus when switching to a bolt-in cam

The exhaust plug (981567) is used to plug-off the stock wiring that runs to the mechanical actuator valve in the stock exhaust header

heat treated and shot peened for additional strength and protection from metal fatigue

08-12 XR = 7mm (

KPMI, exhaust valve guide. C630 bronze. +.003" 1948-78 Ram delar a big plus when switchingDescription 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. 5650" O. D. (14. 35mm); 0. 3760" I. D. (9. 55mm); 1. 880" OAL (47. 75mm). Fitment 48 65 Panhead; 66 78 74" (1200) Shovel