S&S VALVE GUIDE IN/EX, +.004"

S&S, cast iron valve guide in/ex. +.004"

With a special outer diameter to accommodate S&S KN valve spring covers. Will also fit stock Knuckle and S&S KN engine applications.

Fits: > 36-46 Knucklehead; Knuckles with S&S valve spring covers; S&S KN engines