S&S, KN420 CAMSHAFT. .420" LIFT

S&S, KN420 camshaft. .420" lift

High lift cam for modified Knuckleheads. .420" lift and longer duration for engines with up to 93" and up to 8.5:1 Compression ratio. High lift valve springs are required.

Fits: > 36-47 74" Knucklehead; S&S KN-series engines