Andrews, AB grind / .450" lift camshaft

.450" valve lift. Street. This is the A cam with the longer exhaust duration of the Andrews B. Improved high end performance and reduced oil temperature in hot weather. Should install with no headwork (excl. 81-82). Note: For 81-82 models. The height of original stock H-D valve guides restricts spring travel (and valve lift) to .430" or lower.

Fits: > L77-84 Shovelhead (NU)