Specialty cam. .585" Evo valve lift, .540" Pan/Shovel valve lift. Used in S&S Early Shovel & P-series engines. Required for setting up S&S P-series (Panhead style) heads to work with stock Shovelhead engines. Used in S&S Early Shovel & P-series engines. Cam lifts in Evolution heads (1.65:1 rocker ratio) are higher than in S&S Panhead or Shovel heads (1.5:1 rocker ratio). This results in an approximate 9% lower valve lift in S&S Shovel or Panhead engines. Spring spacing required.
Fits: > 84-99 Evo style cam for 48-69 Panhead cases