CamShaft Combo Sifton 460 Intake with MAP1052 Exhaust
Race Use Added mid-range with top-end power Intake.401" Cam Lift - 308 Duration at .020" 102 Lobe Center Exhaust: .375" Cam Lift (.422" valve lift) - 296.5 Duration at .020" 105 Lobe Center Intake (open/close): 52 btc/76 abc .008" lash Exhaust (open/close): 73.5 bbc/43 atc .010" lash Perfect Road Race combination. Same cam as used in our 5 time National ARMHA Formula 750 Championship Winning Road Racer
Requires: Hi-compression Pistons (10.5-1+) Race springs PM0300, PM0290, PM0295, PM0292 or PM0296 (as determined per useage) Hi-performance pushrods MAP1722 (T120 "long rod") or MAP1724 (T140 "short rod") New or Resurfaced "STD" tappets (.750" radius) Only INTAKE and "R" (1.1/8" radius) EXHAUST. Note: If sending in for regrind be sure to check for stems for wear (.3115-.3105")