Description

Note: RPM figures are for 304-308 engines, for 253 engines add 500rpm, for 350 engines subtract 500rpm.
All roller lifters should be checked in the block to ensure the oil gallery is not unmasked on full lift, otherwise oil pressure problems at low RPM could occur.
All valve lifts shown are calculated at 1.6 ratio. If using roller rockers, ratio will be 1.65 and lift will increase.
Large range of custom flat tappet and roller cams available. Call for details.
Ultra Pro Series for Max Performance Use.
Reduced lobe height cams (RF) are available if required at extra cost. Use with lifters that unmask the oil gallery.

Reference: JPFD5118950