Camshaft, Hydraulic Roller Tappet, Advertised Duration 273/279, Lift .581/.588, Chevy, Small Block, LS See More Specifications | Check the Fit COMP Cams XFI XE-R Camshafts 54-444-11 5 out of 5 stars ( 3 ) Part Number: CCA-54-444-11 Estimated USA Ship Date: TodayEstimated Internati...