Comp Cams Evolution Retro-Fit Hydraulic Roller Lifter - 0.904 in OD - Small Block Mopar (Pair) UMI6433-2-B Fixed Mount

Fixed Mount

324 in Diameter Spring

4 AN Hose to 4 AN Female

1978-1986 Chevrolet Monte Carlo

Comp Cams Evolution Retro-Fit Hydraulic Roller Lifter - 0.904 in OD - Small Block Mopar (Pair) UMI6433-2-B Fixed MountCOMP Cams Evolution HCT (Hydraulic Cartridge Technology) is a new patented tappet. The Evolution HCT tappet provides most consistent performance of any set of lifters in the aftermarket. A combination of self contained hydraulic cartridge and accompanying reduced oil volume that is less effected by oil aeration delivers the most consistent bleed rates between each lifter. The smaller volume within the hydraulic cartridge creates one of the most