COMP Cams Evolution Retro-Fit Hydraulic Roller Lifter - 0.842 in in OD - Link Bar - Big Block Chevy (Pair) NPT Plugs Features 3/16" mic plug and

Features 3/16" mic plug and 3/16" mic jack

Zinc Plated / Orange Powder Coat

Dyno Tuned For Maximum Power

842" bores

shaft bearing

COMP Cams Evolution Retro-Fit Hydraulic Roller Lifter - 0.842 in in OD - Link Bar - Big Block Chevy (Pair) NPT Plugs Features 3/16" mic plug andCOMP 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