COMP Cams Lifters 84000-12 As the best all-around high performance Hydraulic flat tappet lifter, Race Hydraulic Lifters from COMP Cams are designed to stand up to the abuse of racing. They feature tighter plunger to body tolerances and super strict tolerances for the mechanical internals. With premium one-piece pushrod seats, heavy-duty snap rings and a lubrited cam face, Race Hydraulic Lifters offer superior performance and durability. Hydraulic FLT Tapper Liftrs, CHVY BB and SB COMP Cams Race Hydraulic Lifters for Small and Big Block Chevy, Set of 12 COMP Cams Hydraulc Flt Tappet Lifters Ch