COMP Cams 4921 - Oil Pump Primer, for Chevy V8

COMP Cams Engine Prelube Primers allow the oil pump to be primed and the engine prelubed prior to initial start-up. They feature a top alignment collar and a bushing to pressurize the upper valve train.

Allow the oil pump to be primed and the engine prelubed prior to initial start-up; Eliminates the chance of a "dry start" and premature engine damage; Primers drop in place of distributor and, with the use of a drill, spin the oil pump to supply oil to critical engine components; Both models feature a top alignment collar and Chevrolet model includes a bushing to pressurize the upper valve train;