Howards Cams 91161-2 Features:

Retro-Fit Maximum Effort Chevrolet Mark IV, Gen 5/6 Hydraulic Roller Lifters A true high performance street lifter designed primarily for ease of maintenance and reliability. Our number one selling hydraulic roller lifter. CNC machined bodies fitted with a precision check ball internal valving to prevent lifter “pump up”. Great for moderate high lift street strip and marine applications. Made in the USA!