The COMP Cams Pro Magnum hydraulic flat tappet lifters for Chevrolet 6‑cylinder and 90° V6 engines are engineered to perform at higher engine speeds without harmful pumping up. They maintain internal piston position for consistent operation and require an adjustable valve train with specified preload. These lifters are sized and weighted to match the listed Chevrolet applications.
COMP Cams Pro-Mag Hydr Lifters Chevy 90De