COMP Cams Pro-Mag Lifters Olds260-455/P - 863-16

Pro Magnum Hydraulic Flat Lifter Set for Oldsmobile 260-455 and Pontiac 326-455.

These Pro Magnum hydraulic lifters are designed to perform at high RPM without any harmful pumping up. These lifters for Oldsmobile 260-455 and Pontiac 326-455 yield significant power increase over standard hydraulic lifters.

Pro Magnum Hydraulic Flat Tappet Lifters. Specifically designed to perform at higher engine speeds. Proper position of internal piston at higher RPM prevents lifters from harmful "pumping up". Unique design yields significant power increase over standard hydraulic lifters. Adjustable valve train required. Pre-load .002"-.004" with engine warm. Applications: Oldsmobile V8 260-455, Pontiac V8 326-455. Specifications: .842" Diameter - 96g Weight - 2.01" Seat Height.

• Unique design yields significant power increase over standard hydraulic lifters
• Proper position of internal piston at higher RPM prevents lifters from harmful pumping up
• Adjustable valve train required
• Specifically designed to perform at higher engine speeds
• Unique design yields significant power increase over standard hydraulic lifters
• Proper position of internal piston at higher RPM prevents lifters from harmful pumping up
• Adjustable valve train required