Comp Cams Hydraulic Roller Lifters Evolution Retro-Fit 348/409 Big Block Chevrolet Engines

Equip your 348/409Big Block Chevrolet Engine with Comp Cams Evolution Retro-Fit Hydraulic Roller Lifters (89591-16) and enjoy some of the most responsive and quietest lifters on the market! These lifters combine a self-contained hydraulic cartridge with a thick lifter body and a reduced oil volume for consistent bleed-down rates at high RPMs.

Features and Benefits:
- Consistent bleed-down rates
- Durable lifter body withstands body distortion
- Increases lift to the camshaft
- Compatible with original flat tappet cam engines
- Two separate oil features
- Hydraulic element is serviceable allowing heads to be rebuilt at home
- Tall-body design fits standard and tall lifter bore blocks

In addition to the excellent performance, each lifter also features an ultra-stiff body, minimizing body distortion for top-rate longevity. To top it all off, these lifters provide increased camshaft lift, two oiling features, and use a serviceable hydraulic element to ensure anyone can rebuild their lifters in the comfort of their garage!