COMP Cams 858-16 Pro Magnum Hydraulic Flat Lifter for Small and Big Block Chevrolet.
Special Features
- .842” diameter; 99g weight; 1.93” seat height
- Specifically designed to perform at higher engine speeds with significant power increase over standard hydraulic lifters
- Proper position of internal piston at higher rpm prevents lifters form harmful inchpumping up inch
- Adjustable valve train required
- Pre-load lifters .002 inch-.004 inch with engine warm
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