Morel Pro-Series hydraulic lifter set for Chevrolet – Stock diameter hydraulic roller, stock travel, tie-bar. The performance hydraulic lifters are made from a billet body with a clipped axle and have 7000 RPM capability. These lifters have .120 plunger travel and have an 80% fill rate with the test oil. These lifters have a .750 diameter roller wheel. Recommended spring pressures are 100-200 lbs seat pressure and 280-400 lbs open pressure.

Morel Hydraulic Pre-load Settings –

Cast Iron block and Cast Iron Head = .020″ – .025″
Cast Iron block and Aluminum Head = .030″ – .035″
Aluminum block and Aluminum Head = .045″ – .050″