Evolution Retro-Fit Hydraulic Roller Lifters for Holden Engines

Evolution Retro-Fit Hydraulic Roller Lifters for Holden engines feature a seat height of 2.63 inches and 0.125 inches of travel with needle-bearing wheels. HCT and proprietary manufacturing ensure precision and longevity.

• A combination of self-contained hydraulic cartridge and accompanying reduced oil volume that is less effected by oil aeration delivers the most consistent bleed rates between each lifter.
• The smaller volume within the hydraulic cartridge creates one of the most responsive and quietest lifters on the market.
• The patented cartridge lifter provides most consistent performance of any set of lifters in the aftermarket.
• Startup noise is greatly reduced and a precision controlled bleed down rate ensure excellent performance at high RPM.
• The patented cartridge design also allows for an incredibly stiff lifter body
• greatly reducing body distortion and further ensuring consistent hydraulic performance.