The internal hydraulics of standard roller lifters are susceptible to pumping up around 6200-6500 RPM, causing horsepower robbing valve float along with the possibility of severe valvetrain damage. If you're looking for the most dependable and best performing hydraulic roller available, upgrade to a Lunati Signature Series Hydraulic Roller Lifter and get the RPM capabilities similar to a solid roller with the long, maintenance free life of a hydraulic roller.

• Lunati proprietary steel alloy lifter bodies - micro polished for reduced friction
• Revolutionary internal design supports high RPM stability
• Large .750" diameter roller lifter wheel dispenses load over a wider range and takes full advantage of aftermarket camshaft profiles
• Able to withstand higher spring pressures than competitors' units
• Secured link bar system pairs lifters together - ideal for race applications