COMP Cams Evolution Hydraulic Roller Lifters are the first lifters ever created using the newly patented Hydraulic Cartridge Technology (HCT). This revolutionary design offers the most reliable performance of any lifters in the aftermarket. A combination of a self-contained hydraulic cartridge within a thick wall lifter body and accompanying reduced oil volume that is less affected 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 today. Startup noise is greatly reduced and a precision-controlled bleed down rate ensures excellent performance at high RPM. The cartridge design allows for an incredibly stiff lifter body that greatly reduces body distortion and further ensures consistent hydraulic performance.

• • HCT and proprietary methods ensure unparalleled precision and longevity
  • Developed specifically to meet the performance and durability demands of modern street/performance street engines
  • Hydraulic element is serviceable, allowing anyone to rebuild
  • Precision-controlled bleed down rate ensures excellent performance at higher RPMs

For more than 35 years, COMP Cams’ mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and lead the industry in technological development. While the COMP Performance Group has grown to multiple companies and hundreds of employees, they still retain the competitive spirit and desire to be the very best that has positioned COMP Cam as the absolute leader in valve train components. Go here for more details and pricing.