COMP Cams Evolution HCT (Hydraulic Cartridge Technology) is a new patented tappet. The Evolution HCT tappet provides most consistent performance of any set of lifters in the aftermarket. 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. 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. This patented HCT tappet is not just a performance Original Equipment replacement. This is an all new bespoke design started from a blank canvas developed to meet the demanding performance and durability our customers desire.Also, as an industry first the hydraulic element of this patented lifter is serviceable, allowing anyone to rebuild their lifters in their own garage.
Evolution HCT Lifters offer quite operation expected from a hydraulic tappet and higher RPM demand by many of today's modern engine builds. Most consistent, highest performing, and quietest hydraulic lifter on the market.
Designed to meet the demanding performance and durability needs of today's high performance engines
Most consistent performing lifters available
Quietest hydraulic lifters on the market
The COMP Cams Evolution HCT (Hydraulic Cartridge Technology) lifters are engineered to deliver unmatched consistency and performance for demanding high-performance engines. Featuring a patented hydraulic cartridge design, these lifters minimize oil aeration effects and provide a precise, controlled bleed-down rate, ensuring optimal operation at high RPMs. Their compact hydraulic volume results in a highly responsive, quiet operation, significantly reducing startup noise and enhancing overall engine smoothness. The rigid, one-piece cartridge construction resists body distortion, maintaining hydraulic performance even under intense engine conditions. This innovative design offers a blend of durability, performance, and serviceability, allowing users to rebuild the hydraulic element in their own garage, making it a versatile choice for both professional builders and enthusiasts. The Evolution HCT lifters are ideal for modern engine builds requiring consistent performance, quiet operation, and longevity. They meet the rigorous demands of high-performance applications and are designed to improve engine responsiveness and durability across a wide range of high-output builds. Whether you're upgrading an existing engine or building a new high-performance powerplant, these lifters provide the reliability and precision necessary for optimal engine operation.
