Cart 0
COMP Cams Evolution Retro-Fit Hydraulic Roller Lifters for 396-454 Chevrolet Big Block - Pair
COMP Cams Evolution Retro-Fit Hydraulic Roller Lifters for 396-454 Chevrolet Big Block - Pair
COMP Cams Evolution Retro-Fit Hydraulic Roller Lifters for 396-454 Chevrolet Big Block - Pair

COMP Cams Evolution Retro-Fit Hydraulic Roller Lifters for 396-454 Chevrolet Big Block - Pair

(Excluding Injectors) For Non Continental USA or International Shipping on ECUs and some other items, Please contact us directly to get an accurate quote for your order.

PLEASE CONTACT US DIRECTLY BEFORE PLACING ANY ORDERS TO CHECK AVAILABILITY ON ITEMS! SOME ITEMS MAY BE OUT OF STOCK WITHOUT ANY INDICATION. IF AN ORDER IS PLACED WITHOUT CONTACTING US DIRECTLY AND NEEDS TO BE CANCELLED, THERE IS UP TO A 10% CANCELLATION FEE!

  • This is a SPECIAL ORDER item and availability can vary, please contact us for an accurate timeframe of availability before purchase. Some items can take 30+ days from manufacturer to become available.***ANY SPECIAL ORDER PLACED WITHOUT CONTACTING US FIRST IS SUBJECT UP TO A 10% CANCELLATION FEE***

  • Manufacturer Part Number: 85401-2
  • WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. PROP65 INFO
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.