EVOLUTIONHYDRAULIC ROLLER LIFTERS 

WITH HYDRAULIC CARTRIDGE TECHNOLOGY 

Patent No. 11,136,907 

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 performance and durability demands ofmodern street/performance street engines 

  • Hydraulic element is serviceable, allowing anyone to rebuild 
  • Precision-controlled bleed down rate ensures excellent performance at higher RPM's

EVOLUTION™ HYDRAULIC ROLLER LIFTERS APPLICATION CHART

MakeDescriptionDiameterSeat HeightPart #
OE-STYLE NO LINK BAR HYDRAULIC ROLLER LIFTERS
Chevrolet & GM LSSmall Block 305 and 350, Use in Blocks Originally Equipped w/Hydraulic Roller Cam (1987-Present Including Gen II, III, IV & V Engines).842"2.660"85001-16
DodgeGen III HEMI 5.7L, 6.1L, 6.2L, 6.4L.842"3.150"85601-16
RETRO-FIT LINK BAR HYDRAULIC ROLLER LIFTERS
ChevroletSmall Block 265-400, Retro-Fit Roller Lifter for Early Model Blocks Originally Equipped w/Flat Tappet Cam, Tall Body Fits Both Standard Blocks & Tall Lifter Bore Aftermarket Blocks.842"2.475"85301-16
ChevroletBig Block 396-454, Retro-Fit Roller Lifter for Early Model Blocks Originally Equipped w/Flat Tappet Cam, Tall Body Fits Both Standard Blocks & Tall Lifter Bore Aftermarket Blocks.842"2.475"85401-16
ChevroletBig Block 348, 409, Retro-Fit Roller Lifter for Early Model Blocks Originally Equipped w/Flat Tappet Cam, Tall Body Fits Both Standard Blocks & Tall Lifter Bore Aftermarket Blocks.842"2.475"85601-16
GM LS/LTLS Series Captured Link Bar Retro-Fit Roller Lifter for 1997-Up, Fits Factory, LSX & Warhawk Blocks.842"2.660"89571-16
ChryslerSmall Block 273-360, Retro-Fit Roller Lifter for Early Model Blocks Originally Equipped w/Flat Tappet Cam.904"2.300"89201-16
ChryslerBig Block 383-440, Retro-Fit Roller Lifter for Early Model Blocks Originally Equipped w/Flat Tappet Cam.904"2.300"89211-16
FordSmall Block 289-302-351W, Retro-Fit Roller Lifter for Early Model Blocks Originally Equipped w/Flat Tappet Cam.875"2.600"89311-16
FordBig Block & FE 390-428, 429, 460, Retro-Fit Roller Lifter for Early Model Blocks Originally Equipped w/Flat Tappet Cam.875"2.600"89341-16
Oldsmobile & PontiacOldsmobile & Pontiac, Retro-Fit Roller Lifter for Blocks Originally Equipped w/ Flat Tappet Cam (Will Not Clear Stock Intake on Small Block Oldsmobile or Edelbrock #3711 Intake).842"2.475"85701-16

EVOLUTION™ HYDRAULIC ROLLER LIFTERS VIDEO