Jesel Sportsman Mechanical Roller Lifter - 0.842 in OD - Link Bar - Big Block Chevy (Set of 16) 4000501 Includes an advanced MAP sensor

Includes an advanced MAP sensor and wiring harness for ease of installation

840 in Head

Bottom Side Outlet

As always they come with AFR's trademark 3/4'' thick head deck (ideal for nitrous or blower applications)

Various GM 2004-23

Jesel Sportsman Mechanical Roller Lifter - 0.842 in OD - Link Bar - Big Block Chevy (Set of 16) 4000501 Includes an advanced MAP sensorProduct Description: Lifter Sportsman Mechanical Roller 0. 842 in OD Link Bar Big Block Chevy Set of 16 Dan Jesel realized early on that the success and demand for his high end valvetrain components was in part dependent on huge valve lifts, unheard of spring pressures and rpm that most thought was impossible. So he started on a 10 year quest to perfect the roller lifter. After nearly nine years of R&D and endless testing, Dan brought the first Jesel