Jesel Pro Series Aluminum Shaft Mount Roller Rocker Arm Kit - 1.6 / 1.5 Ratio - Full Roller - Dart 23 Degree Heads - Small Block Chevy (Set of 16) JRP1020-CT-SB Each set consists of one

Each set consists of one valve cover with a twist-in oil fill knockout (oil fill cap included) and one with a recessed area to place an adhesive backed Holley emblem (also included) or any round emblem of your choice

Hi-Flow 300 Series

Heavy duty round back housing

and track testing to determine if a product really is better and by how much

High Travel Springs

Jesel Pro Series Aluminum Shaft Mount Roller Rocker Arm Kit - 1.6 / 1.5 Ratio - Full Roller - Dart 23 Degree Heads - Small Block Chevy (Set of 16) JRP1020-CT-SB Each set consists of oneProduct Description: Rocker Arm Pro Series Shaft Mount 1. 6 1. 5 Ratio Full Roller Aluminum Natural Dart 23 Degree Heads Small 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