Jesel Sportsman Shaft Mount Roller Rocker Arm - 1.60 Ratio - Dart Pro 1 Heads - Small Block Chevy (Set of 16) AA0710AG1S57 Fits standard 5-bolt (2

Fits standard 5-bolt (2

Bronze Element

1-1/2 in Steering Shafts

Saginaw / T10 / Muncie Transmissions

Jesel Sportsman Shaft Mount Roller Rocker Arm - 1.60 Ratio - Dart Pro 1 Heads - Small Block Chevy (Set of 16) AA0710AG1S57 Fits standard 5-bolt (2Product Description: Rocker Arm Sportsman Shaft Mount 1. 60 Ratio Full Roller Aluminum Natural Dart Pro 1 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 endless