Jesel Pro Series Aluminum Shaft Mount Roller Rocker Arm Kit - 1.6 / 1.6 Ratio - Full Roller - AFR Heads - Small Block Ford (Set of 16) 12-656-5 Idler Arm K6187 1978-88 GM

Idler Arm K6187 1978-88 GM Metric

Duration 283 / 289

Hook and Loop / Snap-In Clips

Features:Fits MSD LT1 Distributor PN 8381

7/16 to 7/8 in ID

Jesel Pro Series Aluminum Shaft Mount Roller Rocker Arm Kit - 1.6 / 1.6 Ratio - Full Roller - AFR Heads - Small Block Ford (Set of 16) 12-656-5 Idler Arm K6187 1978-88 GMProduct Description: Rocker Arm Pro Series Shaft Mount 1. 6 1. 6 Ratio Full Roller Aluminum Natural AFR Heads Small Block Ford 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