Jesel Sportsman Shaft Mount Roller Rocker Arm - 1.70 Ratio - Merlin Heads - Big Block Chevy (Set of 16)

Product Descripton:

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 roller lifters to market in 1998. Since that time, Jesel roller lifters have stood as the industry standard in NASCAR, NHRA’s Pro Stock, Top Fuel and Funny Car, as well as endurance racing on the world stage. Since their release nearly 20 years ago, Jesel has built our Precision Roller Lifters with features that other companies are just starting to call standard. Features such as the use of exotic materials for the rollers and axles, friction reducing coatings on the bodies and precision sorted bearings that are cooled and kept free from debris by pressure fed oiling have been incorporated into every Jesel lifter ever made.