Includes YT 5132 - 10mm rubber spacer kit.Shaft mount rockers do not require guide plates.Extruded from aircraft grade aluminium, perfect for dissipating excess top-end heat.Adjustable kits are designed for use with both hydraulic and mechanical (solid) lifters. Hydraulic kits are designed specifically for use with hydraulic lifters.Yella Terra’s exclusive Ultralite rocker arm, shaft and pedestal system offers 50% less nose weight than the factory rocker system, the result being greater RPM potential, with the added advantage of improved strength and durability. Yella Terra’s engineering team set out to find a solution to the problem, and the result was the Ultralite.
Late model V8 and V6 engines that run factory light weight valvetrain components are often subject to valve float in the upper RPM range, limiting the engines performance and full potential. Manufactured and assembled in Australia using the highest quality materials. Yella Terra Ultralite is ideal for high revving street applications when coupled with factory/lightweight aftermarket springs.
250” needle nose roller and can be fitted with our Tool Steel Ball Adjuster which adds over. 750” diameter clamping area and provides enough room for a 7/16” mounting stud to securely fasten the rocker to the mounting stand. shaft bearing to increase the critical bearing strap area needed to reduce body deflection. This unique shaft design allows the Jesel engineers to use a. The use of this material in conjunction with the dual diameter modular shaft provides for an extremely lightweight yet rigid rocker arm. Introduced in 1999 primarily for the NASCAR circuit and currently available for limited applications, Jesel’s Pro J2K Series is a lightweight, high-end alternative to our standard Pro Series line.Īll J2K rockers are manufactured from a custom blend, shotpeen finished 7000 series aluminum for durability and cycle life needed at elevated operating temperatures experienced in endurance racing.
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