Manton Pushrods

LS - Billet Toolsteel Trunnion Kit

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Manton Pushrods is proud to release a Premium Tool steel Billet Trunnion upgrade kit for the GM LS engine platform. It replaces both the cage-less OEM needle bearings and stress formed 9/16 diameter trunnions with our high load capacity bronze bushings as well as, our 3/4 diameter maximum surface area trunnions. Our improvement in design and engineering will provide more load disbursement area on the bottom side of the trunnion, where the majority of stress occurs. We have also engineered the bushing to wrap around the outside of the rocker arm body, which provides a very low co-efficiency of friction when side thrust occurs between the bushing and thrust washer (No c-clip to bushing contact can occur). Due to reduced bushing thickness we have been able to lower the rocker arms mass moment of inertia. All of these improvements will aid in extending service life and improve performance in all applications, including your daily driver.
*100% Less Needle Bearings
*Reduced Rocker arm Trunnion Harmonic Frequency Magnitude

Made in America!


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