COMP Cams Trunnion Kit1/2inUpm Type Rocker - 13706-KIT

1/2" Stud Upgrade Kit for Ultra Pro Magnum and Ultra Pro Magnum XD Rockers

Upgrade your Ultra Pro Magnum and Ultra Pro Magnum XD rockers to 1/2" studs with this kit. Complete with trunnions, bearings, snap rings, polylocks and studs, this kit can upgrade any of our Ultra Pro Magnum/XD rockers.

<b>This new 1/2" Rocker Stud and Trunnion Retro-Fit Kit greatly increases the stiffness and stability of any SBC or BBC Ultra Pro Magnum™ or Ultra Pro Magnum™ XD Rocker valve train far beyond that of a 7/16" Stud.</b>The COMP Cams 1/2" Rocker Stud and Trunnion Retro-Fit Kit provides a stiffer valve train to achieve maximum valve motion in SBC or BBC engine Applications utilizing Ultra Pro Magnum™ or Ultra Pro Magnum™ XD Rocker Arms. It is good for anyone looking for more stiffness with Stud mount Rockers. The kit was originally designed for Applications competing in the NHRA Stock Eliminator class, but it is a great choice for anyone whose sanctioning body's rules do not allow Stud girdles. Featuring 1/2" ARP Studs 1/2" replacement trunnions, 1/2" replacement polylocks, new replacement bearings and new replacement snap rings, the kit includes everything required to switch over to the new Studs and freshen and rebuild your Rockers at the same time. The COMP Cams 1/2" Rocker Stud and Trunnion Retro-Fit Kit can also be used to retro-fit old Pro Magnum™ or old Hi-Tech Stainless Steel Rockers™ <ul> <li>Provides a stiffer valve train to achieve maximum valve motion in SBC or BBC engines featuring Ultra Pro Magnum™ or Ultra Pro Magnum™ XD Rockers</li> <li>Designed first for NHRA Stock Eliminator

• For extreme duty and race applications
• Converts Ultra Pro Magnum and Ultra Pro Magnum XD Rockers to accommodate 1/2" rocker studs
• Increases stability and stiffness
• For extreme duty and race applications
• NHRA approved