Eng Rocker Arm Pivot

This new 1/2" Rocker Stud and Trunnion Retro-Fit Kit greatly increases the stiffness and stability of any SBC or BBC Ultra Pro Magnumâ„¢ or Ultra Pro Magnumâ„¢ XD Rocker valve train far beyond that of a 7/16" Stud.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 Magnumâ„¢ or Ultra Pro Magnumâ„¢ 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 Magnumâ„¢ or old Hi-Tech Stainless Steel Rockersâ„¢

Provides a stiffer valve train to achieve maximum valve motion in SBC or BBC engines featuring Ultra Pro Magnumâ„¢ or Ultra Pro Magnumâ„¢ XD Rockers
Designed first for NHRA Stock Eliminator

Additional Information

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.

Part Type

Engine Rocker Arm Stud

Product Overview

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.

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Product Details

Product Downloads

#	Document Type	Download
1.	Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Rocker Arm Studs, Steel Alloy, 7/16-14 in. Base Thread, 1.75 in. Effective Stud Length, Kit

COMP Cams 1/2 in. rocker stud and trunnion retrofit kits provide a stiffer valvetrain to achieve maximum valve motion in SBC or BBC engine applications utilizing COMP Cams Ultra Pro Magnum or Ultra Pro Magnum XD rocker arms. They were originally designed for applications competing in the NHRA Stock Eliminator class, but are a great choice for anyone whose sanctioning body's rules do not allow stud girdles. The kits feature 1/2 in. ARP rocker arm studs, 1/2 in. trunnions, 1/2 in. polylocks, new bearings, and new snap rings. They include everything required to switch over to the new studs and freshen and rebuild your rockers at the same time. The COMP Cams 1/2 in. rocker stud and trunnion retrofit kits can also be used to retrofit COMP Cam Pro Magnum or Hi-Tech stainless steel rocker arms.