Comp Cams 1/2-Inch Rocker Stud and Trunnion Retro-Fit Kit (10-19 6.0L Sierra 2500 HD)Find parts that fit my vehicle

Description. This new 1/2" Rocker Stud and Trunion 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.

The COMP Cams 1/2" Rocker Stud and Trunion 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 trunions, 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 Trunion Retro-Fit Kit can also be used to retro-fit old Pro Magnum or old Hi-Tech Stainless Steel Rockers.

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

Designed first for NHRA Stock Eliminator; perfect choice for rule packages that do not allow stud girdles

Features all parts & pieces needed to switch over to the new studs while freshening & rebuilding the rockers

Kit can also be used to retro-fit old Pro Magnum or Hi-Tech Stainless Steel Rockers

Fitment:

• 2010 GMC Sierra 2500
• 2011 GMC Sierra 2500
• 2012 GMC Sierra 2500
• 2013 GMC Sierra 2500
• 2014 GMC Sierra 2500
• 2015 GMC Sierra 2500
• 2016 GMC Sierra 2500
• 2017 GMC Sierra 2500
• 2018 GMC Sierra 2500
• 2019 GMC Sierra 2500

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