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5L L4 (4G15/135950) 11/06-12/08
These can be used for activating a trans brake
Great for the race track and Summernats
No comparable product has these critical features
Billet Bearing Plates (TBS Cast and TBS Billet Case Only)
GM LS1 OE ROCKER ARM SET, STRAIGHT DESIGN, 1.7 RATIO Size_-3AN 5L L4 (4G15/135950) 11/06-12/08GM LS1 OE Rocker Arm Set Straight Design, 1. 7 Ratio, GM12681275 These Aeroflow Performance OEM GM LS rocker arms feature an upgraded trunnion and install easily on your LS cylinder heads without any modifications and a direct OEM (GM12681275) replacement rocker. The rocker is a pedestal mount, roller fulcrum style, and are made of ductile iron construction. Each rocker also features an oil slot design to priority feed the roller needle bearings and