LS3 Roller Rocker Arm Kit 1.72:1 Ratio

The Texas Speed & Performance LS3 Roller Rocker Arm Kit is a premium valvetrain upgrade engineered for Gen 4 LS engines equipped with rectangle port (LS3-style) cylinder heads. These steel rocker arms feature integrated roller tips, offering increased strength over factory components while simultaneously reducing friction and valve stem wear. The kit is designed as a direct bolt-on solution, retaining factory rocker arm pedestals, and provides an optimal balance of performance, durability, and weight. This kit boasts a 1.72:1 rocker ratio, which enhances valve lift and airflow compared to stock rockers, leading to improved engine breathing and overall performance. The high-strength steel construction ensures superior durability, and the roller tip design minimizes wear on the valve tips. A key benefit is the pre-installed TSP trunnion upgrade, which includes upgraded bearings for improved oiling, smoother operation, and extended service life compared to factory needle bearings. Key fitments for this rocker arm kit include LS3, L99, L92, and LSA 6.2L engines, as well as 2007+ 6.0L L96, L76, L77, and LY6 engines. They are specifically designed for rectangle port LS heads with casting numbers 821, 823, 5364, and 863. It is important to note that installing these rocker arms will require a change in pushrod length, with an approximate recommendation of .175" shorter than the current setup. Verifying proper pushrod length during installation is crucial for ensuring correct valvetrain geometry.