5.3 LS Stroker Rotating Assembly Kit

The BTR 5.3 LS Stroker Rotating Assembly Kit is engineered for performance enthusiasts looking to enhance their GM LS engine. This kit offers a significant increase in displacement, enabling greater power output potential. Customers can customize their assembly by selecting from different bore sizes (3.800" or 3.780") and specifying a 4.000" stroke with a 6.098" rod length. The included pistons feature an 8CC dish, contributing to the overall compression ratio. The kit includes a BTR forged crankshaft available for GM 24X or 58X applications. Options for main and rod bearings from reputable brands like ACL, Clevite, and King are available, including standard and .001" extra clearance options to precisely tune oil clearances. MAHLE premium piston rings are also offered for specific bore sizes, ensuring optimal sealing and performance for 1999-2013 4.8/5.3 LS engines. Additional options for balancing the rotating assembly and break-in oil are also available to complete the build.