Brian Tooley Racing - GEN 3 & 4 LS Stage 2 Truck Cam

The Brian Tooley Racing (BTR) Stage 2 NSR (No Springs Required) Camshaft is engineered for GM Gen III/IV LS-series truck engines, offering substantial performance improvements while allowing the reuse of factory valve springs and pushrods. Ideal for 4.8L to 6.2L engines, this camshaft delivers increased torque and horsepower across the RPM range, enhancing towing capabilities and overall drivability. With a noticeable yet mild idle lope, it maintains OEM-like driving characteristics when properly tuned. This camshaft is a three-bolt design and is compatible with stock torque converters. Please note that high-mileage engines may still benefit from valve spring replacements for optimal performance. ([michiganmotorsports.com](https://www.michiganmotorsports.com/camshafts-brian-tooley-btr/brian-tooley-racing-stage-2-truck-nsr-no-springs-required-ls-camshaft-for-gen-3-4-ls-4-8-5-3-5-7-6-0-6-2-ls1-1999-2013-v8-btr-cam/?srsltid=AfmBOook1IkbO_MZXIxBYPr3dLrxmNB_Cevgyy4al7Eu2WR0k44D1Mqx&utm_source=openai))