BTR TRUCK NORRIS JR. CAMSHAFT 210/22X, .540"/.540", 111 LSA, 14% fuel lobe INTAKE LOBE LIFT @ TDC: 0.05000 Brian Tooley Racing is proud to introduce the next innovation in the GM performance truck industry. Our Gen V V6 truck camshafts were born from the demands of an ever changing market. From toy haulers to trucks turned street rods, our Gen V V6 cam is the most powerful on the market. The Truck Norris Jr. grind packs the same powerful punch as its father, the original Truck Norris. This camshaft is a great choice for those looking to delete DOD/AFM, or just add some pep to your trucks step. With great power gains and OEM driving characteristics, this camshaft works well with stock converters. Made In The USA! NOTE: This camshaft requires valve spring upgrade, part number BTR91120-12