BTR Brian Tooley Racing TRUCK NORRIS Camshaft For 1999-2013 GM Gen3/4 LS Truck Engines 4.8, 5.3, 6.0, 6.2 Truck Norris Specs: 212/22X .552"/.552" 107 LSA 3-Bolt Pattern The Truck Norris will deliver a roundhouse kick in the pants to your 1999-2013 GM V8 Truck or SUV! Developed from hundreds of hours of in-house cam lobe design and dyno testing, this camshaft has more power and torque everywhere in the curve compared to BTR's legendary V2 truck cams. It has an idle sound similar to more aggressive truck camshafts, yet will behave well with stock torque converters. If installing in an engine originally equipped with a 1-bolt camshaft, a 3 bolt conversion kit will be required. MAKE IT A KIT! This Kit Includes: Brian Tooley Racing Truck Norris Camshaft, Brian Tooley Racing LS Beehive Springs, Brian Tooley Racing 7.400" LS Chromoly Pushrods & OEM Style Hat Valve Seals BTR Brian Tooley TRUCK NORRIS Camshaft For 1999-2013 GM Gen3/4 LS Truck Engines 4.8, 5.3, 6.0, 6.2 Specs: 212/22X .552"/.552" 107 LSA, 3 Bolt Pattern The Truck Norris will deliver a roundhouse kick in the pants to your 1999-2013 GM V8 Truck or SUV! Developed from hundreds of hours of in-house cam lobe design and dyno testing, this camshaft has more power and torque everywhere in the curve compared to BTR's legendary V2 truck cams. It has an idle sound similar to more aggressive truck camshafts, yet will behave well with stock torque converters. VVT engines will require a VVT delete kit. If installing in an engine originally equipped with a 1-bolt camshaft, a 3 bolt conversion kit will be required. MAKE IT A KIT! Our kit options take the guesswork out and include the following: Camshaft only: BTR Truck Norris Camshaft by itself. Camshaft, Springs and Hat Seals: BTR Truck Norris Cam, high quality beehive springs, OEM style hat valve seals. Camshaft, Springs, Hat Seals and Pushrods: BTR Truck Norris Cam, beehive springs, hat seals and 7.400" long, 5/16" Chromoly Pushrods with .080" wall thickness. Gasket kit: Includes Timing cover gasket, water pump gaskets, front crankshaft seal and new damper bolt