Brian Tooley PDS Stage 2 Torque Supercharged LS Camshaft Fits Supercharged 1997-2013 LS Based Engines 5.7L 6.0L. 6.2L Specs: 221/24x .619"/.617" 113LSA, 3 Bolt Pattern This new version of Brian Tooley Racing's Stage 2 Positive Displacement Supercharged camshaft makes more power and torque everywhere in the curve compared to the previous legendary PDS cams. Developed in house, BTR's engineers went back to the drawing board and found more power and torque even with the use of less intake duration. These new BTR lobe designs were Spintron and Engine Dyno tested to achieve the highest overall power curve while also maintaining strict valvetrain stability and durability standards. Ideal for LSA engines, but will also work great on any 5.7L, 6.0L or 6.2L LS-Based engine with a Magnuson, Whipple or LSA supercharger.