BLOX Racing offers enthusiasts its high performance line of Tuner and Competition Series camshafts in several different profiles, as well as, its line of semi-blank camshaft cores. All camshafts are designed and manufactured using the latest software and casting technologies, then CNC-ground to precise tolerances and performance specifications. Each camshaft profile designed offers increased horsepower and torque across the entire RPM range. Tuner Series camshafts are designed using standard, OEM lobe designs while Competition Series camshafts are designed and cast with wider primary and secondary lobes. Although both types offer increased power and torque, Competition Series camshafts place less stress on the valvetrain and provide greater stability at extreme RPM's. Consequently, all camshafts are cast using the same materials and standards as OEM sources. Semi-blank camshaft cores are also available for more serious enthusiasts and engine builders. Semi-blank camshaft cores provide a starting point for those that want to grind their own specifications and profiles. Each semi-blank camshaft core is made using the exact standards as Tuner and Competition Series camshafts. This is a great alternative when certain or specific specifications and profiles are not made available. BLOX Racing recommends upgrading to its high compression valves, heavy duty valve springs, and Ti retainers on certain applications.