GT21 LS Series Hydraulic Roller Camshaft

The Lingenfelter GT21 LS Series Camshaft is a hydraulic roller camshaft designed for LS7 engines. It features 243/259 duration at .050 lift and .691/.702 lift with a 1.8 rocker and 112 lobe separation angle. This camshaft is ground on induction-hardened cores for durability and is intended for 427 CID LS7 Z06 Corvette applications with a six-speed manual transmission.

Lingenfelter has conducted extensive engine dyno testing to develop street camshaft profiles for the LS7 engine. The GT21 series camshaft is designed to produce excellent power and a rough idle, making it suitable for daily-driven C6 Corvette Z06 applications and is used in their LS7 660 HP engine packages. It can also be used in other 427 CID LS7 cylinder head and intake applications with manual transmissions or automatic transmissions equipped with a loose torque converter. Spring and retainer upgrades are required.