227/235 duration @ .050 lift - .614/.621 lift with 1.7 rocker 115 CL Great Muscle Car Sound
Extensive engine dyno testing at Lingenfelter has produced some of the best street camshaft profiles available for the LS1, LS2, LS3, LS6 engines. The Lingenfelter "GT12" camshaft was designed to produce excellent power and will give your car an aggressive muscle car idle while still offering street manners. The GT12 can be used in a automatic or six speed manual transmission equipped vehicles that are daily driven.
This camshaft was designed to be used in LS1, LS2, LS3 ,LS6 350 CID - 427 CID applications. Spring & retainer upgrades are a must with this camshaft. This cam can be installed in stock LS1, LS2, LS3 or LS6 engine with no changes to pistons if you install it straight up. It is not suggested to advance or retard this cam with stock pistons.