Chevrolet Performance 12565308 Camshaft Assembly

The Chevrolet Performance 12565308 is the production camshaft assembly for the 2002-2004 LS6 5.7L V8 engine used in the Corvette Z06. It features a hydraulic roller profile with 204 degrees intake and 218 degrees exhaust duration at .050" lift, .550" intake and exhaust valve lift, and 117.5-degree lobe separation angle. The camshaft utilizes a 3-bolt timing gear attachment pattern compatible with Gen III LS engines. Manufactured to General Motors OEM specifications for direct replacement fitment and validated for durability in high-performance applications. Material construction is billet steel with induction-hardened lobes and journals. The assembly includes the camshaft only; timing gear, retainer, and bolt are separate components. This part supersedes earlier LS6 camshaft designs and serves as the standard service replacement for factory LS6 engines. Cross-references include ACDelco 12565308 and GM Genuine Parts 12565308.