Presenting a manual transmission camshaft for the Hemi 6.4 engine, the only camshaft compatible with Hellcat / 6.1 lifters correctly. Provides a noticeable performance increase of 20-30 horsepower in the 5.7 *without valve float* Compatible with all 5.7 and 6.4 Hemi engines with MDS camshaft system. All Dodge parts are also available Charger Chrysler Challenger Mustang Caprice