All American Billet Serpentine Kits are a great way to clean up any engine compartment. Our kits come standard with High Quality Accessories and are made in the U.S.A. Brackets are made from 6061-T6 aluminum, and come in Machined Finish, Polished, Chrome, our exclusive Silverline Series and Black Anodized. Our kits come with the option of two different pulley styles, Classic Pulleys (no holes or cutouts) or our original pulleys (with the triangular cutouts), at no additional charge. Now, you can take the guess work out of installing a Magnuson Supercharger on your LS Engine. Our kit includes the supercharger drive pulley, water pump, 160AMP alternator, A/C compressor & Manifold, power steering pump, a single main bracket, spacers, 6-Rib belt, LSA Style tensioner, idler pulley & cover & a cover for the Magnuson tensioner pulley, a Fluidampr harmonic damper, and hardware in one easy-to-install kit (less supercharger). Shown in machined finish with cutout pulleys. ***Our LSM kit was designed for the LS 1, 2, 3, 6, or 7 engines with the # 01-23-06-171-BL Magnuson Supercharger. You will need to order the supercharger from Magnuson because it is not available from us***