Product details:
LS Alternator Only Bracket Uses LS1 Camaro Crank Pulley Made in the USA from aerospace grade billet aluminum Includes: front/rear brackets, bolts, and spacers This will require Belt 6pk880 Will fit alternators from any LS engine except Corvette. 145 & 160 amp truck alternators require aprox 3/4" longer belt. Recomended and cheapest alternators for use with our kits are from a 97 silverado w/ 5.7L If using a "truck block" you must drill the second hole in the block (use drill template 551445). If using TRUCK crank pulley than usepart # 551512-3