AlternatorPro Series Alternator KitPro Series Alternator Kit; CS121; Snug Mount; 100 Amp; Incl. Alternator PN[8072]/Alternator Pulley [181]/Crank Pulley [293]/Bracket [881]/Belt [7280]; For Drag Racing Use Only;SPECIFICATIONS:Amperage: 100 AMPFEATURES:Fits Small Block Chevy100 Plus Amps At Top End/60 Plus Amps At IdleMachined From Billet Aluminum For Light Weight And DurabilityHardcoat Anodized Pulleys For DurabilitySnug Mount On Driver SideBracket Pre-assembled For Your ConvenienceEasy to install. Solves low voltage problems.Manufacturer of starters and alternators for racing and show cars