Powermaster GM Original Look 12SI Alternator - 150 amps - 12V - 1-Wire - Single V-Belt Pulley - Straight Mount - Black Powder Coat - GM H763CBFL Fully assembled or bare heads

Fully assembled or bare heads can be ordered with combustion chambers matched to your bore size

1977-1978 Chevrolet C10 Custom Deluxe CID 305 Naturally Aspirated GAS

1957-1989 Mercury Colony Park

1969-1970 Pontiac Tempest

GM A-Body / F-Body 1965-81

Powermaster GM Original Look 12SI Alternator - 150 amps - 12V - 1-Wire - Single V-Belt Pulley - Straight Mount - Black Powder Coat - GM H763CBFL Fully assembled or bare headsPowermaster Alternator 57294 12si 140 Amp w 1 V Belt Pulley Baffle Charge Wire OE Look Black Ultimate Custom Billet Look At Affordable Prices Smooth Die Cast Housing w Teardrop Design Smooth Back w Special Powermaster Vents Gold Battery Post Proof Of Performance Tags Powermaster produces alternators and starters for both street rod and racing applications. They also offer related accessories, including brackets, wiring harnesses, pulleys, and drive