Alternator-100 AMP GM Style 1-Wire Style Natural Finish Proform Carburetors this gauge remains conveniently positioned

this gauge remains conveniently positioned on the bolt during tightening

Fits 1965 to 1996 396-454 Big Block Chevy Engines

PROFORM soft-conforming aluminum gaskets easily conform to the collector flanges for a superior seal

Upgrade your PROFORM or Holley carburetors

Perimeter Mounting Pattern

Alternator-100 AMP GM Style 1-Wire Style Natural Finish Proform Carburetors this gauge remains conveniently positionedCan you tell the difference? Most alternators look nearly the same, and that is why what is on the inside is so critical. Reliability starts with how it is made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100 percent new for maximum longevity and optimum performance. After assembly each alternator is