1976-1980 Chevrolet C20 V8 6.6L 12si High Output Alternator Pulley:6-Rib Serpentine Pulley This is a direct fit

This is a direct fit high-output alternator for the 1982-1986 GMC K3500 6

This is a direct fit high-output alternator for the 1970-1971 Chevrolet Chevelle 6

8 Volt GM Style Internal Regulator with one wire connection

Do I need a bigger alternator to run these cables

1976-1980 Chevrolet C20 V8 6.6L 12si High Output Alternator Pulley:6-Rib Serpentine Pulley This is a direct fitFitment: This is a direct fit high output alternator for the 1976 1980 Chevrolet C20 6. 6L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high output alternator, and the other side will plug into the factory plug. NOTE: If you require charging at a certain voltage setpoint, we offer a selection