Proflow Billet is the ideal alternator. Whether it's a high wattage stereo system, accessory lights, winches for off-road or towing use, CB's, etc. – these alternators can handle almost anything. This alternator is a combination of an industrial alternator in an automotive housing. This alternator is a one of a kind hand built unit not a modified OEM alternator. We use a hand-wound stator, heavy duty custom rectifier, self-exciting regulator which allows an automatic cut-in for charging at the lowest RPM's. Note: This alternator was designed as a direct replacement for early style Delco alternators. No special brackets are required. Specifications Type of Unit: Dual Internal Fan. Estimated Amperage: 160Amps.. Regulator: Internal Self-Exciting. Voltage: 14.9. Weight: 16 Lbs. Comes with Aluminium Single V or 6-Rib Groove Pulley's and Holden Conversion spacer kit .