1963 - 1985 with 12SI

170 amp racing alternator - 63-85 GM - Chrome (includes 2 pulleys)

The S series of 6 phase hairpin alternators offers incredible low RPM output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding...

170 amp racing alternator - 63-85 GM - Polished (includes 2 pulleys)

The S series of 6 phase hairpin alternators offers incredible low RPM output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding...

170 amp Racing alternator for 63-85 GM - Natural Finish (includes 2 pulleys)

The S series of 6 phase hairpin alternators offers incredible low RPM output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding...