S Series 170a racing alt - 63-85 GM - 1 wire - Polished 4.3L 120 of an inch or

120 of an inch or 3 mm total thickness)

-Sky High Car Audio Distro Block with 3 Mini ANL fuses (no ring terminals required)

Sensitivity: 90dB

The S series of 6 phase hairpin stator alternators offers incredible output in a compact and durable package

Thick black foil with metallic blue/purple logos

S Series 170a racing alt - 63-85 GM - 1 wire - Polished 4.3L 120 of an inch orThe S series of 6 phase 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 airflow ensure much better durability than standard Delco based alternators, even in severe conditions. This custom designed housing directly replaces standard Delco 10DN, 10SI and 12SI alternators on most 1963