MSD PRO-BILLET SMALL DISTRIBUTOR CHEV V8 MECHANICAL ADVANCE

Fist Chev small and big block. Small base diameter for extra clearance. Measures 1/2 in. smaller in diameter and over 1.0 in. shorter than standard distributors. Distributor is 5.625 - 6.375 in. tall from engine to top of distributor cap. MSD Pro-Billet distributors share the same CNC machining techniques as the rest of the MSD distributor line. They feature a housing that''s machined from high-quality 6061-T6 aluminum for durability and show-quality looks. Their oversized shaft receives a QPQ coating for friction reduction and corrosion resistance, with the added strength of two sealed ball bearings that guide the shaft accurately at well over 10,000 rpm. An extra-long sintered bushing replaces the ball bearing at the bottom of Chevrolet models. TIG-welded on top of the polished steel shaft is MSD''s accurate mechanical advance assembly. The weights are supported by nylon pads that allow the advance to operate smoothly throughout the rpm range. For all-out racing, the advance mechanism can also be easily locke