Chev Small/Big Block, Digital HEI Module and High Energy Coil

MSD83653

D83653

A complete performance HEI distributor upgrade for Chevy V8 engines Easy-to-adjust mechanical advance with supplied springs and stop bushings Vacuum advance canister for improved economy (can be locked out) CNC machined billet aluminium housing and billet aluminium base Polished steel shaft is QPQ coated and guided by a sealed ball bearing Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction Mechanical advance assembly can easily be locked out Advance weight pins are staked and tig welded to the plate Nylon pads ensure smooth operation of the advance weights Special oil tract improves lubrication to the distributor and cam gear Supplied with a 7.5 amp, single spark, inductive discharge ignition module, PN MSD8364, and HEI Coil, PN MSD8225 Full spa rk Supplied with brass terminal distributor cap and rotor. Designed to replace GM HEI Distributors that use a 4-Pin ignition module. The Chevrolet HEI Distributor is a favourite for muscle cars, street rods and even circle track racers. The integrated coil keeps under-hood wiring clean, and for race cars, the idea of running one wire to the distributor keeps things simple. However, when it comes to performance, the stock HEI falls short. MSD answers the need for a strong, accurate and high performance HEI with our Pro-Billet HEI. The distributor is supplied with our Digital HEI Module and Coil so there is plenty of spark energy combined with improved dwell and timing control. Tig welded on top of the distributor shaft is MSD adjustable centrifugal advance assembly. Three sets of springs and four stop bushings let you dial in up to 24 different timing curves to match your driving needs. Plus, there's a vacuum advance for those concerned with economy. All of this is precision and great looking CNC machined housing. The distributor is supplied with our new cap, rotor and coil cover and heavy duty gear so it is ready to install in your engine!