MSD Pro-Billet Small Diameter Chevy Distributor - 85701

The smallest diameter distributor made by MSD for tight clearances. This magnetic pickup distributor measures 1/2" smaller in diameter and over 1" shorter than standard distributors.

Part Number: 85701

Proven performance features include a high output magnetic pick-up and precision machined reluctor for accurate ignition triggering. A fully adjustable mechanical advance allows you to tailor the advance curve to your specific application. This Chevy distributor is the smallest ever built by MSD! It is specifically designed for racers and street rodders with space limitations due to firewall interference, blowers or oversized intake manifolds such as tunnel rams. It measures 1/2" narrower and over 1" shorter than a standard distributor.

Features and Benefits

• Supplied with small diameter HEI style distributor cap and rotor
• Easy-to-adjust mechanical advance with supplied springs and stop bushings (except locked out versions)
• Nylon pads ensure smooth operation of the advance weights
• Will not accept a vacuum advance canister
• Mechanical advance assembly can be locked out for crank trigger systems
• CNC machined billet aluminum housing is 1/2” smaller in diameter and over 1” shorter than conventional Chevy V-8 distributors with the “points” type cap
• Advance weight pins are staked and tig welded to the plate
• Special oil tract improves lubrication to the distributor and cam gear
• Adjustable slip collar mounting flange for engines with modified deck heights
• Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra-long sintered bushing
• O-ring seals can be added to modified blocks to improve oil pressure control
• Must be used with an MSD 6, 7, 8, or 10 Series Ignition
• Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
• Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction