Description

MSD designed this 85703 Pro-Billet Distributor for Chevy small block as well as big block V8 engines. The housing is CNC-machined from 6061-T6 billet aluminum to exact tolerances. For stability well over 10,000 RPM, a sealed ball bearing as well as a long-sintered bushing supports the .500″ steel shaft.

This oversize shaft has a QPQ coating for friction reduction as well as resistance to corrosion. TIG-welded on top of this steel shaft, the mechanical advance mechanism can easily locked out for all out racing use! The supplied springs and stop bushings allow you to tune an advance curve to match your application.

Must be used with either an MSD 6, 7 or 8-series ignition.

MSD 85703 Pro-Billet Small Base Distributor Features:

• Fits Chevy Small as well as Big Block V8 engines
• Small Base Diameter for Clearance
• Distributor Cap Color: Black
  
• Housing Material: Billet Aluminum
• Trigger Style: Magnetic
• Advance Type: Mechanical
• Slip Collar: Yes
  
• Ignition Box Required: Yes
• Cap Style: Male/HEI
• Distributor Gear Rotation: Standard
• Distributor Gear Material: Iron
• Computer-Controlled Compatible: No
• Mechanical Tach Drive: No
• Marine Use: No
• CARB E.O. Number: D-40-39

From street cruisers to Top Fuel dragsters, MSD’s ignition systems have been the industry leader for over 40 years. MSD continues to push the envelope with cutting-edge ignition technology as well as intake manifolds and EFI systems.