Chevy V8 Pro-Billet Distributor

Locked-out from the factory. Must be used with an MSD 6, 7 or 8-series ignition.

PART# 85501

Suggested Retail: $326.95
Your Price:$293.95
Free Shipping on orders over $100*


This strong, billet aluminum distributor is set up for engines that run locked-out timing or an MSD Timing Computer. With no advance assembly, the rotor plate is welded directly to the oversized shaft. A sealed ball bearing guides the top of the shaft while an extra long sintered bushing stabilizes the lower portion. Trigger signals are produced via a high-output magnetic pick-up. This pickup is extremely accurate and never requires adjustment. Since this distributor is designed primarily for race engines, an oversized (+.006”) bronze gear is installed along with an adjustable slip collar for modified blocks, heads or intake manifolds.


  • Designed primarily for race applications with no mechanical advance
  • Will not accept a vacuum advance canister
  • Must be used with an MSD 6, 7, 8, or 10 Series Ignition
  • Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
  • Supplied with a 0.006” oversized bronze gear installed
  • O-ring seals can be added to modified blocks to improve oil pressure control
  • Special oil tract improves lubrication to the distributor and cam gear
  • Polished steel shaft is QPQ coated and guided by a sealed ball bearing
  • Adjustable slip collar mounting flange for engines with modified deck heights
  • Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
  • CNC machined billet aluminum housing and billet aluminum base
  • No CARB Exemption Order Number


Emission Code3
WarningCalifornia Proposition 65

Tech Resources

Parts & Kits


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

WARNING FOR 85501: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
*Free Shipping & Handling only offered to the continental US on orders over $100.