MSD 83831 Ford Y-Block Pro-Billet Distributor with Mechanical Advance

The MSD 83831 Pro-Billet Distributor is purpose-built for Ford Y-Block engines, delivering precise spark timing and reliable ignition performance. Replacing outdated breaker points with a maintenance-free magnetic pickup and precision reluctor, this distributor produces stable, consistent trigger signals across the entire RPM range. Note: Must be used with an MSD 6, 7, or 8-series ignition control.

Key Features:

• CNC-machined billet aluminum housing and base — engineered for durability and show-quality appearance
• Polished steel shaft with QPQ coating — guided by a sealed ball bearing for smooth, accurate operation and corrosion resistance
• Maintenance-free magnetic pickup and precision reluctor — creates stable trigger signals throughout the RPM range
• Adjustable centrifugal (mechanical) advance assembly — fine blanked from chrome moly steel and QPQ coated for friction reduction; lockable for use with crank trigger systems
• Nylon advance weight pads — ensure smooth operation of the advance weights
• Advance weight pins staked and TIG-welded to the plate — for long-lasting durability under high-performance conditions
• Vacuum advance canister — improves fuel economy under part-throttle driving; can be locked out for racing applications
• Distributor stands 7.5625 inches tall from engine deck to top of distributor cap
• Includes MSD red cap with brass terminals and race rotor

Installation Note: May contact the firewall seam on 1957–1959 full-size Ford vehicles. Verify clearance before installation. Legal for sale and use on uncontrolled (non-emissions-controlled) vehicles.