MSD Ignition Street Pro-Billet Distributor 84791

• The MSD Street Pro-Billet Distributor is built to provide race inspired ignition capability with accurate timing control and consistent spark delivery for high performance street applications
• Utilizes a maintenance free magnetic pickup and precisely engineered reluctor to activate an MSD Ignition Control, ensuring a steady trigger signal throughout the RPM range
• Features a vacuum advance unit to enhance cruising efficiency, with the option to lock it out for performance focused tuning
• Offers tunable mechanical advance using the included springs and stop bushings, allowing you to tailor the timing curve to your engine combination
• Constructed with a chrome moly advance plate and weights treated with a QPQ finish to lower friction, along with staked and TIG welded pins and nylon pads for smooth, reliable movement
• Incorporates a CNC machined billet aluminum housing, oversized QPQ coated steel shaft, sealed ball bearing support, and multiple gear and cap options to suit a wide range of setups
• Includes a 1-Year Warranty

High output street engines benefit from components that offer track tested strength while remaining dependable for everyday driving. Reliable spark delivery, stable trigger signals, and accurate timing adjustment are all essential to achieving consistent performance. Built for enthusiasts who want race inspired capability with street friendly manners, the MSD Street Pro-Billet Distributor provides a refined ignition solution for serious builds.

The MSD Street Pro-Billet Distributor utilizes a maintenance free magnetic pickup paired with a precision reluctor to generate a clean, consistent trigger signal for an MSD Ignition Control. An MSD Ignition Control is required for operation. Available configurations include a vacuum advance canister to support part throttle efficiency, and the vacuum advance can be locked out when tuning for performance applications. Mechanical advance adjustments are made using the included springs and stop bushings, allowing users to tailor the timing curve to their engine combination. The advance weight pins are staked and TIG welded for strength, while the advance plate and weights are fine blanked from chrome moly steel and treated with a QPQ coating to minimize friction. Nylon guide pads promote smooth advance movement throughout the RPM range.

An oversized polished steel shaft with QPQ treatment rides on a sealed ball bearing for enhanced stability, and a dedicated oil passage improves lubrication to both the distributor and cam gear. The housing and base are CNC machined from billet aluminum for durability and a precise fit, and the unit carries CARB E.O. approval. Depending on the specific model, options include an HEI style cap and rotor compatible with Cap A Dapts, or a compact diameter cap with HEI style terminals and race rotor designed to accept the 8441 Cap A Dapt. Certain versions are equipped with a steel gear suitable for hydraulic roller camshafts. For specialized setups, the mechanical advance assembly can be locked out for crank trigger systems, and O ring seals may be added to modified blocks to help manage oil pressure.

Combining precision machining, adjustable timing control, and a stable trigger system, this distributor is engineered to deliver consistent spark accuracy and durability for powerful street driven engines. Backed by a 1-Year Warranty.