Brand: MSD Ignition
Manufacturer's Part Number: 8516
Part Type: Distributors
Product Line: MSD Pro-Billet Street Distributors
Automotive Fittings Part Number: MSD-8516
UPC: 085132085163
Distributor Cap Included: Yes
Distributor Cap Style: Male/HEI
Distributor Cap Type: Small cap
Ignition Coil Included: No
Ignition Module Included: No
Computer-Controlled Compatible: No
Trigger Style: Magnetic
Advance Type: Vacuum and mechanical
Ignition Box Required: Yes
Mechanical Tach Drive: No
Slip Collar: No
Distributor Gear Material: Iron
Distributor Gear Rotation: Standard
Housing Material: Aluminum
Housing Finish: Natural
Marine Use: No
Remanufactured: No
Quantity: Sold individually.
Notes: Distributor is 8.125 in. tall from engine to top of distributor cap.
CARB EO Number(s): D-40-39
Emissions: California EO Approved
Description:
MSD Pro-Billet Street distributors are a popular choice for those who desire race-proven performance for their street machine. A vacuum advance canister provides improved economy, and the proven MSD mechanical advance mechanism allows you to dial in a timing curve to fit your needs. As always, an advance kit of springs and stop bushings is included. The housing features an all-billet 6061-T6 aluminum design for accuracy to within .001 in. An oversized steel shaft is QPQ-coated for low friction, and rides in sealed ball bearings at the top and bottom of the distributor.

An extra-long sintered bushing replaces the ball bearing at the bottom for Chevrolet models. This combination keeps the shaft steady, creating accurate spark delivery at any rpm. They rely on a magnetic pickup to trigger the MSD ignition control, which delivers the powerful sparks to the coil. This pickup is extremely accurate and never needs adjusting. Pro-Billet Street distributors require the use of a separate ignition box, such as an MSD 6, 7, 8, or 10 Series ignition. Order the model recommended for your vehicle and engine application.