MSD 8516 Pro-Billet Street Distributor AMC Jeep 232-258 Inline-6

The MSD 8516 Pro-Billet Distributor is purpose-built for AMC and Jeep inline 6-cylinder engines (199–258 c.i.), delivering race-proven ignition performance for street and performance applications. Starting life as a solid block of 6061-T6 billet aluminum, the housing is CNC-machined to tolerances as tight as .001 in., ensuring a flex-free, precision fit that holds accuracy across the entire RPM range.

At the heart of the distributor is MSD's maintenance-free magnetic pickup, paired with a precision reluctor to generate stable trigger signals from idle to redline — no adjustment required. The pickup plugs directly into any MSD 6, 7, 8, or 10 Series ignition control.

Key Features:

• CNC-machined billet aluminum housing and base (6061-T6) machined to within .001 in. accuracy
• Sealed ball bearing and long sintered bushing for high-RPM stability and increased endurance
• QPQ-coated polished steel shaft for reduced friction and corrosion resistance
• Maintenance-free magnetic pickup — no adjustment needed, plugs directly into MSD ignition controls
• Adjustable mechanical advance assembly with chrome moly steel advance plate and weights, QPQ coated for friction reduction
• Advance weight pins are staked and TIG welded to the plate for durability
• Nylon pads ensure smooth advance weight operation
• Vacuum advance canister included for improved fuel economy — can be removed or locked out
• Mechanical advance assembly can be locked out for use with crank trigger systems
• Easy-to-adjust timing curve using supplied springs and stop bushings
• Supplied with socket-style distributor cap, race rotor, and gear
• Distributor height: 8.125 in. from engine deck to top of cap
• CARB E.O. Approved (D-40-39) — 50-state emissions legal
• Must be used with an MSD Ignition Control (6, 7, 8, or 10 Series)

The MSD 8516 is sold individually and is compatible with AMC 199–258 c.i. inline 6-cylinder engines. CARB Executive Order number D-40-39 makes it legal for use on emissions-controlled vehicles in all 50 states when installed per the manufacturer's application guide.