Fits 400, 430 and 455 Buick engines. Must be used with an MSD 6, 7 or 8-series ignition.

Part Number: 8517

bushing hold this shaft stable at any rpm. This distributor uses a high-output magnetic trigger to fire an MSD Ignition Control. Accurate trigger signals and spark delivery are the responsibility of the QPQ-coated steel shaft. A sealed ball bearing and long sintered An adjustable mechanical advance mechanism is mounted on top of the shaft. Nylon pads ensure smooth movement of the fine balanced weights for accurate timing advancement. A variety of advance stop bushings and springs are supplied so you can dial-in a custom curve.

Features and Benefits

• Polished steel shaft is QPQ coated and guided by a sealed ball bearing
• Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
• CNC machined billet aluminum housing and billet aluminum base
• Mechanical advance assembly can be locked out for crank trigger systems
• Easy-to-adjust mechanical advance with supplied springs and stop bushings
• Must be used with an MSD Ignition Control
• No CARB Exemption Order Number