For 90 degree V6, Even-Fire 4.3L engines. Must be used with an MSD 6, 7 or 8-series ignition.

Part Number: 8597

Starting on the inside, a 0.500" oversized steel shaft spins in a sealed ball bearing and sintered bushing for long endurance and accurate spark delivery throughout the entire rpm range. Mounted on top of the shaft is an easy-to-adjust chro-moly mechanical advance assembly. Different advance springs and stop bushings are supplied so you can choose from 24 curves. A maintenance-free magnetic pick-up provides accurate trigger signals to your MSD Ignition Control. A precision-manufactured reluctor that is connected to the shaft is responsible for triggering the pick-up. The distributor is topped off with a high quality black cap and Race Rotor.

Features and Benefits

• Advance weight pins are staked and tig welded to the plate
• Special oil tract improves lubrication to the distributor and cam gear
• CNC machined billet aluminum housing and billet aluminum base
• Maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range
• Polished steel shaft is QPQ coated and guided by a sealed ball bearing and extra long sintered bushing
• No CARB Exemption Order Number
• Nylon pads ensure smooth operation of the advance weights
• Mechanical advance assembly can be locked out
• Easy-to-adjust mechanical advance with supplied springs and stop bushings
• Must be used with an MSD Ignition Control
• Will not accept a vacuum advance canister
• Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
• O-ring seals can be added to modified blocks to improve oil pressure control•  Supplied with socket style distributor cap and rotor