MSD 85551 - Chevy V8 Pro-Billet Distributor

Features

• CNC machined billet aluminum housing and billet aluminum base
• Easy-to-adjust mechanical advance with supplied springs and stop bushings
• 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
• Advance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reduction
• Mechanical advance assembly can be locked out for crank trigger systems
• Advance weight pins are staked and tig welded to the plate
• Nylon pads ensure smooth operation of the advance weights
• Special oil tract improves lubrication to the distributor and cam gear
• O-ring seals can be added to modified blocks to improve oil pressure control
• Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts)
• Must be used with an MSD Ignition Control
• Will not accept a vacuum advance canister
• No CARB Exemption Order Number
• Must be used with an MSD 6, 7, 8 and 10 Series Ignition.