MSD Distributor Chevrolet V8, Pro Billet, w/Cap, Rotor

Part Number: 85551 -Race ready rotor is molded from Dupont Rynite material and features a screwed-down rotor tip, deep skirt and thick vanes to prevent ionization and spark scatter. -The chromoly mechanical advance assembly is easily accessible for quick timing curve adjustments. -Different advance springs and stop bushings are supplied to dial-in a timing curve to match your application. -Maintenance-Free magnetic pickup and a precision reluctor create an accurate trigger signal to the MSD Ignition Control at all engine rpm. -A combination of a sealed ball bearing (some models use two) and an extra long sintered bushing guide the distributor shaft for high rpm stability. -A steel shaft is polished and QPQ coated creating an extremely durable, low friction, corrosion resistant shaft. -A billet of 6061-T6 aluminum is CNC-machined into a precise flawless housing with incredible strength