Chevy V8 Distributor DistrChevy V8ProBilllockedcaprotor Chevy V8 Pro-Billet Distributor Locked-out from the factory. Must be used with an MSD 6, 7 or 8-series ignition. This strong, billet aluminum distributor is set up for engines that run locked-out timing or an MSD Timing Computer. With no advance assembly, the rotor plate is welded directly to the oversized shaft. A sealed ball bearing guides the top of the shaft while an extra long sintered bushing stabilizes the lower portion. Trigger signals are produced via a high-output magnetic pick-up. This pickup is extremely accurate and never requires adjustment. Since this distributor is designed primarily for race engines, an oversized (+.006") bronze gear is installed along with an adjustable slip collar for modified blocks, heads or intake manifolds. Designed primarily for race applications with no mechanical advance O-ring seals can be added to modified blocks to improve oil pressure control Adjustable slip collar mounting flange for engines with modified deck heights Supplied with a 0.006” oversized bronze gear installed CNC machined billet aluminum housing and billet aluminum base Will not accept a vacuum advance canister Must be used with an MSD 6, 7, 8, or 10 Series Ignition Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts) 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 Special oil tract improves lubrication to the distributor and cam gear