Small/Big Chevy, Magnetic Trigger, Vacuum Advance, Compact Tach Drive Assembly

MSD8572

D8572

CNC machined billet aluminium housing and billet aluminium base Maintenance free magnetic pick-up and precision reluctor create stable trigger signals throughout the rpm range. Easy to adjust mechanical advance with supplied springs and stop bushings. 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. Advance weight pins are staked and tig welded to the plate. Nylon pads ensure smooth operation of the advance weights. Mechanical advance assembly can be locked out for crank trigger systems. 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 Must be used with D 6, 7, 8, or 10 Series Ignition Supplied with an HEI style distributor cap and rotor (accepts Cap-A-Dapts) Corvette owners can now replace their worn out Magna-Pulse distributors with this precision Pro-Billet Tach Drive Distributor. Advantages such as an accurate magnetic pick-up, oversized shaft, vacuum advance and a billet aluminium housing are just a few of the MSD advantages. Inside the billet housing, a sealed ball bearing and long sintered bushing guide a 0.500" steel shaft for high rpm accuracy. A special reluctor is mounted to this shaft and is responsible for triggering the magnetic pick-up. An adjustable mechanical advance assembly allows you to get the most performance out of your Vette's engine by custom tailoring a timing curve to fit your application. The tach drive assembly is compact to clear the firewall and linkage. It can be repositioned easily to fit different applications plus has a grease fitting for lubrication.