MSD Pro-Billet Ready-To-Run Distributor with Vacuum AdvanceHolden 253-304-308 (Will not fit Tunnel Ram or EFI Manifolds)Brand: MSDPart Number: MSD85891Description:
- Simple and clean installation with only three wires to connect
- Powerful built-in module produces a 7.5 amp single spark through high rpm
- Easy-to-adjust mechanical advance with supplied springs and stop bushings
- Vacuum advance canister for improved economy (can be locked out)
- CNC machined billet aluminium housing and billet aluminium 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
- 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
- Supplied with small diameter cap with HEI style terminals and race rotor
- Does not require an MSD Ignition Control
- Includes built-in Rev Limiter
- Note: Recommended coil is MSD8207
Inside the billet housing there is a high-output ignition module. When the maintenance-free magnetic pick-up signals the module to fire, up to 7.5 amps is sent to the coil where a powerful spark is created. This improved spark output results in quick starts, snappy throttle response and terrific driveability. The distributors are equipped with a vacuum advance canister for cruising economy. Plus, there is a mechanical advance assembly that is mounted on top of the distributor shaft making it easy to adjust the advance to meet your needs. Another great feature of the Ready-to-Run Distributors is their simple installation. All you need to do is connect three wires and you'll be cruising.
