MSD Performance (85557): Pro-Billet Distributor with Black Cap for Chevy V8

The most popular performance distributor from MSD Performance is now available with a black cap that includes 316 stainless steel terminals. The housing is machined from 6061-T6 billet aluminum on a state-of-the-art CNC machine to achieve exact tolerances. The 85557 Pro-Billet distributor offers high-RPM stability, a QPQ coating to reduce friction and corrosion, a high-output magnetic pickup for accurate ignition triggering, and no moving parts to wear or adjust. Plus, MSD has included different springs and stop bushings for application-specific curve tuning.

Note: For use with MSD 6-, 7-, or 8-series ignition. Will not accept a vacuum advance canister.

Features

  • CNC-machined billet aluminum.
  • New HEI-style black cap with stainless steel terminals and rotor (accepts Cap-A-Dapts).
  • O-ring seals can be added to modified blocks.
  • Special oil tract improves lubrication to distributor and cam gear.
  • Nylon pads ensure smooth advance weight operation.
  • Mechanical advance assembly can be locked out.
  • Reduced friction on advance plate and weights.
  • Maintenance-free magnetic pickup and precision reluctor.
  • Easy-to-adjust mechanical advance.
  • No CARB exemption order number.

MSD Performance Pro-Billet Distributor with Black Cap 85557

Ready to buy? Need help with the install? To find your nearest Parts Pro affiliate, see our Store Locator. Or join the conversation at the Parts Pro Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of manufacturers with whom it has a business relationship.

MSD Performance (85555): V8 Pro-Billet Distributor for Chevy (Black)

The most popular performance distributor in the MSD Performance lineup is now available in black! The 85555 V8 Pro-Billet Distributor for Chevy, which must be used with an MSD 6-, 7-, or 8-series ignition, features housing that is CNC machined from a billet of 6060-T6 aluminum to achieve exact tolerances. It also features a high-output magnetic pick-up—the most accurate way to trigger your ignition. With no moving parts to wear or adjust, the pick-up is maintenance free!

Note: No CARB exemption order number is available for this product. Will not accept a vacuum advance canister. Must be used with an MSD ignition control.

Features

  • CNC-machined billet-aluminum housing and billet-aluminum base.
  • Supplied with an HEI-style distributor cap and rotor (accepts Cap-A-Dapts).
  • O-ring seals can be added to modified blocks to improve oil pressure control.
  • Special oil tract improves lubrication to the distributor and cam gear.
  • Nylon pads ensure smooth operation of the advance weights.
  • Advance weight pins are staked and TIG welded to the plate.
  • Mechanical advance assembly can be locked out for crank trigger systems.
  • Advance plate/weights are fine blanked from chrome-moly steel and QPQ coated.
  • 500” polished steel shaft guided by sealed ball bearing and extra-long sintered bushing.
  • Maintenance-free magnetic pickup and precision reluctor.
  • Easy-to-adjust mechanical advance with supplied springs and stop bushings.

MSD Performance (85555): V8 Pro-Billet Distributor for Chevy (Black)

Ready to buy? Need help with the install? To find your nearest Parts Pro affiliate, see our Store Locator. Or join the conversation at the Parts Pro Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of manufacturers with whom it has a business relationship.