Menu

Shop

Garage

Cart

Account

Product Summary

Chevy Small Block V8, Chevy Big Block V8, Slip Collar

  • Has a CNC machined billet aluminum housing and Dupont Rynite base
  • Special nylon pads ensure smooth operation of the advance weights
  • Features an easy-to-adjust mechanical advance is mounted on top of the shaft
  • The advance plate and weights are fine blanked from Chromoly steel and QPQ coated for friction reduction
  • A maintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm range

Key Specs

MFG. Part #85561
BrandMSD
Cap TypeHEI / Male

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Details

If you have a slightly taller block or have decked the heads, the distance between the distributor mounting pad and the cam gear/oil pump drive may be different. MSD offers these Distributor with an adjustable slip collar with 1.5” of adjustment so you can be sure the distributor is installed correctly. The distributor shares the same features of the standard Pro-Billet Chevrolet model including a ball bearing guide, long sintered lower bushing, oil seal, and an adjustable mechanical advance assembly. The maintenance-free magnetic pick-up in the billet base of the distributor triggers the MSD CD Ignition box (not included). Fits Small Block or Big Block Chevy V8.

  • CNC machined billet aluminum housing and billet aluminum base
  • Easy-to-adjust mechanical advance with supplied springs and stop bushings
  • 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 and extra long sintered bushing
  • Advance plate and weights are fine blanked from Chromoly 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
  • 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
  • Supplied with an HEI style distributor cap and rotor (accepts MSD Cap-A-Dapts)

Charts

Specs

  • Cap has HEI-style terminals 
  • Slip collar has 1.5" of adjustment
  • Iron distributor gear

Warranties

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Specifications

KEY SPECS
MFG. Part #85561
BrandMSD
Cap TypeHEI / Male
GENERAL
External Ignition Box RequiredYes
Cap Terminal StyleHEI / Male
Advance TypeMechanical
Trigger StyleMagnetic
Hall EffectNo
Sync SignalNo
Trigger SensorsSingle
Gear MaterialIron
Gear RotationStandard
Ignition Box RequiredYes
Mechanical Tach DriveNo
Slip CollarYes
Housing MaterialBillet Aluminum
Housing FinishNatural
Rotor RotationClockwise
Marine UseNo
Sold in QuantityEach
GTIN Code085132855612