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MSD 85551 Chevy Billet Distributor
MSD 85551 Chevy Billet Distributor

MSD 85551 Chevy Billet Distributor

Chevy Small Block V8, Chevy Big Block V8, External Ignition Box Required, HEI / Male Cap Type

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MSD 85551 Chevy Billet Distributor
MSD 85551 Chevy Billet Distributor
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Part # 54785551
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$271.99
$302.95
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Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

Details

External Ignition Box Required:
Yes
Cap Type:
HEI / Male
Cap Terminal Style:
HEI / Male
Advance Type:
Mechanical
Trigger Style:
Magnetic
Hall Effect:
No
Sync Signal:
No
Trigger Sensors:
Single
Gear Material:
Iron
Gear Rotation:
Standard
Distributor Cap Color:
Red
Ignition Box Required:
Yes
Mechanical Tach Drive:
No
Slip Collar:
No
Housing Material:
Billet Aluminum
Housing Finish:
Natural
Rotor Rotation:
Clockwise
Emissions:
California EO Approved
Marine Use:
No
MFG. Part #:
85551
Sold in Quantity:
Each
GTIN Code:
085132855513

Info

You can't go wrong with the best selling MSD Billet Distributor! The housing is machined from a billet of 6061-T6 aluminum on a state-of-the-art CNC machine producing exact tolerances. For high rpm stability, a .500” steel shaft is supported by a sealed ball bearing and a long sintered bushing. This shaft also receives a QPQ coating for friction reduction and resistance to corrosion. A precision machined reluctor is attached to the shaft which triggers the magnetic pick-up mounted in the housing. This high output magnetic pick-up is the most accurate way to trigger your ignition. Plus, with no moving parts to wear or adjust, the pick-up is maintenance free! Just above the pick-up is MSD’s adjustable mechanical advance assembly. Different springs and stop bushings are supplied so you can tune an advance curve to match your application.

Fits Small Block or Big Block Chevy V8.

Instruction Sheet for 547-5551 (pdf) 

 

Notes

  1. Must be used with a CD Ignition Control (MSD 6, 7, 8 or 10 Series).
  2. Will not accept a vacuum advance canister.
  • 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)

Specs

  • Cap has HEI-style terminals
  • Iron distributor gear

Warranties

http://www.msdhelp.com/
Some parts are not legal for use in California or other states with similar laws/regulations

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