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MSD Ignition 85551 - MSD Pro-Billet Distributors

  • Distributor, Pro-Billet, Magnetic Trigger, Mechanical Advance, Chevy, Big/Small Block, Each
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  • Application Specific
  • Estimated Ship Date: Today
 
BrandMSD Ignition
Manufacturer's Part Number85551
Part TypeDistributors
Product LineMSD Pro-Billet Distributors
Summit Racing Part NumberMSD-85551
UPC085132855513
 
Computer-Controlled CompatibleNo
Trigger StyleMagnetic
Advance TypeMechanical
Cap StyleMale/HEI
Mechanical Tach DriveNo
Slip CollarNo
Gear MaterialSteel
Ignition Box RequiredYes
Distributor Rotor RotationClockwise
Distributor Cap ColorRed
Housing MaterialBillet aluminum
Housing FinishNatural
QuantitySold individually.
Marine UseNo
 

MSD Pro-Billet distributors share the same CNC machining techniques as the rest of the MSD distributor line. They feature a housing that is machined from high-quality 6061-T6 aluminum for durability and show-quality looks. Their oversized shaft receives a QPQ coating for friction reduction and corrosion resistance, with the added strength of two sealed ball bearings that guide the shaft accurately at well over 10,000 rpm. An extra-long sintered bushing replaces the ball bearing at the bottom of Chevrolet models. TIG-welded on top of the polished steel shaft is MSD's accurate mechanical advance assembly. The weights are supported by nylon pads that allow the advance to operate smoothly throughout the rpm range. For all-out racing, the advance mechanism can also be easily locked out. To accurately trigger the ignition, a high-output magnetic pickup is bolted to the base. This pickup produces a precise trigger signal that will never vary more than one degree at any rpm. A durable gear is installed for performance applications, and an MSD red cap with brass terminals and race rotor is supplied. They're available in standard and small diameter models for applications with limited clearance, and require the use of a separate ignition box such as an MSD 6, 7, 8, or 10 Series ignition.

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