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Street Race Truck More... The Toolbox
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$282.95
$228.56
MSD 8489 Chevy Crab Cap Crank Trigger Distributor
MSD 8489 Chevy Crab Cap Crank Trigger Distributor

MSD 8489 Chevy Crab Cap Crank Trigger Distributor

HEI / Male Cap Type, HEI / Male Cap Terminal Style, None Advance Type, Bronze Gear Material

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MSD 8489 Chevy Crab Cap Crank Trigger Distributor
MSD 8489 Chevy Crab Cap Crank Trigger Distributor
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We estimate this item will ship on or before December 19th.
Part # 5478489
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$228.56
$282.95
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 5 business days for MSD to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

Details

External Ignition Box Required:
Yes
Cap Type:
HEI / Male
Cap Terminal Style:
HEI / Male
Advance Type:
None
Trigger Style:
Crank Trigger
Hall Effect:
No
Sync Signal:
No
Trigger Sensors:
Single
Gear Material:
Bronze
Gear Rotation:
Standard
Ignition Box Required:
Yes
Mechanical Tach Drive:
No
Slip Collar:
Yes
Housing Material:
Billet Aluminum
Housing Finish:
Natural
Marine Use:
No
MFG. Part #:
8489
Sold in Quantity:
Each
GTIN Code:
085132084890

Info

HolleyDAYS are here again! SAVE up to 20% on this part and hundreds of other Holley brands during the 2018 HolleyDAYS sale 11/15/18-12/31/18.

The MSD Crab Cap Distributors are built specifically for racing engines with almost no room for a distributor due to tunnel rams or blowers. The distributor is equipped with a special low-profile crab style distributor cap to allow it to fit in extremely tight areas. The housing features two optional O-rings at the bottom that improve oil control by preventing oil pressure loss. Also, a small oil bleed hole located in the base sprays oil on the distributor and camshaft gears to prevent excessive wear. Since this is a racing distributor, there is an adjustable slip collar to make up for engines that have had the distance between the mounting surface and the gear modified. Crowning this distributor is MSDs own Crab Cap! This cap incorporates spark plug style terminals for a better connection and grip to the plug wires.

Installation Instructions (PDF)

Installation Instructions (PDF)

Installation Instructions (PDF)

  • Designed to fit low in the block to clear firewall and intake combinations
  • CNC machined billet aluminum housing and Dupont Rynite base is designed for standard Chevrolet blocks
  • Adjustable slip collar for engines with modified deck heights
  • 0.500 taller for extra tall Chevrolet based engine blocks
  • Oversized polished steel shaft with a QPQ coating for friction reduction
  • Shaft is guided by a sealed ball bearing and an extra long sintered bushing
  • 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 small, low crab style distributor cap, rotor and bronze gear
  • Must be used with an MSD Crank Trigger and MSD Ignition Control
  • No CARB Exemption Order Number
  • Must be used with and MSD 6, 7, 8 or 10 Series Ignition.
  • Must be used with a Crank Trigger.
Some parts are not legal for use in California or other states with similar laws/regulations

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