Skip to main content
MSD

MSD 8489 Crab Cap Crank Trigger Distributor Red Cap

Part # 8489 Be the first to write a review

Compatible with Small or Big Block Chevy®. This product is not created or sold by Chevy®. Low-profile, tall block, racing distributor must be used with an MSD 6, 7 or 8-series ignition and a crank trigger.

MSD 8489 Crab Cap Crank Trigger Distributor Red Cap

In Stock
Free Shipping
$359.95
Add to Wishlist

4

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

    See Emissions Details
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 MSD's own Crab Cap! This cap incorporates spark plug style terminals for a better connection and grip to the plug wires.

Features:

  • Must be used with an MSD Crank Trigger and MSD Ignition Control
  • Supplied with small, low crab style distributor cap, rotor and bronze gear
  • 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
  • Shaft is guided by a sealed ball bearing and an extra long sintered bushing
  • Oversized polished steel shaft with a QPQ coating for friction reduction
  • 0.500” taller for extra tall Chevrolet based engine blocks
  • Adjustable slip collar for engines with modified deck heights
  • CNC machined billet aluminum housing and Dupont Rynite base is designed for standard Chevrolet blocks
  • Designed to fit low in the block to clear firewall and intake combinations
Brand MSD
Emission Code4
Product TypeDistributors
WarrantyManufacturer's Limited 1 Year
UPC085132084890
Manufacturer Part Number8489
Part Number8489
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Bulletin for Part# 8489
Addendum for Part# 8489
Instructions for Part# 8489
Manufacturer's Limited 1 Year: See Details
Reviews

    Your Review

    *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    MSD 8489 Crab Cap Crank Trigger Distributor Red Cap
    MSD 8489 Crab Cap Crank Trigger Distributor Red Cap
    $359.95