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Product Information

Product Details
Part No. 8489
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.

Product Features:
  • Must Be Used w/An MSD Crank Trigger And MSD Ignition Control
  • Supplied w/Small; Low Crab Style Dist. Cap/Rotor/Bronze Gear
  • O-ring seals can be installed for oil press. control (Mods only)
  • Special oil tract improves lubrication to the dist./cam gear
  • QPQ coated polished steel shaft; guided by sealed ball bearings
  • Oversized Polished Steel Shaft w/QPQ Coating
  • 0.500 in. Taller For Extra Tall Chevrolet Based Engine Blocks
  • Adjustable Slip Collar For Engines w/Modified Deck Heights
  • CNC machined billet aluminum housing and Dupont Rynite base
  • Designed to fit low in the block to clear firewall/intake combos
Specifications
Distributor Gear:
Bronze

Distributor Type:
Crank Type w/Mech. Tach Drive

Engine:
Chevy Big Block, Chevy Small Block
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