Help is just a click away!
Click here to chat with a Speedway Team Member
💬
Online - Chat with us!
Chat
Products to Compare (max of 3)
X
Compare These Parts
Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
Customer Service
Since 1952
in
in
  • Expert Tech Support
  • Huge Inventory
  • Fast Shipping
Talk to the Experts. Call 800.979.0122
Shop By
Support
Account
Street Race Truck More... The Toolbox
Add to Cart
$295.99
$247.99
MSD 8489 Chevy Crab Cap Crank Trigger Distributor
MSD 8489 Chevy Crab Cap Crank Trigger Distributor

MSD 8489 Chevy Crab Cap Crank Trigger Distributor

Not Computer-Controlled Compatible, HEI / Male Cap Terminal Style, None Advance Type, Natural

0 Reviews | 2 Answered Questions
Factory Shipped
Ships FREE
Select your vehicle to verify fitment.
Select Vehicle
MSD 8489 Chevy Crab Cap Crank Trigger Distributor
MSD 8489 Chevy Crab Cap Crank Trigger Distributor
Zoomed In Image
We estimate this item will ship on or before August 24th.
Part # 5478489
Save 16%
$247.99
$295.99
each
Quantity:
Add to Cart
Call to Order
Add to Buildlist
Compare

Details
Reviews
Q&A
Articles

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

Computer-Controlled Compatible:
No
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

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

Related Products

More Like This

Reviews

Q & A

Videos & Articles
  • Looking for an easy performance upgrade to your ignition system? MSD's line of Ignition Control Boxes offer extreme improvements to drivability and high rpm applications. Here's a look at the differences between the 6 series line-up.
  • One of the most important parts of your racing operation is the engine. This article gives a detailed overview on how to maintain your engine to get the most out of it for as long as possible. Also learn some tips to prolong the life of your engine.
  • Speedway Motors has some great tips on how to get the best performance out of your ignition system. Let's take a look at the the GM HEI style distributor, possibly one of the most affordable performance distributors today.
  • Speedway Tech Zach discusses the Pertronix Ignitor III conversion in his '55 Chevy.

You May Also Like

Suggestions
Error
Note
Ok