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#5478489
MSD 8489 Chevy Crab Cap Crank Trigger Distributor
$348.95
each
Factory Shipped
$388.00
Save $39.05
This part will be shipped by the manufacturer. We estimate this item will ship on or before May 22nd.
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Product Summary
External Ignition Box Required, HEI / Male Cap Type
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Key Specs
| MFG. Part # | 8489 |
| Brand | MSD |
| Cap Type | HEI / Male |
| Advance Type | None |
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Need To Know
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MSD 8489 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 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.
CARB Warning
For race/ off road use only
CARB Warning
For race/ off road use only
Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
MSD 8489 Specifications
MSD 8489 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 8489 |
| Brand | MSD |
| Cap Type | HEI / Male |
| Advance Type | None |
| GENERAL | |
| External Ignition Box Required | Yes |
| Cap Terminal Style | HEI / Male |
| 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 |
| Sold in Quantity | Each |
| GTIN Code | 085132084890 |