The MSD GM Late Model HEI V8 distributor in black is the same drop-in billet replacement as the 8366, built for GM V8s using the small-cap distributor with a dual-connector external coil found in cars from 1987-1993 and trucks from 1987-1995. The CNC-machined housing includes an extra oil tract for improved lubrication to the cam and distributor gears, and a polished, QPQ-coated 0.500-inch steel shaft rides in a sealed ball bearing with an extra-long sintered bushing for stability. A factory-style ignition module accepts factory wiring, triggered by a high-output magnetic pickup.
Specifications:
- Color: Black
- Distributor Type: OE Replacement
- Gear Material: Cast Iron Melonized QPQ Coated
- Warranty: Manufacturer's Limited 1 Year Warranty
- Part Number: 83663
Fits GM V8s with small-cap distributor and dual-connector external coil, 1987-1993 cars / 1987-1995 trucks; Marine UL Certified and legal to install in all 50 states.
FAQ
What vehicles is the MSD 83663 designed for?
GM V8s using the small-cap distributor with a dual-connector external coil — 1987-1993 cars and 1987-1995 trucks.
How is the 83663 different from the MSD 8366?
It's the same drop-in billet replacement distributor, just finished in black instead of red.
Does the 83663 use factory wiring?
Yes, its factory-style ignition module plugs directly into factory wiring.
Is the MSD 83663 certified for marine use?
Yes, it's Marine UL Certified.

