Sharing the CNC machining techniques with the rest of the MSD Distributor line, this Olds housing is machined from high quality 6061-T6 aluminum. Two sealed ball bearings guide the 0.500" shaft accurately through 10,000+ rpm.
Specifications:
- Category: Ignition
- Product Type: Distributor
- Engine Application: Oldsmobile 260, 307, 330, 350, 400, 403, 425, 455
- Color: Red
- Distributor Type: Magnetic Pickup
- Gear Material: Cast Iron, Melonized QPQ Coated
- Shaft: 0.500in, QPQ coated, two sealed ball bearings
- Housing: CNC machined 6061-T6 billet aluminum housing and base
- Cap: HEI-style red cap with brass terminals and race rotor (accepts Cap-A-Dapts)
- Warranty: Manufacturer's Limited 1 Year Warranty
- Part Number: 8566
Must be used with an MSD 6, 7, or 8-series ignition control. Will not accept a vacuum advance canister.
FAQ
What Oldsmobile engines fit the MSD 8566?
Olds 260, 307, 330, 350, 400, 403, 425, and 455 engines.
What ignition control does the 8566 require?
It must be used with an MSD 6, 7, or 8-series ignition control.
Is the MSD 8566 CARB legal?
No CARB Exemption Order Number is listed for this part.
How is the shaft supported?
By two sealed ball bearings guiding the 0.500 inch QPQ-coated shaft through 10,000+ rpm.
What cap comes with the 8566?
A red cap with brass terminals and a race rotor, which also accepts Cap-A-Dapts.

