The MSD Pro-Billet HEI distributor is designed to replace GM HEI distributors that use a 4-pin ignition module, delivering the accuracy and performance that a stock HEI can't match. It's supplied with MSD's own Digital HEI Module (PN 83647) and HEI Coil (PN 8225) for plenty of spark energy along with improved dwell and timing control, with full spark output to 9,000 rpm. Tig-welded atop the distributor shaft is MSD's adjustable centrifugal advance assembly — three sets of springs and four stop bushings allow up to 24 different timing curves — plus a vacuum advance for economy. It's built around a precision CNC-machined housing and supplied with a new cap, rotor, coil cover, and heavy-duty gear.
Specifications:
- Color: Red
- Distributor Type: Ready To Run
- Gear Material: Cast Iron Melonized QPQ Coated
- C.A.R.B. EO #: D-40-39
- Warranty: Manufacturer's Limited 1 Year Warranty
- Part Number: 8365
Designed to replace GM HEI distributors that use a 4-pin ignition module; supplied with MSD Digital HEI Module PN 83647 and HEI Coil PN 8225.
Compliance: This distributor carries California Air Resources Board (CARB) Executive Order EO# D-40-39, making it legal for sale and use on Emissions Controlled Vehicles in all 50 states when installed per MSD's application guide.
FAQ
What distributors does the MSD 8365 replace?
It's designed to replace GM HEI distributors that use a 4-pin ignition module.
Is the MSD 8365 CARB legal?
Yes, it carries CARB Executive Order EO# D-40-39.
What ignition module and coil come with the 8365?
It's supplied with MSD's Digital HEI Module, PN 83647, and HEI Coil, PN 8225.
How many timing curves can be dialed in with the 8365's advance assembly?
Three sets of springs and four stop bushings let you dial in up to 24 different timing curves, plus a vacuum advance for economy.
