Product Summary

Chevy Small Block V8, Chevy Big Block V8, Natural

  • The Chevrolet HEI Distributor is a favorite for muscle cars, street rods and even circle track racers
  • Integrated coil keeps underhood wiring clean, and running one wire to the distributor keeps things simple
  • Digital module and high output coil for plenty of spark energy combined with improved dwell and timing control
  • Includes (8) pre-made spark plug cables (both ends 90 deg.)
  • Distributor is designed to replace GM HEI distributors that use a 4-pin ignition module

Comes as a Kit

Key Specs

Cap TypeHEI / Male
Advance TypeMechanical and Vacuum

Need To Know

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Shipping Policies & FAQs

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Return Policy


Breathe new life into your Small Block Chevy or Big Block Chevy engine with this easy-to-install distributor ignition kit!

Kit Includes:

  • (1) MSD 8365 Pro-Billet Chevy HEI Distributor
  • (1) Moroso Ready to Install Plug Wire Set-HEI/Under Header/Red
  • (1) Chevy Distributor Clamp
  • (1) GM HEI Distributor Wiring Pigtail Connector, 10 Inch


MSD 8365 Pro-Billet Chevy HEI Distributor

  • Easy-to-adjust mechanical advance with supplied springs and stop bushings
  • Vacuum advance canister for improved economy (can be locked out)
  • CNC machined billet aluminum housing and billet aluminum base
  • Polished steel shaft is QPQ coated and guided by a sealed ball bearing
  • Advance plate and weights are fine blanked from chromoly steel and QPQ coated for friction reduction
  • Mechanical advance assembly can easily be locked out
  • Advance weight pins are staked and tig welded to the plate
  • Nylon pads ensure smooth operation of the advance weights
  • Special oil tract improves lubrication to the distributor and cam gear
  • Supplied with a 7.5 amp, single spark, inductive discharge ignition module
  • Epoxy filled 42,000 Volt coil with .31 OHMs resistance
  • Full spark energy output to 9,000 RPM
  • Supplied with brass terminal distributor cap and rotor
  • Iron distributor gear
  • Includes three sets of springs and four stop bushings
  • Dial in up to 24 different timing curves to match your driving needs


Moroso Ready to Install Plug Wire Set

  • Save time and energy with these pre-assembled Moroso 8mm spiral core wires
  • Fiberglass reinforced with a silicone outer layer
  • 90° boots on both ends
  • Available in Red


Chevy Distributor Clamp

  • Extra heavy duty distributor clamp
  • Gives more hold-down area for your Small Block Chevy (SBC) or Big Block Chevy (BBC)


GM HEI Distributor Wiring Pigtail Connector

  • Features a dual HEI connector that helps clean up your engine bay by eliminating the use of single spade connectors to make battery and tachometer connections
  • 10 inch length
  • Red and green wires to identify battery and tach leads



  • 265-400 S/B Chevy
  • 396-454 B/B Chevy
  • Designed to replace GM HEI distributors that use a 4-Pin ignition module




Spark Plug Wires:

  • Spiral Core conductor style
  • 90 Degree boot ends
  • 8mm diameter wires

Plug Wire Lengths Included:

  • 37-7/8" x 1
  • 37"       x 2
  • 35-1/2" x 1
  • 33"       x 1
  • 29-5/5" x 1
  • 27-3/4" x 2



For warranty information, please visit



Cap TypeHEI / Male
Advance TypeMechanical and Vacuum
External Ignition Box RequiredNo
Cap Terminal StyleHEI / Male
Trigger StyleMagnetic
Hall EffectNo
Sync SignalNo
Trigger SensorsSingle
Gear MaterialIron
Gear RotationStandard
Ignition Box RequiredNo
Mechanical Tach DriveNo
Slip CollarNo
Housing MaterialBillet Aluminum
Housing FinishNatural
Rotor RotationClockwise
EmissionsCalifornia EO Approved
Marine UseNo
Sold in QuantityKit