EP-83606 HEI Distributor for Chevrolet Big Block Small Block V8 (Replaces 1103606)

EP-83606 HEI Distributor for Chevrolet Big Block Small Block V8 (Replaces 1103606)

The EP-83606 is a complete HEI ignition distributor for Chevrolet small block (262-400 CID) and big block (396-454 CID) V8 applications identified by OEM reference 1103606/1103607. Red cap with brass terminals, 65,000-volt coil, adjustable vacuum advance. Parts buyers sourcing by OEM number will find the EP-83606 as the OEM-accurate replacement for the 1103606 distributor variant. Ships complete with cap, rotor, electronic module, and vacuum advance. Verify OEM 1103606 on existing distributor. For general SBC/BBC service see EP-10C. Replaces OEM 1103606. ISO 9001:2015, CE-EMC, UL, UKCA certified.

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EP Aftermarket Ignition Distributor

EP-83606 — HEI Distributor for Chevy SBC and BBC V8 — Variant Specification

HEI distributor · Red cap · Chevy SBC BBC V8 · 65,000V coil · OEM 1103606 replacement · Complete

ISO 9001:2015CE-EMCUKCAGlobal Export

Model

EP-83606

Type

HEI

Engine

SBC/BBC V8

Cap Color

Red

OEM

1103606

Technical specifications

ParameterDetail
EP Model No.EP-83606
Product typeHEI Ignition Distributor — Complete Assembly
Vehicle applicationChevrolet SBC and BBC V8 (OEM 1103606 variant)
EngineChevrolet SBC / BBC V8
Replaces OEM1103606 / 1103607
IncludesDistributor Body, 65K Coil, Red Cap (brass terminals), Rotor, Module, Adjustable Vacuum Advance
CertificationISO 9001:2015 · CE-EMC · UL · UKCA
BrandEP (Ever-Power)

The EP-83606 is an HEI distributor for Chevrolet small block and big block V8 applications identified by OEM reference 1103606. This variant within the Chevrolet HEI family covers specific application configurations that differ from the general-market EP-10C. Parts buyers sourcing by OEM number will find the EP-83606 as the accurate replacement for 1103606-specification vehicles.

Like all EP HEI distributors, the EP-83606 provides a complete self-contained ignition system with 65,000-volt coil, brass-terminal red cap, and adjustable vacuum advance canister. The red cap matches the performance-oriented appearance of the SBC/BBC hot rod and street rod community.

Manufactured under ISO 9001:2015 quality management.

EP high-precision ignition distributor production equipment

Key features

OEM 1103606 specific variant

Correct replacement for Chevrolet HEI distributors identified by OEM 1103606.

65K coil upgrade

65,000-volt coil significantly exceeds the original specification of the 1103606 application.

Red cap performance styling

Red cap for SBC/BBC performance and street rod applications.

SBC and BBC coverage

Same universal small block and big block coverage as the general-range EP-10C.

Vehicle fitment

MakeModelYearsEngine
ChevroletSBC / BBC V8 applications (OEM 1103606)VariousSBC 262-400 / BBC 396-454

EP HEI distributor full series compatibility overview

Application scenarios

OEM-number parts sourcing

Wholesale buyers requiring OEM-accurate product numbers stock EP-83606 for 1103606-specific customer requests.

GM V8 performance service

Performance shops that track distributor variants stock EP-83606 alongside the general EP-10C for OEM accuracy.

Street rod supplier accuracy

Street rod suppliers needing to match OEM numbers for catalog accuracy use EP-83606 for 1103606 applications.

Installation guide

Standard HEI installation. Verify OEM 1103606 on existing distributor, disconnect battery, mark positions, install EP-83606, connect BAT wire and vacuum advance, set timing. Approximately 30-45 minutes.

Need pricing or technical assistance?

We respond within 24 hours · MOQ as low as 1 unit · OEM/private-label available

Quality assurance

Every EP HEI distributor is manufactured under ISO 9001:2015 certified quality management. Each unit is individually tested for ignition coil output voltage, electronic module switching function, vacuum advance response, and shaft seal integrity before shipment. CE-EMC electromagnetic compatibility certification, UL listing, and UKCA conformity mark ensure full compliance across all major global export markets.

EP ISO 9001 CE EMC UL UKCA certifications

More EP HEI distributors

ModelApplicationEngine
EP-10AJeep AMC V8 290-401AMC V8 290-401
EP-10CChevy SBC 262-400 / BBC 396-454SBC/BBC V8 Red
EP-10Chevy SBC 262-400 / BBC 396-454SBC/BBC V8 Blue
EP-10BKChevy SBC 262-400 / BBC 396-454SBC/BBC V8 Black
EP-10-V6Chevy/Buick/Olds/Pont V6GM V6 229/262
EP-10TBChevy Corvette Tach DriveSBC/BBC Tach
EP-302HEA-1Ford 289-302 5.0 V8Ford SBF Blue
EP-302HEA-2Ford 351 Windsor V8Ford 351W Blue

About the manufacturer

EP (Ever-Power) — Automotive Ignition Specialist Since 1999

25+

Years in production

300+

Distributor models

80%

Export ratio

4

Certifications

Founded in 1999 in Ningbo, Zhejiang Province, HZPT operates automated and semi-automated production lines for ignition distributors, oil pump motors, and automotive electrical components. Our facility has received ISO9001:2015, CE-EMC, UL, and UKCA certifications, and our products are supplied to OEM customers in China and exported to the international aftermarket.

EP ignition distributor production line

Our HEI distributor range now covers 29 models across American V8, V6, and Flathead applications. Wholesale buyers, Amazon sellers, and aftermarket distributors source directly from our factory, eliminating the middleman markup that inflates the price of name-brand HEI distributors. EP is part of the Ever-Power Group, also producing agricultural gearboxes and a comprehensive range of mechanical transmission products.

Frequently asked questions

What are the symptoms of a failing HEI distributor?
Common symptoms include hard starting, engine misfires at high RPM, rough idle, loss of power under load, and occasional stalling. A failing HEI module (the most common failure component) typically causes complete spark loss when hot — the engine starts fine when cold, stalls after reaching operating temperature, and may restart after a cool-down period. A worn HEI cap with carbon tracking between towers causes crossfire and cylinder-specific misfires that worsen as the cap deteriorates.
Does the EP-83606 come with a cap, rotor, and coil?
Yes. The EP-83606 ships as a complete ready-to-run assembly including the distributor housing, 65,000-volt high-output ignition coil, distributor cap with brass terminals, rotor, ignition module, adjustable vacuum advance canister, and hold-down hardware. No additional ignition components are required for installation.
Is the EP-83606 interchangeable with the EP-10C for a general Chevy V8 application?
For most practical applications, yes — both units cover the SBC and BBC V8 family with the same HEI specification. The EP-83606 specifically replaces the 1103606 variant while the EP-10C covers the broader market. If your existing distributor shows OEM 1103606, the EP-83606 is the technically accurate replacement. For general SBC/BBC service where the exact OEM variant is unknown, the EP-10C serves the broadest range.
Is the EP HEI distributor compatible with aftermarket ignition boxes such as MSD?
EP HEI distributors with a magnetic pickup (Ready-to-Run style) are compatible with external ignition boxes including MSD 6-series, 7-series, and 8-series units, as well as equivalent ignition boxes from Mallory, Crane, and Holley. Standard HEI distributors with an internal module operate as standalone units and do not require an external ignition box, though they can be paired with one for additional timing control. Consult the ignition box manufacturer's instructions for the correct connection procedure.
How do I order the EP-83606 for export or wholesale?
EP supports single-unit orders for market sampling, carton quantities for repair shops, and container-volume wholesale orders. Standard production lead time is 15-30 days. OEM branding, private-label packaging, and custom color selection are available for qualifying volumes. Contact our team via the inquiry form or WhatsApp for pricing and availability.

Ready to order EP HEI distributors?

300+ models · 65K coil · Brass terminals · Factory-direct pricing · Global export

Disclaimer: Chevrolet, Ford, Pontiac, Oldsmobile, Buick, Cadillac, Chrysler, Dodge, Plymouth, Jeep, AMC, Holden, Volkswagen, and other vehicle brand names and OEM part numbers are used for product compatibility reference only. EP (Ever-Power) products are high-quality aftermarket replacement parts and are not affiliated with original vehicle or component manufacturers. All trademarks remain the property of their respective owners.

LMC

Additional information

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LMC

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Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages

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