EP-440B Pro Billet Distributor for Chrysler Dodge Mopar 413 426 440 Big Block V8
The EP-440B is a CNC-machined 6061-T6 billet aluminum Pro Billet distributor for Chrysler Dodge Mopar RB big block V8 (413, 426 Wedge, 440 CID including 440 Six Pack). Small-diameter housing for tight head combinations. Fits 426 Wedge only — NOT 426 Hemi. Requires external ignition box (MSD 6/7/8) and external coil. Adjustable mechanical advance with lockout. Fits Charger, Road Runner, Super Bee, Challenger R/T, D-series trucks. ISO 9001:2015, CE-EMC, UL, UKCA certified.
EP Aftermarket Ignition Distributor
EP-440B — Pro Billet Distributor for Chrysler Dodge Mopar RB Big Block 413, 426, 440 V8
Pro Billet distributor · 6061-T6 CNC billet · Mopar RB 413 426 Wedge 440 · Ignition box required · Charger Road Runner race
Model
EP-440B
Type
Pro Billet
Engine
Mopar RB 413/426/440
Housing
6061-T6 CNC
Box
Required
Technical specifications
| Parameter | Detail |
| EP Model No. | EP-440B |
| Product type | Pro Billet Performance Distributor |
| Vehicle application | Chrysler, Dodge, Plymouth — RB big block V8 muscle cars and trucks |
| Engine | Chrysler RB big block 413 CID, 426 Wedge, 440 CID (incl. 440 Six Pack) |
| Note | Fits 426 Wedge only -- NOT 426 Hemi (Hemi requires separate distributor) |
| Housing | CNC-machined 6061-T6 billet aluminum, small-diameter design |
| Pickup | High-precision magnetic pickup |
| Advance | Fully adjustable mechanical advance with lockout capability |
| REQUIRES | External ignition box (MSD 6/7/8 or equiv.) · External coil |
| Certification | ISO 9001:2015 · CE-EMC · UL · UKCA |
| Brand | EP (Ever-Power) |
The EP-440B is a CNC-machined 6061-T6 billet aluminum Pro Billet distributor for Chrysler's legendary RB big block V8 family -- the 413, 426 Wedge, and 440 cubic inch engines that defined the pinnacle of Mopar muscle car performance. The 440 Six Pack with three Holley two-barrel carburetors and the 426 Wedge Cobra are among the most storied high-performance engines of the classic American muscle era, and serious builds on these platforms demand the precision of billet ignition hardware.
Small-diameter billet housing is a standard feature of the EP-440B, following the Chrysler 426/440 Pro-Billet convention established by MSD: the small diameter housing allows the distributor to fit tight block and head combinations that arise in serious 440 and 426 builds with large-port cylinder heads, Edelbrock or Indy big block heads, and B1-derived casting modifications. The tight clearances common in competition-level Mopar big block configurations make the small-diameter billet housing a practical necessity rather than just an aesthetic upgrade.
Important: the EP-440B fits the 426 Wedge engine but NOT the 426 Hemi. The Hemi uses an entirely different dual-point distributor design with unique geometry. For 426 Hemi applications, a Hemi-specific distributor is required. The EP-440B requires an external ignition box and external coil.

Key features
RB big block 413/426 Wedge/440 coverage
Covers the complete Chrysler RB big block family including 413, the 426 Wedge, and the legendary 440 Six Pack across all B-body and D-series truck applications.
Small-diameter for tight 440 head combinations
Small-diameter housing specifically clears large-port performance cylinder heads and B1-derived heads common in competition 440 and 426 Wedge builds.
426 Wedge only -- NOT 426 Hemi
The 426 Hemi uses a completely different distributor. The EP-440B fits 426 Wedge. Identify your engine by valve cover shape -- flat/rectangular is Wedge, humped/round is Hemi.
Lockout for 440 Six Pack race tuning
440 Six Pack builders using MSD ignition boxes lock out the mechanical advance and manage all timing at the box for precise three-carb race tuning.
Vehicle fitment
| Make | Model | Years | Engine |
| Dodge | Charger / Super Bee | 1962-1978 | 440 Six Pack / 426 Wedge V8 |
| Plymouth | Road Runner / GTX | 1968-1974 | 440 / 426 Wedge V8 |
| Dodge | Coronet | 1965-1971 | 426 Wedge / 440 V8 |
| Dodge | D-series Truck | 1966-1978 | 413 / 440 V8 |
| Dodge | Challenger R/T | 1970-1974 | 440 Six Pack V8 |

Application scenarios
440 Six Pack Charger and Road Runner race build
440 Six Pack Charger and Road Runner race builds with MSD ignition systems use the EP-440B for billet precision trigger accuracy with small-diameter housing clearance.
426 Wedge competition build
426 Wedge competition builds requiring the highest ignition trigger accuracy pair the EP-440B with MSD 7AL-2 or 8-Plus ignition controls.
Mopar big block wholesale supply
Performance shops stocking Mopar big block billet distributors carry the EP-440B as the Pro Billet option alongside the R2R EP-440M for their full customer range.
Installation guide
Confirm engine is 426 Wedge or 440 (not 426 Hemi). Disconnect battery. Lower EP-440B verifying small-diameter housing clears performance heads and valve covers. Connect magnetic pickup to ignition box per manufacturer wiring diagram. Connect box output to external coil. Set base timing. Configure advance at ignition box -- particularly important for 440 Six Pack applications where timing is critical to carburetor balance. Approximately 45-60 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 Pro Billet distributor is machined from 6061-T6 aerospace-grade billet aluminum under ISO 9001:2015 certified quality management. Each unit is individually tested for magnetic pickup signal accuracy, mechanical advance travel range, shaft concentricity, and housing dimensional compliance before shipment. CE-EMC electromagnetic compatibility certification, UL listing, and UKCA conformity mark cover all units across our major global export markets.

More EP HEI distributors
| Model | Application | Engine |
| EP-7 | Chevy SBC 262-400 / BBC 396-454 | Pro Billet Chevy V8 |
| EP-9-1 | Ford 351 Windsor | Pro Billet Ford 351W |
| EP-9 | Ford 351C / 429 / 460 | Pro Billet Ford BB |
| EP-289VWMG | Ford 289-302 Small Diameter | Pro Billet Ford SBF |
| EP-318B | Mopar LA 318 / 340 / 360 | Pro Billet Mopar SB |
| EP-4L | Chevy SBC/BBC Lockout Race | Pro Billet Race Lockout |
| EP-11 | Ford 289/302 Late EFI Roller Cam | Pro Billet Ford EFI |
| EP-3L | Holden V8 253 / 308 | Pro Billet Holden V8 |
About the manufacturer
EP (Ever-Power) — Automotive Ignition Specialist Since 1999
25+
Years in production
300+
Distributor models
80%
Export ratio
4
Certifications
HZPT is the international brand of Ningbo Xianlong Automobile Fittings Co., Ltd., established 1999. Our Pro Billet distributor range covers every major classic performance V8 platform -- Chevrolet SBC/BBC, Ford Windsor/Cleveland, Chrysler/Dodge Mopar small block and big block, and Holden 253/308 -- providing race-quality billet ignition hardware across the complete spectrum of classic American and Australian performance engines.

EP Pro Billet distributors require an external high-output ignition box (MSD 6, 7, or 8-series or equivalent) and an external ignition coil. This configuration gives the racer or performance builder full control over timing advance, rev limiting, and ignition output -- capabilities that self-contained HEI or Ready-to-Run units cannot provide. Wholesale buyers receive factory-direct pricing with no distributor markup on the EP Pro Billet range. EP is part of the Ever-Power Group, also producing worm reducers and a comprehensive range of mechanical transmission products.
Frequently asked questions
What is a Pro Billet distributor and how does it differ from HEI and Ready-to-Run?
What ignition box is compatible with the EP-440B?
Can the EP-440B be locked out for maximum timing control on a 440 Six Pack race engine?
Does this distributor fit Mopar Magnum engines (1992 and later)?
Can the mechanical advance be locked out for full-race applications?
How do I order the EP-440B for export or wholesale?
Ready to order EP HEI distributors?
300+ models · 65K coil · Brass terminals · Factory-direct pricing · Global export
Disclaimer: Chevrolet, Ford, Chrysler, Dodge, Plymouth, Holden, MSD, and other 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
| Editd by | LMC |
|---|
Product Quick Detail:
- Standard and non-standard available
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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
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
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






