Add some serious firepower to your Dodge Big Block by installing our DUI Distributor! The all in
one DUI (Davis Unified Ignition) has everything you need for the ignition system in one simple unit.
No external coils, modules or spark boxes are needed! Just one 12 volt hot wire connected to the
DUI will send 50,000 volts of pure spark energy to the plugs and fire the cylinders like never before.
Increased horsepower, torque and fuel mileage along with quicker starting and smoother idle are
the benefits of installing the DUI. These gains are made by the high performance coil and module
and custom tuning of the advance weights and springs . The high voltage coil allows spark plug
gaps to be opened up to a massive .055". The dwell in our Dyna-Module has been increased
electronically to allow the coil to produce a longer duration spark. The combination of the large
gap and longer spark provide the most complete combustion of the fuel mixture possible. A
special weight and spring assembly is hand fitted and dialed-in using a distributor machine for
a precise timing curve that will match the specifications of your engine and vehicle. The super
smooth advance provides instant throttle response and maximum power throughout the rpm
range with no pre-detonation. The optional ITK (Instant Timing Knob) will allow you to make fine
tuning adjustments without repositioning the distributor. A simple twist of the knob will let you
advance or retard the timing as much as 6° depending on the engines needs. For street/strip
applications, use the ITK to add timing at the track when using race gas. For towing, use the ITK
to retard timing when pulling heavy loads. The ITK option replaces the vacuum advance canister.
Vacuum advance is an available option on the Street/Strip version but due to space limitations
may need to be eliminated for clearance. The Dodge Big Block DUI is based on the HEI (High
Energy Ignition) system and although it is uniquely designed, replacement parts can be found at
any local auto parts store. Installation for the hot wire and tachometer are made simple with the
included connectors. The DUI Distributor is precision built and unsurpassed in quality. It is the
original one-piece ignition system for Dodge Big Blocks!

DIMENSIONS: The DUI measures 14" from the hold down clamp to the top of the cap. The
diameter of the distributor cap is 5 1/4". This unit will not clear Mopar Performance valve covers
without modification to the covers. Due to the height of the distributor, the big block DUI will not
fit a 62 Plymouth, 67 GTX, 68 Coronet or 69 Charger. If you have one of these vehicles, please
consider our Dodge Tri-Power Ignition System. The Street/Strip version has a one year warranty.
Racing version has a 30 day warranty.

CLICK HERE TO VIEW LARGER VERSION OF PART NUMBER 70830

CLICK HERE TO VIEW LARGER VERSION OF PART NUMBER ITK708312

 

Part # Application - Big Block Dodge DUI Only Price
  70830   Dodge Big Block DUI (383-400) - Street/Strip Version   $395.00  
  ITK70830   Dodge BB DUI w/ Instant Timing Knob (383-400) - Street/Strip Version   $475.00  
  708312   Dodge Big Block DUI (383-400) - Racing Version   $485.00  
  ITK708312   Dodge BB DUI w/ Instant Timing Knob (383-400) - Racing Version   $565.00  
  70930   Dodge Big Block DUI (426-440) - Street/Strip Version   $395.00  
  ITK70930   Dodge BB DUI w/ Instant Timing Knob (426-440) - Street/Strip Version                       $475.00  
  709312   Dodge Big Block DUI (426-440) - Racing Version   $485.00  
  ITK709312   Dodge BB DUI w/ Instant Timing Knob (426-440) - Racing Version   $565.00  

 

 

 

 

 

 



Part # SPECIAL - DUI and LiveWires Kit Price Sale Price
 K-70830   S/S Big Block DUI (383-400) and LiveWires (C9065)  $510.00   $459.00 
 K-ITK70830   S/S BB DUI w/ Instant Timing Knob (383-400) and LiveWires (C9065)  $590.00   $531.00 
 K-708312   Race Big Block DUI (383-400) and LiveWires (C9065)  $600.00   $540.00 
 K-ITK708312   Race BB DUI w/ Instant Timing Knob (383-400) and LiveWires (C9065)  $680.00   $612.00 
 K-70930   S/S Big Block DUI (426-440) and LiveWires (C9065)  $510.00   $459.00 
 K-ITK70930   S/S BB DUI w/ Instant Timing Knob (426-440) and LiveWires (C9065)  $590.00   $531.00 
 K-709312   Race Big Block DUI (426-440) and LiveWires (C9065)  $600.00   $540.00 
 K-ITK709312   Race BB DUI w/ Instant Timing Knob (426-440) and LiveWires (C9065)  $680.00   $612.00 

 

 

 

 

 

 

 

                                                                           CLICK HERE TO ORDER

LIVEWIRES

Delivering a high voltage spark to the plug requires a quality spark plug wire.
Our LiveWires are unsurpassed in quality by offering low resistance and high
temperature protection. The 8 mm wire is covered by a heat treated fiberglass
sleeve that protects the wire up to 1400° F. The spiral wound core is radio
suppression so there is no radio noise or computer interference. Unlike universal
plug wire sets, LiveWires do not require any assembly. All sets are custom fit and
numbered at each end for the correct cylinder. Colors available are black, blue,
red, purple and yellow.
Recommended Part Number:
C9065 - (Dodge/Chrysler 383 - 400 - 440) $115.00
CLICK HERE FOR THE LIVEWIRES PAGE

 

 

 

DYNA-MODULE w/ BUILT-IN REV LIMITER

Our high dwell Dyna-Module is now available with a built-in adjustable Rev Limiter! This
module performs the same as our regular Dyna-Mod by increasing spark duration but
offers the added convenience of protecting your engine from over revving. The rev limit
is adjustable through a small rotary dial on the end of the module from 5000 to 10,000 rpm.
The module also includes Traction Control Detection which immediately slows the vehicle
when a sudden change in ignition signals is detected. Works with all of our DUI and HEI
type distributors that utilize the 4 pin module.
Part# RL-000222 (Module w/ Rev Limiter) CURRENTLY OUT OF STOCK
Substitute the Rev Limiter Module for the standard 4 pin module on any DUI by adding $76.00 to the distributor
price and the letters RL in front of the part number.

 

 

 

DUI REV LIMITER

Protect your engine from over revving with the DUI Rev Limiter. The D.U.I. Rev Limiter
drops one cylinder at a time very smoothly. This prevents fuel from loading up on the
plugs. This also avoids backfires and engine damage. Set your RPM limit with plug-in
modules. A 6000, 7000 and 8000 RPM module is included with the rev limiter. Other
RPM increment modules are available separately if needed. This unit works great with
all of our DUI distributors.
Part# 380777 $145.00

Rev Limiter Module Kits - Even Increments
Part# 380-5000, (5000 Series) 5000, 5200, 5400, 5600 & 5800 $39.00
Part# 380-6000, (6000 Series) 6000, 6200, 6400, 6600 & 6800 $39.00
Part# 380-7000, (7000 Series) 7000, 7200, 7400, 7600 & 7800 $39.00
Part# 380-8000, (8000 Series) 8000, 8200, 8400, 8600 & 8800 $39.00

 

CLICK HERE TO ORDER

 

HOME PAGE | ORDER PAGE | CONTACT US | FAQS