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Speedway Motors Bill Smith

Performance Distributors S12000 DUI Brass Terminal HEI Cap & Rotor Kit


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Q & A

What's in the Box

Don't cheat your engine out of any firepower available! This kit offers up to 50% higher dielectric strength and can handle all the voltage available with 100% brass terminals for maximum conductivity.

  • Improved well design in the rotor eliminates burn-through
  • Made from THE ideal resin for HEI cap and rotor design
  • Nylon rotor screws eliminate a "ground" for the voltage to jump at high RPM

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Performance S127212-602-604 GM 602/604 Crate DUI Stealth Distributor

The 602/604 DUI is designed specifically for these crate engines with two features that set it apart from regular Racing DUIs. First, the mechanical advance is calibrated on a distributor machine with an aggressive and accurate timing curve designed to meet the requirements of these crate motors. This special racing curve will ensure maximum performance and get your car out of the corners faster. Second, a melonized
gear is installed on the distributor (instead of the stock cast gear) which is compatible with factory roller cams. 

  • Capable of turning 9000 RPM
  • No external spark boxes or coils are needed
  • Easy drop-in installation with a one wire hookup
  • Sends 2-3 times more spark into the combustion chamber than a magneto
  • Allows spark plug gaps to be opened up to .055"
  • Only pulls 2-3 amps (other systems draw 10+ amps)
  • Key distributor parts are polished and lubed for smooth operation

Available in "Stealth" version with no decals and a black cap for a bone stock appearance.

Performance Distributors S127212 Stealth Race Chevy HEI Distributor

The Stock Appearing "Stealth" version is available for those who want a totally OEM looking distributor. The Stealth version has all of the same features of the regular Racing D.U.I. except  that it is built with a black distributor cap, unpolished housing and no decals for that "bone stock"
HEI look. Has 100% new components.

  • Fits SB & BB Chevrolet
  • Capable of turning 9000 RPM
  • No external spark boxes or coils are needed
  • Easy drop-in installation with a one wire hookup
  • Sends 2-3 times more spark into the combustion chamber than a magneto
Performance Distributors S000222 DUI 4-Pin HEI Dyna-Module

For a crisper, smoother running engine, replace your stock HEI module with the Dyna-Mod. The Dyna-Mod has more "electronic dwell" in it to provide more coil saturation time. The additional saturation time allows the coil to produce a more intense spark. All D.U.I. distributors are built with this module.

Fits 1974-Up (w/o computer) GM HEI distributors.

Performance Distributors S121000 DUI Racing Coil Kit
  • For high revving race engines that spin more than 7000 RPM 
  • Fits on ALL GM V8, 6 cylinder and 4 cylinder distributors with the internal HEI coil
  • Capable of 10,000 RPM - almost twice the output of a stock HEI coil
  • Allows spark plug gaps to be opened up to .055"
  • Wider plug gaps will allow more spark energy into the combustion chamber
  • Includes brass terminal cap, and rotor.
Performance Distributors 111111 Battery and Tachometer Connector

These plastic insulators and brass terminals make your power supply connection and tach connection to the DUI Distributor super easy! They plug directly into the cap and coil assembly and the locking tabs prevent lost connections due to vibration. The Battery and Tachometer Connectors are priced separately so one of each will be needed for the hot wire and tach hookup.

Performance Distributors 444444 DUI Nylon Rotor Screws
                        Eliminates a ground for voltage to jump to at high RPM's for D.U.I. only.
Accel 170072 HEI Wiring Pigtail

Finally, a dual HEI connector for GM HEI “Coil In-Cap”. The Dual HEI Connector helps clean up your engine bay by eliminating the use of single spade connectors to make battery and tachometer connections. Also holds the 12 volt and tachometer wires securely in place. Made from hi-temperature durable plastic to withstand all extreme conditions of an engine bay. The easily seen, 10” long, red and green wires identify battery and tachometer.

  • Wire your HEI distributor like the factory
  • Red and green wires identify battery and tach leads
  • 10" long