12720-ZZ454YL

GM Crate Engine DUI Distributors

$339.00

  • Simple One Wire Hookup
  • Melonized Distributor Gear
  • 50,000 Volt High Output Coil
  • High Dwell Dyna-Module
  • Custom Tuned Mechanical Advance
  • No Add-On Spark Boxes Needed
  • One Year Warranty (Parts & Labor)
  • Over 40 Years of HEI Experience

Click Here to Download GM Street/Strip Instructions

Clear selection
SKU: N/A. Category: .

Product Description

Our Street/Strip Chevrolet DUI Distributor is now available for the popular GM high performance crate engines! This new DUI (Davis Unified Ignition) is designed for the ZZ4, ZZ383, ZZ454, ZZ502 and Fast Burn 385. A special timing curve and a melonized gear sets this distributor apart from our standard Street/Strip DUI. The advance weight and spring assembly is tuned to provide optimal performance for these crate engines. The optimized curve provides instant throttle response and maximum performance throughout the RPM range without any pre-detonation. The melonized gear is installed for proper meshing with the roller cam. Our 7000 RPM Street/Strip Coil and high dwell Dyna-Module are included for the hottest spark output available. No add-on spark box is necessary as our coil and module will fire a massive .055″ plug gap! The large gap provides a more complete burn of the fuel mixture for increased horsepower and torque. Vacuum advance is installed for improved fuel economy and cleaner spark plugs. The ZZ crate engine DUI is hand built to exact tolerances. Each unit is polished and lubed so that all mechanical parts perform super smooth. Every distributor is test fired to insure all parts are working properly before leaving our facility. If you are looking for a high performance ignition with the simplicity of a one wire hookup, then install our ZZ crate engine DUI and start Driving Under the Influence of more horsepower and more torque!

Please note that DUI Distributors are not ready for immediate shipping. The attention to quality and detail requires us to build each unit per order, and due to this process orders can take several days to complete before shipping out. During our busy season (March-September), build times can take slightly longer.

*Not Legal For Sale or Use on Any Pollution-Controlled Vehicle in California.

GM Crate Engine DUI Distributors have a one year warranty from date of purchase.

LiveWires For GM DUI

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, orange, purple, red, silver and yellow. Please visit our LiveWires page for more information.

Additional Information

GM Crate Engine DUI

Chevrolet Fast Burn 385 Crate Engine (385 CID), Chevrolet ZZ383 Crate Engine (383 CID), Chevrolet ZZ4 Crate Engine (350 CID), Chevrolet ZZ454 Crate Engine (454 CID), Chevrolet ZZ502 Crate Engine (502 CID)

Color Choice

Black, Blue, Clear, Red, Yellow