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NOS Dry BigShot 4-Barrel Professional Kit

Dry Bigshot Nitrous Kit For 4150 Type Throttle Body

PART# 02155NOS

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$807.00   Suggested Retail
$725.95   Your Price
Estimated shipping date: 12/11/2020
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The NOS Dry BigShot kit is specifically designed to be used with an EFI system, such as the Holley HP or Dominator that can add the required fuel and adjust spark advance for a "Dry" type of nitrous system. The kit includes a billet 1/2" thick nitrous plate that mounts between a 4150 style flange throttle body and the intake manifold. A single stainless steel, 34-hole spray bar delivers nitrous to the engine. The kit also includes an NOS 18048RNOS Pro-Race Solenoid and jetting for power levels of 190, 225, 275, and 300 hp.


  • Specifically designed for use with EFI Systems
  • 1/2" NOS Blue Anodized Plate
  • 4150 Style Mounting Flange
  • Included 18048NOS Pro Race Solenoid
  • 10 lb. NOS Electric Blue Bottle
  • Bottle Brackets
  • 14ft 6AN Supply line
  • Jets for 190, 225, 275, and 300 HP
  • Single, 34 hole, Stainless Spray Bar


Emission Code4
Material6061 T-6 Aluminum
Max Horsepower300
Plate Flange4150
Product TypeNOS Kit
Part Number02155NOS



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

This kit is a "Dry" kit, meaning no additional fuel is added through the nitrous kit, as in a traditional nitrous/fuel system. This kit requires an EFI system that has the ability to add fuel when the system is activated.
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