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NOS Showerhead Distribution Block

Inlet: -8 AN O-Ring Female Port, Outlet: (4) x -6 AN O-Ring Female Port, No Fittings, Black Anodized

PART# 16756NOS

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Quality distribution blocks are a necessity for today's multi-stage, high powered Nitrous systems. The engineers at NOS have taken the tried and true showerhead design and turned it into a low profile, user friendly design. The parallel inlet/outlet design allows for a much more compact installation of the Nitrous solenoid feed lines. The internal passages are profiled to maximize flow and minimize pressure drop across the distribution block. For the best flowing, most compact showerhead distribution blocks, look for the NOS logo.


  • 6061 Aluminum Construction for Light Weight, Strength and Durability
  • Inlet: -8 AN O-Ring Female Port
  • Outlets: (4) x -6 AN O-Ring Female Ports
  • Parallel Inlet/Outlet Design for a Compact Assembly
  • Profiled Internal Passages for Maximum Flow & Minimal Pressure Drop
  • Finish: Black Anodized
  • Can Be Used w/ Nitrous, Gasoline, Alcohol, or Other Fuels


Adapter AN Size ( A )3/4-16 (AN 8)
Adapter AN Size ( B )9/16-18 (AN 6)
Adapter TypeDistribution Block
Emission Code4
FinishAnodized Black
Inlet Thread3/4-16 (AN 8)
Material6061 Aluminim
Outlet180 Degree
Outlet Thread9/16-18 (AN 6)
Product TypeDistribution Block
Part Number16756NOS



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

For use w/ Multi-Stage Direct Port Nitrous or Fuel Applications
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