Big Shot Injection Plate with Jets and Fittings - Holley 4150 Square Flange, V8

Brand NOS Reference 12510NOS

Big Shot Injector Plate, w/Jets & Plumbing, Holley Square Bore, V8 - Assure a steady, precise metered flow of nitrous and fuel for reliability. Backed with years of laboratory research, as well as dyno and drag strip testing.

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Available from the manufacturer 4 in stock at factory
Expected delivery to you on Nov 13, 2026
This lead time is an estimate and may change due to circumstances beyond our control

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Big Shot Injector Plate, w/Jets & Plumbing, Holley Square Bore, V8 - Assure a steady, precise metered flow of nitrous and fuel for reliability. Backed with years of laboratory research, as well as dyno and drag strip testing. NOS Injector Plates are available for those who want to build their own system or upgrade their current nitrous system without having to go through the expense of a new complete system. Unless specified, NOS Injector plates incorporate a low profile (1/2" thic PI) design and are constructed of solid billet or die cast aluminum with a durable black finish. Included are all applicable gaskets, studs, jets and plumbing.

Key features

  • Precise Metered Nitrous Flow
  • Low Profile Design (1/2" Thic PI)
  • Solid Billet/Die Cast Aluminum
  • Durable Black Finish
  • Includes Applicable Gaskets
  • Includes Studs/Jets/Plumbing

Technical specifications

  • Brand: NOS (Nitrous Oxide System PI)
  • Manufacturer part number: 12510NOS
  • Jet type: Flare
  • System type: Wet
  • Maximum power: 300 HP
  • Jetting included for: 190, 225, 275, 300 HP
  • Plate flange / bolt pattern: 4150

Important: this product runs on nitrous oxide (N2 PI), a gas we do not supply and which is currently difficult to obtain. It is your responsibility to find a local supplier of gas for professionals. NOS bottles do not comply with CE standards (they do not carry the PI mark): only CE-approved bottles may be used. European manufacturers offer bottles approved to contain this gas; please check the applicable standards and verify the manufacturer's origin and compliance before purchasing. NOS fittings are not metric (AN / NPT threads depending on the part numbe PI): plan for the adapters needed for your installation. Please comply with the regulations in force in your country.

Product family: Engine
Engine Plaques d’injection nitro
Produit mis à jour le: 2026-10-23 15:37:20