FiTech 37004 LS3 Cast Intake with 4150 Flange and Fuel Rails
FiTech 37004 LS3 Cast Intake with 4150 Flange and Fuel Rails
FiTech

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#52137004

FiTech 37004 LS3 Cast Intake with 4150 Flange and Fuel Rails

  • LS3-Specific Design - Precision-matched for LS3 cylinder heads, ensuring optimal port alignment and performance
  • 4150 Flange Compatibility - Accepts standard 4150 throttle bodies for straightforward FiTech EFI upgrades or carb-to-EFI swaps
  • Cast Aluminum Construction - Lightweight yet strong material for reliable long-term use and heat dissipation
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$500.00

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Product Summary

Individual Runner Intake Manifold Type, Aluminum

  • LS3-Specific Design - Precision-matched for LS3 cylinder heads, ensuring optimal port alignment and performance
  • 4150 Flange Compatibility - Accepts standard 4150 throttle bodies for straightforward FiTech EFI upgrades or carb-to-EFI swaps
  • Cast Aluminum Construction - Lightweight yet strong material for reliable long-term use and heat dissipation
  • Integrated Fuel Rails - Includes high-quality aluminum rails with stainless steel crossover hose and fittings for clean, efficient fuel delivery
  • Complete Kit - Comes with all required gaskets and hardware for hassle-free bolt-on installation on compatible LS engines
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Key Specs

MFG. Part #37004
BrandFiTech
Intake Manifold TypeIndividual Runner
Material TypeAluminum
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FiTech 37004 Details

FiTech Fuel Injection's 37004 is a high-quality cast aluminum intake manifold designed specifically for LS3-style cylinder heads. It features a standard 4150 (4-barrel) carb-style flange, making it an ideal base for FiTech throttle body EFI conversions, port injection setups, or custom builds. Complete with integrated aluminum fuel rails and necessary gaskets, this manifold delivers excellent airflow, durability, and easy installation for boosted or naturally aspirated LS engines.

Key Features

  • LS3-Specific Design - Precision-matched for LS3 cylinder heads, ensuring optimal port alignment and performance
  • 4150 Flange Compatibility - Accepts standard 4150 throttle bodies for straightforward FiTech EFI upgrades or carb-to-EFI swaps
  • Cast Aluminum Construction - Lightweight yet strong material for reliable long-term use and heat dissipation
  • Integrated Fuel Rails - Includes high-quality aluminum rails with stainless steel crossover hose and fittings for clean, efficient fuel delivery
  • Complete Kit - Comes with all required gaskets and hardware for hassle-free bolt-on installation on compatible LS engines

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
CA Prop 65
CARB warning

FiTech 37004 Specifications

KEY SPECS
MFG. Part #37004
BrandFiTech
Intake Manifold TypeIndividual Runner
Material TypeAluminum
GENERAL
Carburetor QuantityOne
FinishNatural
Throttle Body IncludedNo
Injectors IncludedNo
Fuel Rails IncludedYes
Hardware IncludedYes
Sold in QuantityKit
GTIN Code812061038416
Intake FinishNatural

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