Description
The FiTech LS3 Cast Intake Manifold w/ 4150 Flange and Fuel Rails (37004) is a key component for those looking to convert their LS engine to electronic fuel injection (EFI). This product features an LS3 cast intake manifold designed with a 4150 flange and includes the necessary fuel rails. It’s built to facilitate a smoother transition to EFI, allowing for improved engine performance and fuel efficiency.
KEY FEATURES AND BENEFITS:
- Direct Upgrade Solution: Ideal for LS engine owners seeking to transition to EFI.
- Optimal Airflow Design: The LS3 cast intake manifold is engineered for enhanced airflow.
- Versatile Flange: The 4150 flange allows for the use of various throttle bodies.
- Complete Fuel Delivery System: Included fuel rails ensure efficient fuel delivery.
- Simplified Conversion Process: Provides essential components in one package for easy installation.
SPECIFICATIONS:
- Product: FiTech 37004 LS3 Cast Intake with 4150 Flange and Fuel Rails
- Engine Compatibility: LS3 Engines
- Flange Type: 4150
- Included: LS3 Cast Intake Manifold, Fuel Rails
- Weight: 36 lbs
- Dimensions: 19 × 18 × 28 in
HOW TO USE:
- Preparation: Ensure the LS engine is prepared for intake manifold removal. Disconnect the existing fuel and air systems.
- Removal: Remove the existing intake manifold from the LS engine, following the vehicle’s service manual.
- Installation: Position the FiTech 37004 intake manifold onto the LS3 cylinder heads, ensuring proper alignment.
- Secure: Secure the intake manifold using the appropriate bolts and torque specifications.
- Fuel Rail Installation: Install the provided fuel rails onto the intake manifold.
- Throttle Body: Mount a 4150-style throttle body onto the flange.
- Connection: Connect the fuel lines and any necessary sensors to the fuel rails and throttle body.
- Testing: Perform a thorough test to ensure proper sealing and fuel delivery.
BENEFITS OF USING THE FITEC LS3 CAST INTAKE MANIFOLD W/ 4150 FLANGE AND FUEL RAILS (37004):
- Simplifies EFI Conversion: Provides a complete intake solution, reducing the need for sourcing individual components.
- Flexibility in Throttle Body Selection: The 4150 flange offers versatility for various throttle body options.
- Improved Engine Performance: Designed to enhance overall performance and fuel efficiency.
- Time-Saving Installation: The all-in-one design saves time and potential headaches during the conversion process.
FEATURES:
- Cast Aluminum Construction: Durable and lightweight for long-lasting use.
- Designed for LS3 Style Cylinder Heads: Ensures compatibility and optimal fit.
- 4150 Style Flange: Adaptable for various throttle body configurations.
- Included Fuel Rails: For complete integration into the fuel system.
- EFI Conversion Assistance: Specifically engineered to support the EFI transition.
- Improved Airflow: Enhances engine performance through efficient airflow design.
- Physical Dimensions Planning: Allows for accurate planning during installation and storage.
- Weight Considerations: The product weight aids in proper installation planning.






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