Description
FiTech LS1 Cast Intake Manifold with 4150 Flange & Fuel Rails
High-performance cast aluminium intake manifold engineered for cathedral-port LS1 applications, paired with custom high-flow fuel rails and a versatile 4150 square-bore flange.
Overview & Motorsport Performance
Engineered for high-horsepower GM LS conversions and retrofits, the FiTech 37007 Cast Intake Manifold delivers optimum airflow distribution and structural durability. Designed specifically for cathedral-port LS1, LS2, and LS6 cylinder heads, this intake features a standard 4150 square-bore mounting flange. This allows seamless integration with FiTech 4-barrel EFI throttle bodies, carburetors, or aftermarket 4150-style induction systems.
Constructed from rugged cast aluminium, the manifold handles high intake pressures and extreme engine bay heat without flexing or fatigue. Included with the kit are high-flow fuel rails designed for top-feed injectors, providing steady, uninterrupted fuel delivery for street, strip, or track applications.
Key Features
- ☑ Precise cathedral-port matching for LS1, LS2, and LS6 cylinder heads
- ☑ Standard 4150 square-bore flange accepts 4-barrel EFI throttle bodies or carburetors
- ☑ High-flow aluminium fuel rails included for optimum fuel distribution
- ☑ Durable cast aluminium construction withstands thermal cycling and vibration
- ☑ Balanced runner velocity for maximized performance across all cylinders
Technical Specifications
| Brand | FiTech Fuel Injection | |||
|---|---|---|---|---|
Additional information
Frequently Asked Questions
The FiTech 37007 intake manifold is designed specifically for GM LS engines equipped with cathedral-port cylinder heads, including standard LS1, LS2, and LS6 heads. It is not compatible with rectangular port LS3/L92 heads or raised port LS7 heads.
This manifold features a standard 4150 square-bore flange pattern. It is directly compatible with FiTech Retro LS or Go EFI 4150 throttle bodies, 4150-style carburetors, or any standard square-bore 4-barrel induction setup.
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