Description
Part Number: 37004
FiTech LS3 Cast Aluminium Intake Manifold with 4150 Flange & Fuel Rails
Engineered specifically for GM LS3 rectangular-port cylinder heads, the FiTech 37004 intake manifold combines durable cast aluminium construction with a standard 4150 4-barrel flange—making it the ultimate base for FiTech EFI conversions, port injection upgrades, or custom performance builds.
Key Features
- ☑ Lightweight cast aluminium construction engineered for optimum heat dissipation and durability
- ☑ Precision port alignment matching GM LS3 / L92 rectangular-port cylinder heads
- ☑ Standard 4150 4-barrel square-bore mounting flange accepts carburetors or 4150-style EFI throttle bodies
- ☑ High-flow aluminium fuel rails included for seamless port fuel injection setup
- ☑ Optimized runner profiles design for maximum airflow and balanced cylinder distribution
Technical Specifications
| Brand | FiTech Fuel Injection |
|---|---|
| Manufacturer Part Number | 37004 |
| Engine Compatibility | GM LS Series (LS3 / L92 Rectangular Port) |
| Flange Style | 4150 4-Barrel Square Bore |
| Material | Cast Aluminium |
| Fuel Rails Included | Yes (High-Flow Aluminium) |
| Injection Style | Port Fuel Injection / Throttle Body EFI Base |
What’s Included in the Box
- 1 x FiTech Cast Aluminium LS3 Intake Manifold (PN 37004)
- 2 x High-Flow Aluminium Fuel Rails
- Fuel Rail Bracket Kit & Mounting Hardware
- Intake Manifold Mounting Hardware
JP Racing is an official UK stockist of genuine FiTech Fuel Injection systems and engine components. All orders are backed by expert motorsport technical assistance and fast dispatch directly across the UK.
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