LS1/LS2/LS6 Crosswind 4150 Flange Intake Manifold; Polished (98-02 5.7L Firebird)Find parts that fit my vehicle

Enhance the performance of your Chevrolet LS-based (small block Gen III/IV) engine with this premium intake manifold designed for LS1, LS2, and LS6 cylinder heads. Featuring a dual plane Crosswind style, this manifold optimizes power delivery in the 1,500 to 6,500 RPM range, making it ideal for applications requiring strong low- to mid-range torque and throttle response. Constructed from high-quality aluminum, this intake manifold is available in polished, satin, or black powder coat finishes, allowing you to choose the look that best compliments your engine bay. The manifold stands 6.140 inches tall and is engineered for seamless fitment on Chevrolet V8 engines ranging from 4.8L to 6.0L across model years 1997 through 2017. Its dual plane design improves air distribution and volumetric efficiency for LS1, LS2, and LS6 engines, supporting a broad range of engine sizes including 4.8L/294, 5.3L/325, 5.7L/350, and 6.0L/364 variants. This manifold is compatible with both carbureted setups and electronic fuel injection (EFI) systems, though EFI applications will require the appropriate fuel rail kit. Designed with versatility and performance in mind, this intake manifold is perfect for enthusiasts seeking to maximize power output and driveability on LS-series engines with cathedral port cylinder heads. Its durable finish options also provide corrosion resistance and a clean, professional appearance. Installation is straightforward with detailed instructions available for download to guide you through the process. Upgrade your LS engine’s breathing capabilities and enjoy improved throttle response, enhanced torque, and reliable performance with this expertly engineered intake manifold.

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