Aluminum Single-Plane Engine Intake Manifold, Black, designed for Chevy, Pontiac, Cadillac, and GMC LS Gen III/IV engines (LS1, LS2, LS6). Constructed from high-quality aluminum, this single-plane design provides maximum airflow potential for enhanced power gains, making it ideal for forced induction applications. Features include a 4150 square bore flange, front and rear heights of 5.417", and port dimensions of 2.50" H x 1.15" W. Optimized for the 2,500–7,000 RPM power band, this manifold delivers improved performance and reliable construction for LS engine enthusiasts.