Dual Plane Carburetor Intake Manifold For Cathedral Port LS Engines

This polished aluminum intake manifold converts LS style engines to a carburetor. Fits LS1, LS2, LS6 and any other LS style engine with cathedral port heads.• Basic Operating RPM Range: 1,500-6,500• Cast Aluminum Polished Finish•. 4150 Square bore flange• Interchanges with 300-130• Optimized runner layout and constant cross sectional area - broad torque curve, best engine performance from 1,500-6,500 RPM.• Cast aluminum construction - great manifold for carbureted or throttle body EFI street applications.• Efficient casting design - lightweight, consistent wall thicknesses, high quality casting.• Designed to work with all GM LS Gen III or IV engines equipped with LS1/LS2/LS6 style cathedral port cylinder heads. • Includes mounting hardware and gaskets.