Polished Aluminum Intake Manifold for LS Swap Carburetor Conversion. Cathedral Port.

Convert your LS Style engine to a carburetor using this intake manifold. This fits 4.8L, 5.3L, 5.7L, and 6.0L GM Chevy engines with cathedral port heads. This is the polished aluminum version of this manifold. Features: GM LS Mid-Rise Single Plane Intake Manifold.  Polished aluminum finish  Designed for GM LS Style engines with cathedral port heads. This will convert your engine to a 4-BBL carburetor or EFI throttle body Accepts a 4150/4160 square bore flange with up to a 1.750 in. diameter throttle bore Mid-Rise single-plane design provides optimum performance and fuel distribution.  Port Dimensions: .919 in. W x 2.700 in. H Carb Pad Height = 4.950 in. Carburetor Flange Angle: 0 degree Vacuum Port Thread: 3/8 in. NPT (8) Intake runner bosses cast in for nitrous or fuel injector ports Intake Manifold Includes: (6) Mounting Bolts: M6-1 x 88.91 UHL Zinc-plated with 10mm hex head (4) Mounting Bolts: M6-1 x 64.65 UHL Zinc-plated with 10mm hex head (10) Flat Washers: 6mm Zinc-plated (1)