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) Pipe Plug: 3/8 in. NPT with 8mm hex/allen head (used to block the manifold vacuum port if necessary)
• (8) Viton O-ring cylinder head mounting flange gaskets