Offenhauser 5206 Mopar Dual Quad Low Profile intake manifold

Description

Offenhauser 360 degree Equa-Flow Manifolds are engineered to overcome the problem of starved cylinders by providing the flow characteristics necessary for maximum horsepower output. The 360 Degree Equa-Flow design means that every cylinder receives the same amount of air/fuel mix.

Offenhauser part number 5206 is a dual quad intake manifold designed for Chrysler B/RB series “wedge” big block V8 engines. Specifically, it fits the following:

• Engines: Chrysler B/RB series engines, including 413, 426 Wedge (not Hemi), and 440 cubic inch V8s.
• Typical Applications: This covers a range of Mopar vehicles from the early 1960s up through the 1970s, including:
• Dodge and Plymouth cars such as the Charger, Coronet, Super Bee, Road Runner, GTX, Fury, Polara, and more.
• Chrysler models equipped with these big block engines.
• Also used in various marine applications using Chrysler 413 dual quads.

The 5206 is a single-plane, low-profile intake with a divided plenum design. It uses adapter plates for mounting carburetors and is intended to work primarily with Carter AFB and Edelbrock carburetors; Holley carburetors typically do not fit without modification or adapters.

This manifold is often sought after for both automotive and marine builds looking to improve performance over the original cast iron manifolds, offering better airflow for engines built for street/strip performance or custom marine use.