Edelbrock Manifold RPM Air Gap Oldsmobile 455

If you're looking to get more power out of your big-block Oldsmobile 400 or 455 engine, this Edelbrock RPM Air-Gap intake manifold is a solid choice. It's designed for aggressive street and strip applications, aiming to boost horsepower significantly between 1500 and 6500 RPM. This manifold is particularly effective when paired with an engine that has a more aggressive camshaft, as it can handle the increased airflow needed to take advantage of that setup.

What sets this manifold apart is Edelbrock's well-known Air-Gap design. This feature physically separates the intake runners from the hot engine oil circulating below. By keeping the air charge cooler and denser, you get a noticeable increase in power. It's built in the U.S.A. to high standards and can work with stock cylinder heads, though it's engineered to perform even better when matched with Edelbrock's RPM cylinder heads, like part #60519, for optimal performance gains.

This manifold fits a wide range of vehicles, including many Buick, Oldsmobile, and Pontiac models from the 1960s and 1970s. Keep in mind that it's not compatible with EGR systems or spread-bore carburetors, and it is not CARB approved, so it cannot be shipped to California. It's a substantial upgrade for enthusiasts looking to maximize their engine's potential.