Offenhauser 5820 Quadrajet Carburetor Adapter
$137.00Adapter to raise the existing carburetor 2″ on different applications where a Hi RISE action can be advantageous for better gas flow. Shipping weight Approx 3 lbs.
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Adapter to raise the existing carburetor 2″ on different applications where a Hi RISE action can be advantageous for better gas flow. Shipping weight Approx 3 lbs.

Adapter to raise the existing carburetor 2″ on different applications where a Hi RISE action can be advantageous for better gas flow. Shipping weight Approx 3 lbs.

Offenhauser 5822 Oldsmobile 330-350-403 Equa Flow Hi-Rise Single Quad Manifold

Transmission Bolt Flanges to Jeep & Toyota Transmissions

5830 – Carb Adapter – 2″ Hi-Rise Quadrajet Carb to regular Quad Carb Base

Offenhauser 5832 Carburetor Adapter. Comes in a pair. Mount two Holley Carburetors on your Dual Quad Manifold. Staggered pattern allows carbs to be placed in opposite directions enabling the installation of large CFM Holley Carburetors when needed.

Offenhauser 5874 360 Equa-Flow Single Quad Hi-Rise Intake Manifold. For Buick 400, 430-455 through 1971.

The Offenhauser 5880 1/2 is a single carb adapter plate. Sold individually.

Offenhauser 5880 Carb Adapter, Sold as a pair. Permits carburetors to be spaced 1/2″ each way which in some cases will allow installation of Holley carbs. Also can be used to space carbs to front or rear of manifolds.

Now available in two versions:
– 5881 – Polished finish
– 5881 NP – Non-polished version, perfect for custom paint or coatings

The Offenhauser Buick 400-430-455 Dual Quad Hi-Rise Manifold for Big Block Buick is a 360 Equa-Flow Manifold.

Ford 351 Windsor (eight bolt holes per side) – fits 1969–1974 engines and custom performance builds.
Includes Fuel Rails and finned aluminum Rail Holders.