Edelbrock Manifolds and Offenhauser intake manifolds

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Mar 09 2009

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Edelbrock Manifolds and Offenhauser intake manifolds

Posted at 2:04 am under intake manifolds

Edelbrock has been making intake manifolds for years, and produces manifolds of excellent quality. They are cast in aluminum in Edelbrock’s own foundry, and models are available for most cars of different types. Among the many products are the ford 360 Edelbrock intake manifold and the Edelbrock manifold gm crate 350 290 hp.

It seems a great idea to fit a hot intake manifold to your auto, but be careful. Before you buy a high-performance intake manifold, make sure there is enough space under the hood for the manifold and carburetor – measure up first. Also check for manifold leaks, and make sure you can cure them.

Then, there is the Edelbrock 2866 intake manifold, which is intended for high-performance GM 350 cu in engines for Nascar racing. It has large passages, with extra metal around for enlargement if necessary, and is suitable for engines that deliver power in the 5,000 to 8,500 rpm range. That’s a bit extreme – not ideal for a street car!

edelbrock 2866 intake manifold

Manifolds for V-8s with carburetors and fuel injection

Edelbrock started out making manifolds for V-8 engines with carburetors, but they also make manifolds for V-6s and other engine types. The intake manifolds for carburetors are both of single-plane and dual-plane types. The dual-plane types have four four passages running down fron higher that the other four passages. These edelbrock performer tbi dual plane manifolds are generally good for mid-range torque, giving power from 1,500 to 5,000 rpm. They are not so good for higher revs and high power outputs.

If you have a highly-tuned engine you will want a low, single-plane Edelbrock manifold that has larger ports, all coming from a plenum of larger volume at the same level – hence single-plane.

Edelbrock also caters for later engines, with its manifold designed for Ford and GM fuel injection engines, and also provides a combined manifold and air flow meter system which includes a large and tall upper manifold intake pipe. These high-performance manifolds are too tall to go under standard hoods.

Offenhauser intake manifolds

Offenshauser used to be big in engines and intake manifolds, as it produced the engines for all the Indy cars for years. Later it worked with Ford to produce a V-8 suitable for Indy racing. This engine was used initially in the Ford GT40s, but although it had sufficient power, it was not reliable enough for endurance racing.

You can get Offenhauser intake manifolds Ford engines, and for lots of the older engines found in hot rods. These are mainly for engines with carburetors – mostly the high-performance four-barrel type.

There are plenty of ways of improving performance with an intake manifold, starting with a spacer, and then moving up to a specially made manifold such as edelbrock manifolds or Offenhauser intake manifolds.