A Chevrolet C3500 engine is typical in that it has two manifolds: one for intake and the other for exhaust. The intake manifold, also known as the "inlet," allows the air-fuel mixture to enter the cylinders. The exhaust manifold is also called the "header." It gathers waste gases as they exit the cylinders after firing, and moves them along into the exhaust system.

Because these exhaust gases are quite hot, the Chevrolet C3500 header is made from cast iron that is able to withstand extremely high temperatures that the ignition process generates. Inside the exhaust manifold, waste gases pass into the catalytic converter.

There two types of headers consist of the common "collector style," which is made up of pipes merging into the collector. The other one, known as a "zoomie" header, is usually found only on racing cars and do not have collectors. The stock Chevrolet C3500 header is of the collector type. Headers from after market sources are fairly common, and many auto manufacturers use these as their stock equipment nowadays. The Chevrolet C3500 enough horsepower for the toughest jobs and the most grueling conditions, but if you need just a little more, give some thought to replacing your stock Chevrolet C3500 exhaust manifold with a custom header. These are manufactured to the highest standards especially for the Chevrolet C3500. We have several different brands of custom headers in our warehouse, and our prices on various Chevrolet C3500 header models are the lowest you'll see anywhere else.When you're trying to raise the horsepower on your Chevrolet C3500 engine, shop with us first and save time and money.