The Intake Manifold of the Chevrolet Express directs incoming air or the air fuel mix, ensuring equal, power-augmenting charges for each cylinder. Earlier versions of this van, which were equipped with either a carburetor or throttle body, utilized an Intake Manifold that mixed fuel and air within the runners. In contrast, newer multiport engine designs place the injectors at the ends of the runners, and the Intake Manifold now only guides the mixture. The updated direct injection gets the Intake Manifold to only carry clean air. The use of traditional cast iron or aluminum has been ditched in favor of a lighter composite plastic material that lets the Express become lighter and keeps the intake charge cooler so combustion will be stronger. In some designs, the Intake Manifold is divided into upper and lower halves, which are sealed using gaskets, an important feature that prevents vacuum leaks that could damage idle quality. Certain engines had variable length runners that altered the passage size for improving torque at low speed and horsepower at high revs, taking advantage of Helmholtz resonance. Inside the passages of the cooler also lie thermostats and temperature sensors that feed engine computers. Chevrolet owners appreciate these refinements for their smoother pulling power, better fuel mileage, and reliable sealing on every Chevrolet Express drive.
Each OEM Chevrolet Express Intake Manifold we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.