Whatever material the intake manifold on your vehicle is made of, it’s the platform that distributes
air/fuel mixture from the carburetor or throttle body fuel injection to the cylinders. Efficiently and evenly
distributing this mixture is this part's primary function, but coolant and recirculating exhaust gas also
utilize it to cool and properly vent your vehicle’s engine.
Historically constructed of cast iron, it's
common today to find both plastic and aluminum intake manifolds at work in everyday vehicles. Both
of these materials naturally represent a reduction in the part's weight as compared to cast iron, and less
weight means better fuel efficiency.
However, conserving gas is not something you're overly
concerned about if performance is your goal. In fact, the greater the fuel consumption of your race engine,
the better. Aluminum intake manifolds like our selection of Edelbrock, Holley and Weiand parts
see to it that your engine gets the gas it needs to jump off the starting line and go. They do this by
increasing throttle response and widening the engine's torque curve. They are also usually taller than
a stock manifold, giving the air/fuel mixture a chance to build velocity before it gets sucked into the
cylinders. Performance manifolds might also have a different plenum design to optimize the path of the
fuel/air mixture on its way to the cylinders.
While serving the same purpose on a different performance scale, plastic intake manifolds offer other
advantages than guzzling gas. Thought of more in terms of miles per gallon than miles per hour, they
obviously weigh less. They also mean a cost savings for both manufacturers and owners who need to purchase
an aftermarket part.
You can count on us to offer hundreds of different intake manifolds from top manufacturers. Use our
Part Compatibility engine to learn which parts are right for your vehicle and see valuable warranty
information. Like most critical engine parts, intake manifolds require gaskets
to keep their interiors -- where the actual work takes place -- sealed, so check out our line of these
related products to find everything you need for your repair job.