Since it is the key to achieve excellent engine performance, every part of your Lincoln intake system really matters. This system is responsible for acquiring quality air – cool, clean and compact – that's required for proper engine operation. One of the components that give your heavy breathing drive train the quality air it requires is your Lincoln intake manifold.
Lincoln intake manifold is a mechanism that conducts the fuel mixture from the throttle body to the valve ports. It does a very basic yet significant function and that is to take the air as it gets in the engine and leads it via intake passages into the runner ports located in the cylinder heads. The air that enters the engine is mixed with fuel to significantly produce power during the combustion process. The Lincoln intake manifold design greatly affects engine performance throughout its operating range. And to achieve even and smooth operation, the fuel charge delivered in every cylinder should have the same strength and quality. And the fuel distribution should always be even as possible.
There are two primary types of intake manifolds – the single plane and the dual plane intake manifold. As its name implies, the dual plane intake manifold splits down or separates the carb down the middle to feed four cylinders from two barrels and another four cylinders from the other two barrels. Dual plane intake manifold performs best in an engine designed to produce lots of torque under low RPM.
On the other hand, the single-plane intake manifold features a large area under the carburetor dubbed as plenum. It draws air from all four barrels and gives out the air and fuel to all the cylinders. This type of intake manifold is aimed for high RPM applications. Automotive intake manifolds are also classified into units for small blocks and big blocks as well as for track and street applications.