What Vacuums Lines Do I Need SBC

Vacuums Lines Do I Need SBC

What Vacuums Lines Do I Need SBC? Vacuums can be used as a power source. This is their main purpose in vehicles, where they gear up or power all types of things which includes the vacuum brake booster, the PCV valve, heat controller, and vacuum advance.

Vacuum Lines Are Necessary 

To allow the combustion process and relieve the pressure to fire and expel the exhaust correctly, vacuum lines are require. If the vacuum lines break, are disconnect, or leak, this may cause multiple mechanical problems. From a simple engine problem, it can cause a full engine shutdown or breakdown. 

Most people fail to realize the importance of vacuum lines and how necessary is the airflow to run the vehicle. Nearly every system requires proper airflow which enables the engine to run smoothly. If the vacuum lines are not working the vacuum parts of the engine, the overall performance of the engine would decrease.

What Are Vacuum Lines

Vacuum hoses are flexible tubes that are use to transmit vacuum power throughout the entire vehicle. When vacuum hoses become smaller they are refer to as vacuum lines or even vacuum tubing. But they all work in one way.

There are many vacuum lines in a car, their function is to run from your intake manifold and carry air into the engine and other parts of the engine. 

Every vehicle that runs on the gas has at least some vacuum lines, but some cars run on diesel and still have vacuum lines. However, diesel engines don’t naturally make vacuum, so that the diesel engines are then well equip with a plate or vacuum pump which allows them to produce the air

What Are Vacuum Lines Use For

In the history of the automobile, the manifold vacuum was harness to power multiple different accessories and components of an engine. Before the electrical systems were unable to handle very heavy-duty loads that is why manifold vacuums were readily available to run on gas. 

Vacuum lines are use to connect ports to multiple components and accessories. You can also find vacuum ports on throttle bodies and carbs.

 Vacuum Lines Need SBC

Types of Vacuum Lines SBC

  • EGR Valve 

Exhaust Gas Recirculation connects the exhaust manifold and intakes the manifold is control by either the vacuum or built-in electric step motor. The function of the Exhaust Gas Recirculation valve is to control the flow of exhaust gas which is being recirculate depending on the engine.

  • Distributor 

This is an enclosed rotating shaft that is use in the spark-ignition internal combustion of engines. Engines that have mechanically timed ignition power. The main function of the distributor is to route the secondary and high voltage current through the ignition coil to the spark of plugs in the proper order. That also in the proper amount of time.

  • PCV Valve

PCV valve controls the emissions. It transfers the gases produce by the crankcase and takes them back into your engine’s combustion chamber. It will be safely burned without damaging your vehicle and the environment. While these gases leave the crankcase through the PCV valve, they can not return to it.

  • Check Valve

If the pressure in the pipe changes and causes flow reversal, these valves known as check valves protect the pump and other accessories from damage caused by the reversed flow. They are used in multiple functions for controlling flow, line isolation, media injection, priming pumps, and maintaining head pressure.

  • Electrovanne Solenoid Valve

These valves known as Solenoid valves are used in fluid power pneumatic and hydraulic systems, these control the cylinders, power fluids, power motors, or industrial valves.


There are many types of vacuum lines that are specifically designed for different engines. The above-mentioned vacuum lines are needed for sbc and without these lines, the engine would not perform up to the mark. Vacuum lines are an important part of an engine it is better to have complete knowledge about it.

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