Valve covers inside an engine can be painted.
The valve cover is located under the hood of a car to cover the engine, protecting it from dirt and debris. Painting this part of the engine is popular when it comes to tricked out cars with custom paint and accessories. There are a number of ways to paint these valve covers, ranging from different designs to colors that mean something to the car's owner.
Paint Like a Flag
Valve covers are often painted like flags of a particular country. This is popular because the valve cover is often rectangular, like a flag, and is a unique thing to see when you open up the hood of a car, with automobile machinery surrounding the painted flag itself. Flag-painted valve covers are most popular in cars that are racing in events, as the owners feel they really need to represent their country.
Car's Color
A simple, yet popular valve cover design is to match the outside color of the car to the valve cover under the hood. For example, a burgundy colored car would yield a burgundy colored valve cover, making it seem as if the exterior of the car was connected to what is covering the engine itself. However, if the car is a lighter color, like yellow or white, it's probably best to choose a different valve color paint design, as the cover will become dirty.
Logo Designs
Painting the logo of your automobile on the valve cover is another popular paint idea. The number of valves and horsepower can even be stenciled onto this valve cover paint design as well, giving anyone looking in at the engine all the information they need to know about the power of the car you are driving.