Always allow the engine to cool down before trying to access the valve cover and consult the owner's manual on how to remove it. You may need to remove some plumbing or parts, including PVC hoses, ...

Want to know how the brain of your engine—the camshaft—and associated parts conspire to make max power? Here's HOT ROD's guide to all things V-8 valvetrain.

Ford Racing Performance Parts offers CNC-ported, three-valve cylinder heads. They feature massaged intake and exhaust ports as well as reworked combustion chambers.

As mentioned, the EGR valve in your diesel engine is an important component, both for your vehicle's performance and the environment. However, like many other auto parts, it's subject to wear and ...

When intake valves open, they take in a given amount of air. One large intake valve cannot suck in the amount that two smaller valves can handle. The same goes for the exhaust valves that let gas out.

You'll need a compatible exhaust system with all the necessary parts and, ideally, a tune or controller that integrates with your car's ECU. Kits from companies like LMR offer bolt-on solutions ...

Some parts of the formula affect the final outcome more than others. ... Let's say it is 0.100 inch off-center toward the exhaust side of the valve center.

Cobra Technology and Lifestyle dual-mode exhaust – Click above to watch video after the jump. German tuner Cobra Technology and Lifestyle has developed a range of aesthetic and performance parts ...

According to Delphi Technologies, an auto parts and technology company, the valve is important because it regulates the flow of exhaust gases to the engine intake system, resulting in increased ...

Exhaust valves are a different story. The margin for an exhaust valve should be larger to improve heat dissipation—generally around 0.080-0.100 inch.

The German arms and automotive company, Rheinmetall, announced on Tuesday that it will begin to manufacture exhaust gas recirculation valves or EGR for a "renowned car manufacturer" that it did ...