Any time two pieces of metal that fluids or air flow through meet there is potential for leaks. A gasket is placed between these two pieces of metal before they are fastened together, which then fills in the gaps and prevents leaks. It’s a simple concept, but a lot of chemical and mechanical engineering has gone into gasket design, as well as designing the material they are made out of, to ensure gaskets can hold up to the demands of modern engines, which are very different than they used to be. Of course, the older a vehicle is the greater the need for specialized gasket technologies, since as an engine ages the potential for leaks is much greater.
Fel-Pro gaskets have the manufacturing capabilities and resources of Federal-Mogul behind them, including aftermarket engineers who are always pushing the envelope to deliver new problem-solving sealing solutions. You can always depend on Fel-Pro to deliver products you can have total confidence in.