Gasket did not fit the valve cover for a Mitsubishi 3.0L 6 cylinder engine. Ended up purchasing from a local parts store. I took the old gasket to three different parts stores and found that the first two stores had the identical product that I purchased on line. The overall length of the gasket was approx. 1/2 inch too long. There must be an extreme variation in the mold process at Fel-Pro. Couldn't return the product since I tried to make the first on fit.... and destroyed the gasket in the process.. Buyer beware and make sure to match the new with the old before installing.