The Fel-Pro VS50145R Valve Cover Gasket Set is designed specifically for 1965-1979 Plymouth engines with sizes 383, 413, 426, and 440. This high-quality gasket set includes all the necessary components to ensure a secure seal on the valve cover, preventing leaks and ensuring optimal engine performance. With the trusted brand of Fel-Pro and its specific manufacturer part number, VS50145R, you can be confident in the quality and compatibility of this product for your classic Plymouth vehicle.