The SHU01060 valve cover gaskets are designed for GM SBC small block engines, including models 283, 305, 327, 350, 383, and 400. Made of cork material with a thickness of .125 inches, these brown gaskets come in a pack of 2 and feature a bolt hole quantity of 4. Manufactured in China, the gaskets are suitable for placement on the left and right sides of the engine compartment, providing a reliable seal to prevent leaks and ensure proper engine performance. Additionally, the gaskets are compliant with California Prop 65 warning requirements regarding cancer and reproductive harm. Exact item set is shown. New open box with original packaging in fair condition. Each gasket has 4 bolt holes. 1/8 inch thickness. Made in China. No returns on installed items or partial sets. This item is new with opened or damaged packaging. It may or may not be a customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. It may show minor wear from handling. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.