Engine Timing Set (9-0385SC) by Cloyes®. Keep your engine’s valvetrain in perfect time with Cloyes, the world leader in timing drive systems. No matter whether you need a timing gear or complete timing gear set, Cloyes has the OE quality parts that will fit right and deliver optimal performance. Sprockets are made from high alloy steel, and heat-treated for durability. Chain is pre-stressed and heat-treated for longevity.