This GM I6 Rocker Arm is a vintage part for 1962-1979 Chevy Chevelle, Camaro, and Nova. It has OE/OEM Part Numbers 5723551 and 75G3, and is made in the United States. This Rocker Arm is perfect for those who are looking for a replacement part for their classic car, and it comes with a manufacturer part number of 5723551 and 75G3. Please note that this item does not come with a manufacturer warranty.