The AMC Engine Camshaft - 666863 is the perfect choice for your engine rebuild. This camshaft is designed to provide increased performance and reliability for your AMC engine. It features precision-ground lobes and journals for smooth operation and extended life. The camshaft is machined from high-grade steel for superior strength and durability. Its advanced design allows for improved air flow and higher compression, giving you more power and improved fuel economy. With its easy installation and long-lasting performance, the AMC Engine Camshaft - 666863 is the perfect choice for your engine rebuild.