This Head rebuild package is gathered together to provide quality parts for your SR engine head rebuild. Only item that is not included is Camshafts and Valves. We trust brand name quality parts like Cometic, ARP, Supertech,Cosworth, Greddy and Brian Crower to provide a reliable and easy install. If you have any questions on what camshafts to us, please call or email us and we can better assist you with recommendations dependent on your current SR20DET Setup