THIS IS A NEW BARE HEAD WITH THE VALVES, GUIDES, SEALS, SPRINGS, SPRING KEEPERS AND VALVE COTTORS ALL NEW AND INSTALLED!! EVERYTHING ELSE WILL FIT FROM YOUR OLD HEAD,INCLUDING YOUR OLD CAM. THIS IS CLASSIFIED AS AN "OLD 70 HEAD" AND DOME. IT WILL REPLACE THE STOCK HEADS FROM 80 - 81 C70 PASSPORTS ALL CL/SL/XL70'S 69 - 81 CT70'S ALL ATC70'S ALL TRX70'S THE STOCK PISTONS FROM THE ABOVE MODELS WILL WORK WITH THIS HEAD.. O/S/E22/AFT @ PARTS THAT FIT THIS HEAD CLICK HERE @ PARTS THAT WORK IN THIS EMPTY HEAD