Here is a complete set of 6 intake and 6 exhaust valves GM replacement valves, the old Chevrolet part numbers 609379 and 609380. They list for 1934 truck and master model cars and early production 1935 motor. These valves are for use with U-shaped keys and replace the original valves that had a slot in top end and used a rectangular key. These valves are not for the 1936-35 head with casting number 837981. So check your numbers before you buy these. Check out my E-bay store for other items.