This superb DED billet aluminum head has a 1.250" (31.75mm) intake valve and a .975" (24.765mm) ecxhaust valve. The valves are moved to the left so the intake valve isn't shrouded by the combustion chamber and cylinder wal to improve flow. Designed specifically for the 212 to 236cc engines.
It has a combustion chamber volume of 14 ccs.