This is a 12G940 head with correct Cooper S big valves, double springs and has been ported. The valve sizes are 35.5inlet 29.2 exhaust, so big valve head. The inlet and exhaust ports are bigger and the inlets have been ported. Will fit any 1275 engine. ANY questions or extra photos please ask. Others may want it! Thanks for looking, and good luck! THIS HAS BEEN IMPOSED BY THE COURIERS, NOT ME. PLEASE PLEASE PROVIDE THIS WHEN PAYING. Buyers from Highlands, Northern Ireland, IOW, Chanel Islands, etc, etc. If it's a larger item, it will cost more to courier to you. Please wait for an invoice. The courier companies price…