Was talking to John Hackett today ,he has just returned from America,and he bought a pair of 888 corse heads whilst he was there,he needs them for his 888 corse as it has a damaged head,but he will have one undamaged head for sale. I told him i would post this ,so if it is any use give him a ring . Butch P.s he thinks the valves are 36 or37/31