Hi
thanks for your reply also want to inform you that i also have two brand new pistons along with rings and wrist pins one of them is 40 mm and the other is 42 mm but the wall thickness along with the old piston is 5mm and if i put a 40 mm piston then it goes to 3mm wall thichness and a displacement of 42cc and with 42mm piston it goes to 2 mm wall thichnessand the displacement is 47 cc so please suggest me the best piston to replace with


waiting for your suggestions
Abdul Samad