This piston & cylinder kit from AA Performance is suitable to tune the engine block from 1200cc to a cylinder capacity of 1385cc.  The  side of the case needs a boring of 87mm for a correct assembly, the side of the cylinder head needs a boring of 90mm.  This kit contains 4 cylinders, 4 pistons, 4 piston pins and 4 pair of clips to secure the piston pins. From now on these kits are available from stock.