Complete 1600cc engine rebuild kit Upgrade your 1300cc twin port motor Includes all necessary engine parts This 1600cc top end engine rebuild kit provides everything needed to overhaul your engine or convert it to run on unleaded petrol. It’s also the perfect solution for upgrading your 1300cc twin port motor to a 1600cc motor, giving you enhanced performance and reliability. Included in the kit are a pair of assembled 1600cc twin port cylinder heads, 1600cc barrels and pistons (complete with piston rings, gudgeon pins, and circlips), a full engine gasket set, a set of 8 pushrod tubes, a crankshaft oil seal, and 4 NGK spark plugs.