HUSQVARNA 394, 394XP CONVERSION KIT, 58MM BOG BORE KIT. REPLACES HUSQVARNA PART # 503460071. THE CYLINDER IS NIKASIL COATED. YOU GET ALL THE PARTS THAT YOU SEE IN THE PICTURE PLUS A CYLINDER BASE GASKET, MUFFLER GASKET AND A NIPPLE FOR THE IMPULSE THAT GOES ON THE CARB PUMP SIDE PLATE. YOU WILL ALSO BE EMAILED HUSQVARNA WORKSHOP MANUAL, PARTS LIST AND A DIAGRAM WHERE TO DRILL A HOLE IN TOP PLATE OF CARB FOR IMPULSE LINE. THIS KIT IS NOT MADE IN CHINA, THIS IS A VERY HIGH QUALITY CYLINDER AND PISTON KIT