i had the tapered bearings for my 340 but dont like them they do fit but they dont sit flush with the head stock. so i bought the original races and loodse bearings the other week. they fit perfect. also the price was only a fiver more. you can get all your engine bearings from inmotion the 3 main bearings are C3s i can give you all the codes if you want but no need if your buying them from inmotion just tell them what you need they know witch bearings you will need.you done the correct colour for the S/Arm.