McCulloch BP Engines BP-1 chainsaw 1962 BP   SSS 199 BP   SST 399 The BP range of engine technology is great reading and shows some of the great leaps forward in two stroke performance. Recall the BP-1 Chainsaw was in production in 1962 light years ahead of the competition.

McCulloch  199 and 399 BP Snowmobile Motors McCulloch Engines Hi McBob, I saw the letter from Terry Mellen about his Mac collection and his snowmobile motor. My friend Jack Murray and I are working on some of the early karts that had the first Mac kart motors. Jack borrowed a scrapbook from one of the early karters that we knew and this picture of the 199 and 399 BP snowmobile motors was in the collection. The PR picture was probably sent to him from Chuck Hammond at Mcculloch. I haven't seen this picture for a long time and have never seen the motors either. Tom Smith