 I repowered a 1655 with a 5.9L Cummins engine with no turbo a few years ago. It can be done and it makes a really nice tractor when you get finished, but it is probably one of the hardest conversions I have done. The problem with this conversion is that you cannot use another frame in the front, the 1850 frame will not bolt up to the 1655 rear, it is too wide. So you have to knock the engine mounts out of the frame and either knock some of the bottom out for the oil pan or like I did, make a new oil pan that will fit through the hole. Going from a 265 or a 283 ci engine to a 360 ci engine in the same space in a 16xx tractor is a very tight fit. There is not much room to work and not much room for error. You do use the White American 60 or 80 flywheel, clutch, and PTO hub and use the 1850 diesel bell housing, only upside down because the clutch lever is backwards from an 1850 (who woulda thunk that!!) I have two 1655 tractors, a wide front Cummins powered tractor dynoed at 83HP and a narrow front 283 Waukesha tractor at about 75 HP. I can tell you there is no comparason in what they can do and how they drive. The Cummins engine really brings the one tractor to life, and makes it a lot nicer tractor to run. It starts all winter with no heater on the first crank. Go to my website and look under the 1655 project and I have outlined the conversion and the cost to me to do it. In my opinion if you are going to spend $6,000 on an engine, I would spend it on a Cummins and not a Waukesha, but that is just me :-)
| 
