It is my 3400 that I call Green Ripper. It is a 3400 with a 5400 crank and a husky 395 p&c . The flywheel is a stock 4000 that fits on the 5400 crank in the perfect place so that i only had to open up the bearing bore and use a bigger bearing and seal. The rod fit the piston with no modification. Made a intake manifold for a 5400 carb. It is a true master piece of design when you get into it. It has a 4000 muffler on the husky cylinder. I so enjoyed going through the process of making it and running it, it's a Ripper for sure.