Other than the head can anyone tell me what the difference is between the 09 800, and the 2012 800. I found a 2012 with a blown engine, and I have a 09 800 sitting on my shelf. Is it possible or 2 different ?
if your a good tuner you might get it to work but the head, jugs and crank are different on the 10 - 17 motor and for the better.
you can pick up a long block motor for the 12 in the swapp for a 1000 and sell the 09 if you can whole or parts.
the 12 is an HO motor and the 07-09 is not.
or find out what your need to rebuild the 12 motor...
Outside dimensions are the same so it should bolt right in.
Mapping is a lot different. If u have the computer for the 09 u might be able to make it work or maybe get a boondocker box and adjust it. Not sure how it will run with the exhaust from the 12?