I have a 2007 Road King and I purchased a Harley Davidson 103 engine, off a 2014 street glide. I also, would also like to purchase a new transmission. First question is will this engine work on my 2007 Road King without any modifications using my existing transmission? Second question, is a new, bolt in, transmission available, either in a screamin eagle transmission or an OEM factory replacement? I need help and have received different answers from three different dealerships. This seems like a straight forward issue but it is not based on the answers I have been given. Thank you all. I know someone so out there with the experience and knowledge to help me. Thanks again!