I spotted the post ' S&S vs Revtech ' IMO. There is no versus. There are some other specialty ( spelled bigger $buck ) engine mfgs. Out there as good as S&S but S&S has been doing it longer and has more experience plus they have their own FI system colaborated with Daytona Twin Tech engineering their engine management system. All the others are carbed engines and carbed engines aren't going to meet EPA in the near future.
![Numbers Numbers](http://forums.pelicanparts.com/uploads6/noverber+23+2003+ebay+7+1129951532.jpg)
Fuel injection and water cooled IS THE FUTURE. Ultima is ok.
![Ultima Engine Serial Numbers Ultima Engine Serial Numbers](https://assets.hemmings.com/story_image/228281-1000-0.jpg?rev=2)
I found on ultima's website that the first 2 numbers are the engine group which puts mine in the 114-130 ci group, the next 2 are the year, which makes mine a 2010,then there is supposed to be 4 numbers designating the engine number then the last is supposed to be a letter telling c.i. Of engine, but mine has the letter before the 4 numbers and the letter is not even on thier list, when i bought the bike the dealer claimed it was a 127 but i want to know for sure. Any help is greatly appreciated!! The representations expressed are the representations and opinions of the clubchopper.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners or moderators. Clubchopper.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you or have been given the expressed written consent to post. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s).
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Ultima motorcycle engine serial number http.