Yesterday I was at my dealer, they told me that the parts were in to fix my head gasket leak (2007 SEUC with 7500 miles). I was talking to one of the owners. I mentioned the problems with with 110 head gasket and crank. He told me that Harley changed the way they were building their motors a couple of years ago and that the newer motors, not just the 110". seem to have problems when modified. He also mentioned that they had problems with cranks going back a couple of years, again, not just the 110.
It sounded to me that Harley had made a change in the way they are building this generation of V Twins, My take was the newer motors are not as strong and not built for additional horse power.
Harley should inform there customers of the change and let them know that their motors will not hold-up to any modification. I explained that the only modification I had made was to help the engine last (SE Race Tuner, Air Cleaner and Pipes). I told him that the factory setup pinged and ran hot as heck. He said he knew all the newer bikes ran hot. (Maybe these are the reasons they have two new 08 SEUlta's sitting on the showroom floor with no buyers).
They are taking care of me, I do have concerns, I am also happy I have an extended warranty. It sounds like It will be needed.
It is just sad that Harley cut corners on the new motor design. If I had it to do over again, I would keep my 2005 carb. FLHTC and upgrade with quality parts as needed.
I love the way my 07 SEUC runs, I Love the 6 Speed and I really like the look of the bike, I just wish Harley had done a better job enginering the motor.
Scottt