on a 2005 fat boy is there a way to tell if you have a 1450 or 1550
1hd1bxb1x64 serial no.

 

The 2005 FLSTFI Annv Model was the only Fat boy that came stock with a 1550 (95ci) engine. I dont know serial # but the Annv is easy to spot only came in Silver with a natural engine or Black with a black engine. Both have painted oil tanks (not chrome like other Fatboys) and both have Gold tank emblems. Other things are tthe AC insert says 95 ci Annver. Model and on the gas tank console it says Annv Model as well as the timing cover. This was a limited edition model.

There was also the satndard 2005 Fat Boy produced in 2005 but it had the standard 88 engine, The gas tank had the standard decal type emblems, chrome oil tank ect