03 vs 05 Heritage Classic (differences)
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Road Captain
Joined: Aug 2005
Posts: 640
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From: NC
03 vs 05 Heritage Classic (differences)
The reason I am asking is I had an 05 and sold it. I went touring frame since, but now would like to get an older heritage.
I am looking at a low mileage 03 fuel injected heritage.
I know 88ci/5 speed is the same. I was wanting to know if any stator/wiring/electrical changes between 03-05
I am looking at a low mileage 03 fuel injected heritage.
I know 88ci/5 speed is the same. I was wanting to know if any stator/wiring/electrical changes between 03-05
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,161
Likes: 11,252
From: San Diego, CA
The 2005 Twin Cam heads changed intake valves (same as sportster) and to the beehive valve springs...?? I seem to remember they had an issue with the valve stems/seals.. I recall people didn't think they were as good as the previous ones, but I don't remember for sure, as I have an '01, '03, so only owned early 88" twin cams
They were the same castings as the other years... so..... Not that big a deal... If you want to go to a big bore and/or w/aggressive cams, just do some headwork too, I did with my '03 just on principle....
Also, I believe 2005 was the first year with cast cranks...
'99- '02 - hot forged cranks and Timken bearing
'03-'04- cold forged cranks and roller bearing
'05+ cast cranks and roller bearing.
Again, unless going big bore and big HP, not a big deal.....
But to answer your specific question, I don't believe there are any changes to the stator, wiring, or electrical.... per the online parts finder, the both use the same stator and regulator part numbers...
PS- I found this thread I saved that covers the head changes.
https://www.hdforums.com/forum/engin...-05-heads.html
Last edited by hattitude; Oct 21, 2022 at 10:58 PM.
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