Big Bore Kit
Road Warrior
Joined: Aug 2008
Posts: 1,345
Likes: 0
From: Metro Denver
Not to be flippant, but if you use the Search function for the Touring Forum, you will find enough 103" threads to read for at least a month, if not 3 or 4 months.
You need to determine what your budget is, what your goal is for the end-result and then start research...
You need to determine what your budget is, what your goal is for the end-result and then start research...
Stellar HDF Member
Joined: Dec 2009
Posts: 2,560
Likes: 279
From: North Cental Iowa
Simple answer yes, there's no replacement for displacement,that being said your engine is just a big air pump, so the more air you can get in & out the more power you're going to make. Cams & ported heads make hp, cubic inches helps torque, the combination of the two makes for a good running bike. As said above there have been numerous threads about this subject, so do a search or talk to an expert engine builder & explain how you ride & what type of power you're looking for. HP & $$$ are directly related.
6th Gear
Joined: Jun 2009
Posts: 12
Likes: 0
From: South Bay, California
Does a 08 Street Glide count. If you do it take the time to do it right, do the heads... Talk to your builder and be very clear about what you want from the build, what is your riding style (it might just change a bit with more power 
)what are you using the bike for.Talk to your head porter and tell him what cams compression and head gasket you will be using. You will love it
)what are you using the bike for.Talk to your head porter and tell him what cams compression and head gasket you will be using. You will love it
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,897
From: Bedford UK
In addition to the suggestions above go to a builder and talk things through with him. There are several builders here on HDF who can also help. Talk through why you want to do this and they will provide you with a build that will do just that and probably more. Don't just fit a big bore kit and expect miracles! It takes a good builder to do that, to get the mix of parts and other mods just right.
Trending Topics
Road Warrior
Joined: Mar 2008
Posts: 1,783
Likes: 10
From: Oh
2. Big difference.
3. Only you can decide that question.
4. Advice and opinions on this site are not lacking. Everyone thinks you should get what they have, as it's the best.
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Road Master
Joined: Jul 2006
Posts: 862
Likes: 1
From: Western PA
What Smokindave said and..... picking what type of tuning device you will use and who is going to tune it is an important part of the decision.
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Tourer
Joined: Feb 2008
Posts: 333
Likes: 1
From: Northfield, NH
Thank you, I wasnt aware of that.
Not to be flippant, but if you use the Search function for the Touring Forum, you will find enough 103" threads to read for at least a month, if not 3 or 4 months.
You need to determine what your budget is, what your goal is for the end-result and then start research...
You need to determine what your budget is, what your goal is for the end-result and then start research...