going from a 103 to a 110

[ΚĜΗΟŜΤ]

Buddy of mine is looking at a new bike for him, it has a 103 and is thinking of having it reconfigured to a 110.

Could someone who may have done this give me "exactly" what is needed to do this?
A list of needed changes would be great!  Dont need to know the tiny details such as fastners and gaskets just the big parts (heads, jugs, [intake?] [fuel injectors?] I think you get what I am asking for) and any additional machine work required.

Thanks
K

[rigidthumper]

Remove engine, split cases, bore cases. If doing HD kit, uses CVO heads, 255 cams,  4" bore pistons/cylinders, stock rockers/boxes/throttle body, add SE clutch spring.

[dr. evil]

255's? Surely you jest...

[bigfoot5x]

When it is easy and relativiely cheap to reconfigure I do it. The means an 88"to 95" or 96"to 103". Once you have to split the cases it becomes much more difficult, expensive and time consuming. To me it is just to much work to remove the engine, completely disassemble and then bore the cases. Then it all has to go back together.  I'll stay content with a cammed 103" engine with maybe a little more compression. Or just buy a CVO with the 110 already in it. Lots of used CVO's with 110's out there now.

[N-gin]

I wouldn't go 110 for a tad more go to a stroker crank. 

[Jswerve]

I own a cvo with the 110. I would rather have a 103 and buy the 107 kit. Lots of issues with the 110 not what it's all cracked up to be. Just my opinion.

[05fatboy95]

In all reality going from 103" to 110" is very little bang for your buck. The 103" can go 107" for a lot less money.  If your going to split the cases go 117" or bigger. A well
Built 107" is better option for a 103" In my eyes.

[Jswerve]

In all reality going from 103" to 110" is very little bang for your buck. The 103" can go 107" for a lot less money.  If your going to split the cases go 117" or bigger. A well
Built 107" is better option for a 103" In my eyes.

Couldn't agree more.

[Phu Cat]

If he's gonna spend that much money, would it be possible to just go all out and go to 120"?  Are there jugs,pistons for that?

PC

[PoorUB]

In all reality going from 103" to 110" is very little bang for your buck. The 103" can go 107" for a lot less money.  If your going to split the cases go 117" or bigger. A well
Built 107" is better option for a 103" In my eyes.

Couldn't agree more.

What they said!

A 107" can be done for a lot less money. 110" and up require a complete tear down and bore the cases.

[Super Dave]

Somewhat related. Did the company figure out what the problem was with the 110's when they came out? I remember something about cylinder liners shifting.

[joe_lyons]

Actually for the same cost you could do a 117 kit.  1 less step when boring the cases and you still gotta buy pistons and cyls.

[05HarleyBagger]

Any info available regarding the parts needed and average cost of going to a good performing 107 ?
And other related parts and costs ?
Thanks........(already have a 2012.....103....in the garage )

[Jswerve]

Actually for the same cost you could do a 117 kit.  1 less step when boring the cases and you still gotta buy pistons and cyls.

Good to know. What's the best direction to go with a stock 110?

[joe_lyons]

Cams->heads->compression .  couple of places to buy 113 pistons and get your 110 cyls bored for them.

[Jswerve]

Cams->heads->compression .  couple of places to buy 113 pistons and get your 110 cyls bored for them.

Gotcha. Have cams,heads, and .030 gasket so far. Maybe pistons next

[joe_lyons]

Se makes some good pop up pistons or suburban speed for the 113 pistons.

[Jswerve]

Se makes some good pop up pistons or suburban speed for the 113 pistons.

Thanks Joe

[05fatboy95]

Se makes some good pop up pistons or suburban speed for the 113 pistons.

Bvhog has Mahle 113" pistons also .

[joe_lyons]

Cool I knew he had 107 and 113 pistons flat top but I didn't know about pop ups?  Bvhog at razorback is a great guy to deal with also.

[Mountainman streetbob]

Actually for the same cost you could do a 117 kit.  1 less step when boring the cases and you still gotta buy pistons and cyls.

[Jswerve]

Se makes some good pop up pistons or suburban speed for the 113 pistons.

What are pop up and suburban speed?

[sfmichael]

Se makes some good pop up pistons or suburban speed for the 113 pistons.

What are pop up and suburban speed?

Suburban Speed is a business that sells pistons.
"Pop-up" is a slang term for higher compression pistons, also often referred to as domed pistons because the top of the piston has a dome shape to it.
The poster referred to "SE pop-ups" meaning Screamin' Eagle (SE) higher compression pistons.

As everyone already suggested I'd go 107 (for lowest cost and bang-for-buck) or 117 if you're going to tear it all the way down.
Also like 120 and 124 options if you're really gonna dig in   

[Phu Cat]

With all this effort, has your buddy given any thought to just biting the bullet n buyii one of those 2014 some guys are braggin about?  It might be worth his time to just ride one before he commits that much time, effort, and cash.  Course it's only a minimal cash lay-out to buy a new bike as we all know......but it sure is fun!

PC       

[05fatboy95]

Cool I knew he had 107 and 113 pistons flat top but I didn't know about pop ups?  Bvhog at razorback is a great guy to deal with also.

I'm not sure if he has the pop-up pistons or not. Missed that part.