103 vs 107?? why or why not??

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Jan 16, 2012 | 06:10 PM

#11

ghostrider69

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Joined: Aug 2009

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From: Republic of Texas

If you are going to pull the topend apart you might as well go ahead and go as big as you can. Which would be a 107 kit. There's no replacement for displacement. Now if you want to go bigger then you'll have to pull the engine and get the cases bored.

Jan 16, 2012 | 06:15 PM

#12

MattcW78

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Joined: Feb 2011

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I went with Harleys SE 103 stage 4 kit because it came complete and took all the guess work out of what parts would work well together. Most of the mechanics I talked to persuaded me out of a 110 because of the aditional cost of splitting the cases. If I was going bigger than 103 or 107 I'd buy a se120r.

Jan 16, 2012 | 07:29 PM

#13

dbrown5

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From: liberty sc

how much more hp should i get from one to the other

Jan 16, 2012 | 08:53 PM

#14

Seener84

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From: Winston-Salem NC

Subscribed; I'm contemplating between the two right now too.

Jan 16, 2012 | 10:32 PM

#15

beaureed445

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Joined: Oct 2007

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From: Edmond, Ok

If I were starting from scratch again, with a 96" motor, I'd go to 107". If I'd done that, it would've saved me a lot of time and $$$ making changes to squeeze more power out of it. Power is a VERY addictive drug- the more you have, the more you want! Do you have a budget for the project?

Jan 16, 2012 | 11:22 PM

#16

thaghost

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Joined: Jun 2011

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From: Winter Garden, FL

120R ftw

Jan 17, 2012 | 09:21 AM

#17

Nick

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Joined: Aug 2006

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From: East TN

Quote:

Originally Posted by beaureed445

So did you start fron a 96 to a 103 and now have a 107.. if so how noticable is the difference between 103-107.?. Im sure they are both night and day over the 96

Jan 17, 2012 | 01:46 PM

#18

icebite1

Road Warrior

Joined: Sep 2009

Posts: 1,267

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From: Northern Michigan

Im doing the 107" Fuelmoto kit with with their "B" head job and having the TB and manifold polished also on wifes TriGlide. Tubby needs the xtra hp/tq. , Now the 103"jugs & pistons im putting on my '09 Dyna along with a head & TB job.
If the 107" runs as strong as i think it will im gonna do it on my '07FLSTN.
If I wasnt gettin a basically free 103" upgrade for my dyna I would have gone with the 107 kit.
IMO: Go with the 107" kit.