2017 Ultra 107 upgrade to 114 questions

Reply Subscribe

Thread Tools

Search this Thread

Dec 6, 2018 | 10:56 PM

Sheldeane

Thread Starter

Stage III

Joined: Oct 2017

Posts: 3

Likes: 0

From: Brisbane Australia

2017 Ultra 107 upgrade to 114 questions

Hey Lads, Iv'e just got hold of a complete top end off a 2018 Fat Boy 114.
Parts include heads, barrels, pistons, rings, fuel intake module, oil pump, injectors and a 25400190 cam Which i believe is of a 107 like mine.

Does anyone know if all these parts will bolt straight on to my current bike.....
I have a 5 year extended warranty so will get a shop to do it...
Cheers

Dec 6, 2018 | 11:06 PM

mjwebb

Seasoned HDF Member

Joined: Jan 2008

Posts: 13,619

Likes: 11,353

From: State of Confusion

Quote:

Originally Posted by Sheldeane

what are the Aussie HD Rules concerning warranty? even if they work, Stateside if installed after 60 days of new bike purchase they wouldn't be considered OEM parts therefore not qualifying for the same level of coverage...or maybe your extended 5 year is a different 3rd party that doesn't play by those rules..?? just thinking worth considering if you haven't already determined all that part

Dec 6, 2018 | 11:21 PM

Sheldeane

Thread Starter

Stage III

Joined: Oct 2017

Posts: 3

Likes: 0

From: Brisbane Australia

Thanks MJ ill check into that, good point..

Dec 7, 2018 | 12:25 AM

DTTJGlide

Stellar HDF Member

Joined: Dec 2009

Posts: 2,560

Likes: 279

From: North Cental Iowa

The pistons won't work, the stock 114 is 4.5" stroke & 107 is 4.375", piston will be .0625+ below the top of the cylinders = low compression ratio. The heads, intake, injectors, & cams are the same as your 107, the oil pump is probably the latest version & the cylinders are a little thicker sleeve so they can be over bored a little larger. Sorry but no real bolt on improvements with what you bought.

Dec 7, 2018 | 05:39 AM

Peter Quinn

Road Captain

Joined: Sep 2012

Posts: 609

Likes: 159

From: Allover

As you are taking it to the dealer to do the conversion,you should ask them about compatibility ?

Dec 7, 2018 | 06:51 AM

modes

Road Master

Joined: Jul 2005

Posts: 1,118

Likes: 26

From: OOB, Maine

Quote:

Originally Posted by mjwebb

I think we, USA, are the only warranty issue country due to our EPA's Decree. If there were something like Magnuson-Moss Warranty Act there, then the aftermarket parts, after the 60 days, would have to be proven as culprit of the failure.

Adam

Dec 7, 2018 | 07:26 AM

msnyder

Intermediate

Joined: Apr 2013

Posts: 40

Likes: 15

From: Asheville, NC

Quote:

Originally Posted by Sheldeane

You might as well put those heads up for sale too.... soft tail air/oil cooled, limeted would be twin cooled. the cylinders are good to have if you want to have them bored and get the proper [for your build] pistons...

7 Surprising Harley-Davidson Products that Are Not Motorcycles

Verdad Gallardo

8 Best Harley-Davidson Motorcycles Ever

Pouria Savadkouei

10 Worst Harley-Davidson Motorcycles Ever

Pouria Savadkouei

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Verdad Gallardo

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Verdad Gallardo

Harley-Davidson Reveals Super Cool Cafe Racer Concept

Verdad Gallardo

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Verdad Gallardo

10 Motorcycles You Should Never Buy

Joe Kucinski

10 Things Harley-Davidson Needs to Fix in 2026

Verdad Gallardo

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Verdad Gallardo

Dec 8, 2018 | 08:07 AM

rdc401

Road Master

Joined: Jun 2010

Posts: 1,159

Likes: 120

From: pontotoc ms

I believe you can take them 114 cylinders and bore them to 120.Thats what I would do,use your heads may have to change springs.pick the cam you want and set the 120 to the compression the cam needs,oh and get bigger throttle body and injectors.
than sale off the leftover parts,to offset some of you cost.