General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

103 kit question

Thread Tools
 
Search this Thread
 
Old Oct 11, 2009 | 12:00 PM
  #1  
MidnitEvil's Avatar
MidnitEvil
Thread Starter
|
Ultimate HDF Member
Joined: Aug 2008
Posts: 6,235
Likes: 65
From: Joliet, Illinois
Default 103 kit question

My jug gaskets have a slight leak. Eventually, they'll need to be replaced.

I'm thinking, if the jugs have to come off anyway, that might be a good excuse to throw on a big bore kit.

I asked the dealer service department about it. I already have the SE intake, and V&H longshots, I wouldn't need the whole kit. They quoted me a price of $1,561.89 - that's parts ($761.90) and labor ($800). That's seems awfully cheap. Does that sound right to you?

Looking at the kit, I don't see a crank. Wouldn't you need to replace the crank, going from an 88 to a 103?
 
Old Oct 11, 2009 | 12:05 PM
  #2  
RHillbilly's Avatar
RHillbilly
Road Warrior
Joined: Jan 2008
Posts: 1,446
Likes: 8
From: greenwood, mo
Default

yes you would only have 95 with just the kit
 
Old Oct 11, 2009 | 01:07 PM
  #3  
'05Train's Avatar
'05Train
Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
Default

That's correct, you would definitely need a crank. My 103 is being put together by JD's Cycleworks in PA. Now granted, I'm having an awful lot done to my motor (compression releases, Timken upgrade, gear drive, roller rockers, new clutch, closed-loop conversion, etc.), but I'm so far past $1561 it ain't funny. A crank alone is gonna run near a grand.

Just a "big bore" kit is gonna be 95ci.
 
Old Oct 11, 2009 | 01:21 PM
  #4  
harleydavis's Avatar
harleydavis
Outstanding HDF Member
Joined: May 2009
Posts: 2,932
Likes: 32
From: Broomfield, CO
Default

I agree with the other posts........you need a new flywheel assembly, which will cost at around $1200 to go from 88" to 103". I would find out if the $761 quoted to you for parts include new heads as well, or just the cylinders and pistons. You would definitely need heads that had greater flow (large intake and exhaust valves) if you want to benefit from pumping up your motor.........even if you just go to 95" motor with cams.
 
Old Oct 11, 2009 | 01:37 PM
  #5  
Faast Ed's Avatar
Faast Ed
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
Default

I agree with the other posts........you need a new flywheel assembly, which will cost at around $1200 to go from 88" to 103". I would find out if the $761 quoted to you for parts include new heads as well, or just the cylinders and pistons. You would definitely need heads that had greater flow (large intake and exhaust valves) if you want to benefit from pumping up your motor.........even if you just go to 95" motor with cams.

I am confident that headwork is not in his quote.
 
Old Oct 11, 2009 | 01:42 PM
  #6  
texas_speed_freak's Avatar
texas_speed_freak
Road Captain
Joined: Jun 2008
Posts: 572
Likes: 6
From: Ft. Worth, Texas
Default

as far as the heads just have yours ported when the big bore kit is installed. no need for expensive SE heads or otherwise.
 
Old Oct 11, 2009 | 01:50 PM
  #7  
'05Train's Avatar
'05Train
Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
Default

I'd guess that the quoted price is just for new jugs and pistons....not even cams.
 
Old Oct 11, 2009 | 09:43 PM
  #8  
MidnitEvil's Avatar
MidnitEvil
Thread Starter
|
Ultimate HDF Member
Joined: Aug 2008
Posts: 6,235
Likes: 65
From: Joliet, Illinois
Default

Rthomp... supposed to be jugs, pistons, 255 cams... not sure what else is or isn't there - we weren't talking in that much detail.

Thanks for everyone's input. I thought this sounded *way* too low for an 88 to 103 build. I'm thinking, depending on how you do it, the right price might be more like $3,000 just for parts.
 

Last edited by MidnitEvil; Oct 12, 2009 at 08:18 AM.
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-1

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-2

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-3

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-8

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-9

10 Motorcycles You Should Never Buy

 Joe Kucinski
Old Oct 11, 2009 | 10:06 PM
  #9  
DoobieBrother's Avatar
DoobieBrother
Cruiser
Joined: Aug 2008
Posts: 239
Likes: 1
Default

That's the standard Stage II 103" kit in the catalog with a ok/decent price on labor. But are you sure that works on an 88"? I looked up the same thing to do on a new 96".
 
Old Oct 12, 2009 | 07:20 AM
  #10  
'05Train's Avatar
'05Train
Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
Default

Originally Posted by MidnitEvil
Rthomp... supposed to be jugs, pistons, 255 cams... not sure what else is or isn't there - we weren't talking in that much detail.

Thanks for everyone's input. I thought this sounded *way* to low for an 88 to 103 build. I'm thinking, depending on how you do it, the right price might be more like $3,000 just for parts.
Yeah, I'm thinking there's no way you can go 103 from 88 for that little bit. The crank's at least a grand, then you've got pistons, jugs, cams. Then you've got all the various gaskets, pushrods, and stuff. Might as well do some headwork while you're in there, and swap to either gear drive or the new hydraulic tensioners. And since you've got the case apart, a Timken upgrade isn't a bad idea either. How about roller rockers? Say, is the stock clutch gonna work with all that newfound power?

Trust me, it adds up really quickly.
 



All times are GMT -5. The time now is 01:34 AM.

story-0
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-1
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-2
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-3
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-4
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-5
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-6
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-7
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-8
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-9
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE