Softail Models Standard, Custom, Night Train, Deuce, Springer, Heritage, Fatboy, Deluxe, Rocker and Cross Bones.
Sponsored by:
Sponsored by:

2003 Fatboy rod knock

Thread Tools
 
Search this Thread
 
Old Feb 21, 2019 | 01:20 AM
  #1  
Wizardbeard's Avatar
Wizardbeard
Thread Starter
|
Stage II
Joined: Feb 2019
Posts: 2
Likes: 0
From: NY
Default 2003 Fatboy rod knock

New to the forum. I’m looking for some help/advice/information.

I have a 2003 fatboy with 88” fuel injected 5 spd. Stock motor with air cleaner, pipes and SE race tuner. Developed a rod knock. Now I don’t know what to do.

I am talking to a fella 100 miles away from me that has a 96” with 6 spd trans out of a 2007 night train. Did some research and got mixed answers about it bolting up and the wire harness and ECM working from my 03’.

I have also looked into a complete rebuild going to a 95” or bigger, The Harley long block exchange program, after market engines and also considered just getting another used 88.

What are your thoughts/advice/input? If it would work I would like to swap the 96 with the 6 spd. As I can get that at a pretty reasonable price. I don’t have a huge budget. I have about $4,000. But if I could I’d like to do it for less.
 
Reply
Old Feb 21, 2019 | 04:51 AM
  #2  
RANGER73's Avatar
RANGER73
Club Member
Veteran: Army
Joined: Sep 2010
Posts: 15,435
Likes: 7,127
From: Beyond Fucital
Default

Tear it down and see if it's fixable. It could be something simple. It's not like you wouldn't be taking things apart anyway.
Unless you're not doing your own wrenching.
 
Reply
Old Feb 21, 2019 | 09:37 AM
  #3  
SafetyFifth's Avatar
SafetyFifth
Cruiser
10 Year Member
Liked
Loved
Joined: Nov 2015
Posts: 204
Likes: 61
From: Arkansas
Default

I'd forget that 96 motor. Isnt going to be a easy swap. Your primary wont bolt up to that engine.

I echo ranger, have a reputable mechanic tear down your 88 and see really whats going on. Could be a easy fix, if not then look into your options. Take out 88 inch motors are ALL OVER ebay for great prices.
 
Reply
Old Feb 21, 2019 | 04:49 PM
  #4  
Wizardbeard's Avatar
Wizardbeard
Thread Starter
|
Stage II
Joined: Feb 2019
Posts: 2
Likes: 0
From: NY
Default

I plan on doing the work myself. Never had a Hd engine apart. I’ll get a service manual and figure it out.


Also the 96” includes the primary. I can get it all for $1700 and drive 200 miles round trip
 

Last edited by Wizardbeard; Feb 21, 2019 at 04:53 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tschroer
Primary/Transmission/Driveline/Clutch
5
Jun 3, 2019 07:25 PM
fxdx1985
Dyna Glide Models
21
Nov 12, 2018 03:28 PM
dab102999
Ignition/Tuner/ECM/Fuel Injection
4
Jun 23, 2017 09:32 AM
cop242
Exhaust System Topics
1
Sep 5, 2011 09:09 AM
cop242
Engine Mechanical Topics
1
Sep 4, 2011 09:33 AM




All times are GMT -5. The time now is 02:48 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE