Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

over bore questions

Thread Tools
 
Search this Thread
 
Old Aug 4, 2014 | 08:04 PM
  #1  
bgdv1's Avatar
bgdv1
Thread Starter
|
Road Master
Joined: Sep 2011
Posts: 867
Likes: 224
From: Pa
Default over bore questions

i have a stg2 SE big bore kit in my 11Sg. I have a cold rattle in the front cylinder. I was wondering how far I can have the SE big bore 103 cyl. over bored and what would I end up with. while im having that done im yanking the 255 cams for 254E cams and ACR's installed.
 
Reply
Old Aug 5, 2014 | 06:02 AM
  #2  
Hillsidecycle.com's Avatar
Hillsidecycle.com
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
Default

You can bore to 107". (3.937", vs 3.875")
Scott
 
Reply
Old Aug 5, 2014 | 06:40 AM
  #3  
prodrag1320's Avatar
prodrag1320
Banned
Joined: Sep 2009
Posts: 3,569
Likes: 624
From: deland,florida
Default

one of the problems with the SE cylinders is that they are not bored to the pistons supplied with the kits,its a generic bore to fit ant SE piston (we only bore to EXACT pistons being used and on hand),like scott said,ide just 107"
 
Reply
Old Aug 5, 2014 | 06:02 PM
  #4  
Hillsidecycle.com's Avatar
Hillsidecycle.com
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
Default

But..........prior to considering cylinder boring, it may be a lifter bleeding down after it sits.
Scott
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MBrown
Exhaust System Topics
6
Apr 19, 2012 09:50 PM
SMSgt B
Touring Models
8
Dec 28, 2010 07:31 PM
GAstreetglide
Exhaust System Topics
25
Nov 26, 2008 08:21 AM
swampking
Motorcycle Parts For Sale-Misc. Parts
4
Nov 3, 2007 05:05 PM
swampking
Motorcycle Parts For Sale-Misc. Parts
5
Nov 2, 2007 06:00 AM




All times are GMT -5. The time now is 05:46 PM.

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