Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
Sponsored by:
Sponsored by:

Engine Build

Thread Tools
 
Search this Thread
 
Old Sep 15, 2017 | 08:36 AM
  #1  
Blue Tick's Avatar
Blue Tick
Thread Starter
|
Road Master
Joined: Jul 2015
Posts: 821
Likes: 54
From: Tomball, Tx.
Default Engine Build

Out of curiosity.....besides the normal cams, pushrods and current kits available for the M8, if you were to do a complete rebuild or replacement of the M8 what would you do and why? I've been toying with the idea of doing a FM 117/120 or a complete crate motor. Seems there aren't many aftermarket ported heads and such available for them, S&S doesn't list anything. I'm thinking getting some crank work is a must as well.

Thoughts????? Thanks.......
 
Reply
Old Sep 15, 2017 | 09:01 AM
  #2  
Oldskewl's Avatar
Oldskewl
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2013
Posts: 11,185
Likes: 7,961
From: In my head
Default

FM is a vendor here and they have a good rep. The 107 has been out for a year and there are a lot of companies in the middle of engineering and testing.

S&S should have something avail within a few months. A complete crate motor... Not sure anyone has developed one yet, at least I haven't seen one.
Jims builds hot rods but nothing on their website either.
 
Reply
Old Sep 15, 2017 | 09:41 AM
  #3  
Steve Cole's Avatar
Steve Cole
HD EFI Guru
15 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
Joined: Jan 2008
Posts: 4,477
Likes: 4,752
Default

It all depends on what your after. We have already taken a 107 and changed it to a 120 with Bore, stroke, compression, cams, heads, throttle body and more. All of this has been out there running for about 5000 miles now, with no issue other than transmission fluid transfer. So what are you after?
 
Reply
Old Sep 15, 2017 | 10:06 AM
  #4  
Blue Tick's Avatar
Blue Tick
Thread Starter
|
Road Master
Joined: Jul 2015
Posts: 821
Likes: 54
From: Tomball, Tx.
Default

Originally Posted by Steve Cole
It all depends on what your after. We have already taken a 107 and changed it to a 120 with Bore, stroke, compression, cams, heads, throttle body and more. All of this has been out there running for about 5000 miles now, with no issue other than transmission fluid transfer. So what are you after?
Thanks Steve......I'm not looking for a dragster. I'd like triple digits numbers on both sides of the line. The stage 2 my bike came with, to me lacks, maybe due to it being HD parts. The 447 cam isn't impressive as what they hype it as. Can you send me some details on what y'all have done? Is the HD crank an issue to be concerned with?
 
Reply
Old Sep 15, 2017 | 10:42 AM
  #5  
Oldskewl's Avatar
Oldskewl
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Jul 2013
Posts: 11,185
Likes: 7,961
From: In my head
Default

Originally Posted by Steve Cole
It all depends on what your after. We have already taken a 107 and changed it to a 120 with Bore, stroke, compression, cams, heads, throttle body and more. All of this has been out there running for about 5000 miles now, with no issue other than transmission fluid transfer. So what are you after?
Does your website have a kit and page where I can look at the numbers?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
emerican19
Dyna Glide Models
35
Feb 10, 2014 10:58 AM
nosillyname
Exhaust System Topics
20
Dec 13, 2010 08:16 PM
tpburly
Exhaust System Topics
14
Mar 25, 2010 09:40 AM
twobanger
Exhaust System Topics
9
May 22, 2008 10:37 AM
Bluzmn59
Softail Models
3
Aug 8, 2007 09:37 AM




All times are GMT -5. The time now is 04:03 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