107" kit
HDF Community Team
Joined: Jun 2006
Posts: 12,776
Likes: 2,607
From: san antonio
Already been said but the Timken bearing was installed in TC88s until the '03 year; also had forged cranks until '04 year.
Outstanding HDF Member
Joined: May 2008
Posts: 2,543
Likes: 19
From: Ashland Ohio
And... the 120 does NOT have an upgraded bearing either. If one is going to spout off facts... gets the facts correct. Or keep your self out of a post. Folks read these things and might take what YOU say as the truth and it is NOT. So STFU and stick with chrome and little blue lights.. That same bearing comes on EVERY engine MOCO sells since 2009, BOTH sides, too.
Last edited by wurk_truk; Oct 24, 2010 at 09:28 AM.
Road Warrior
Joined: Aug 2006
Posts: 1,779
Likes: 71
I would do a 95" in a heartbeat, best bang for your buck hands down. Nobody will leave you in the dust --trust me and great running bang for the buck. Wish I had my old 95' carbed motor its still running like a bear to my bud who I sold it to .....
I am a fan of T-Man Performance. I have seen some really good power come out of his setup's. I am still looking at doing a 95" kit from T-Man. I am looking at the "Stage 2 Street Eliminator Pro-Touring" kit... I think it is just under $2,000. They have a cheaper setup, for around like $1,800. You get heads, cams (Your choice), Wiseco pistons, gaskets, etc... But, you do have to send your cylinders out for machining, I believe. The Stg 2 offers around 110hp / 110tq (estimated). They have a couple dyno sheets posted, so check'em out. Hope this gives you some more options! Let us know what you decide! 
Tourer
Joined: Sep 2008
Posts: 259
Likes: 1
From: Kansas City, MO
I have done everything that everyone is talking about. went from 88" stage 1 to 95" head work compression........ wasnt enough. Recently completed an Axtell 107", bored cases, crank trued, more headwork(2" intake valves, 1.625 ex, milled to acheive 82cc) timken conversion, added a fatcat bbq, andrews 67g cams. Got over 1k miles on it just rode it accross the state. Gonna get it on a dyno soon I hope. By feel, its ALOT faster than my 95" motor, power is addicting, go as big as you can afford the first time around you'll save money and won't be wanting more as soon as if you stayed 95" only. I really should have went to a 117" but didnt feel like spending an extra $1400-2000 on this.
Tourer
Joined: Apr 2010
Posts: 461
Likes: 4
From: Yale, MI
And... the 120 does NOT have an upgraded bearing either. If one is going to spout off facts... gets the facts correct. Or keep your self out of a post. Folks read these things and might take what YOU say as the truth and it is NOT. So STFU and stick with chrome and little blue lights.. That same bearing comes on EVERY engine MOCO sells since 2009, BOTH sides, too.
• Lefty high-performance crankcase output bearing..............But still not a Timken
So STFU 2 BIIIIIaaaach
Last edited by BadBagger08; Oct 25, 2010 at 12:12 AM.
Tourer
Joined: Apr 2010
Posts: 461
Likes: 4
From: Yale, MI
Really you had to have it converted to the timken the way some are talking in here you should have already had one. Why would you pay for something that wasn't needed. Or maybe someone doesn't know there head from their (_}_) and hey that could just be me. I guess
Someone set the record straight.........someone that we can all trust...... Hillside.....Scott?
Last edited by BadBagger08; Oct 25, 2010 at 12:20 AM.
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
Not gonna' take side here, but Timkens were used by the Moco, from back in the Panhead days,(1955-1968, OE # 9029, 1969-up-OE # 9028) 'till 2002.
After that, a large, heavy-duty roller bearing was used, and is common to both pinion and sprocket shaft.
The newer "leftys" look as though that the outer race is coated, and look identical to the non-leftys as far as we see, but nonetheless, we have seen some mighty powerful engines(S&S 116"s kits @ 135/135) run just fine with the OEM roller bearing set-ups.
That's my story, and I'm sticking to it.
Scott
After that, a large, heavy-duty roller bearing was used, and is common to both pinion and sprocket shaft.
The newer "leftys" look as though that the outer race is coated, and look identical to the non-leftys as far as we see, but nonetheless, we have seen some mighty powerful engines(S&S 116"s kits @ 135/135) run just fine with the OEM roller bearing set-ups.
That's my story, and I'm sticking to it.
Scott
Last edited by Hillsidecycle.com; Oct 25, 2010 at 07:51 AM. Reason: bearing info
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
Outstanding HDF Member
Joined: May 2008
Posts: 2,543
Likes: 19
From: Ashland Ohio
And... that literature is hype. Dude. The lefty in the 120r is the same as the one in an 09 or newer bike. Part number the same and when tore apart it's the same. The black one. Was a running change in 09 MY. Your blue light special doesn't have the newer bearing set.
Timkens came stock until, I thought 03, but Scotty says 02... no matter... the OP's bike HAS timken bearing on left side.. Roller bearings came along with cold forged cranks, as opposed to hot forged cranks.
I 100% agree with the roller is good enough.
So, I will be your bitch when you stop screwing up and giving bad info. What's the build on your bike, BTW. I HAVE a timken conversion right now, but next time may leave that alone.
Timkens came stock until, I thought 03, but Scotty says 02... no matter... the OP's bike HAS timken bearing on left side.. Roller bearings came along with cold forged cranks, as opposed to hot forged cranks.
I 100% agree with the roller is good enough.
So, I will be your bitch when you stop screwing up and giving bad info. What's the build on your bike, BTW. I HAVE a timken conversion right now, but next time may leave that alone.
Last edited by wurk_truk; Oct 25, 2010 at 07:34 AM.
Road Warrior
Joined: Jun 2007
Posts: 1,788
Likes: 4
From: Here
Someone set the record straight.........someone that we can all trust...... Hillside.....Scott?