Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

UUC LSx Lightweight Flywheel question

Thread Tools
 
Search this Thread
 
Old Dec 20, 2015 | 11:38 AM
  #1  
Bmv8's Avatar
Thread Starter
Teching In
 
Joined: Apr 2014
Posts: 4
Likes: 0
Default UUC LSx Lightweight Flywheel question

Hello All
I know I have seen posts previusly where forum members have used the UUC flywheel so I am hoping someone out there may be able to give me some info I have not been able to get from UUC.
I purchased a UUC LSx flywheel privately that had never been installed for my BMW LSx swap. When I tried to mate my T56 pressure plate to it the alignment pins are different. So I reached out to UUC with the hand scribed part number on the flywheel. First leeter is hard to make out but in corispondence with UUC it appears to be GMU-5557. So far they have not been able to provide any other info.
What I am hoping is someone out there can tell me the application (and maybe even the install guide) it was designed for so I can get the correct parts.
thank you

Last edited by Bmv8; Dec 24, 2015 at 09:18 AM.
Reply
Old Dec 21, 2015 | 01:52 AM
  #2  
Jontall's Avatar
TECH Fanatic
15 Year Member
 
Joined: Sep 2005
Posts: 1,584
Likes: 23
From: NYC
Default

My question is: why would you use a BMW flywheel on a LSX conversion? Also, you don't give any information about what you are doing... Is it a LS1, LS2, LS3, LS7? What vehicle did the motor/transmission come out of? What vehicle is it going in?
Reply
Old Dec 24, 2015 | 09:17 AM
  #3  
Bmv8's Avatar
Thread Starter
Teching In
 
Joined: Apr 2014
Posts: 4
Likes: 0
Default

My bad. The LS engine is an L33 from 06 Chev pickup. The trans is an F-body T56. And it is all being swapped into an 89 BMW 325
The flywheel is actually a LS unit that UUC made in limited quantities. Unfortunately they are having a hard time finding any information on it. All I know right now is the crank bolts are same but the alignment pins are not the same as the F-body pressure plate I have. So I was hoping someone out there might recognize the part number so I know what pressure plate and clutch to buy.
Thanks everyone
Reply




All times are GMT -5. The time now is 05:17 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE