LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

ls motor mount adaptor

Thread Tools
 
Search this Thread
 
Old Jan 16, 2011 | 10:20 AM
  #1  
pajama sam's Avatar
Thread Starter
Member
iTrader: (5)
 
Joined: Feb 2009
Posts: 102
Likes: 0
From: Mt. Prospect IL
ls motor mount adaptor

Im swapping a 5.3 into my 85 transam, Im doing this on the cheap. Im looking for the adaptors to put the ls to my trans. I want to keep everything behind the engine stock.
So im looking for mounts that will put the ls motor to the stock trans.

Sorry im having a hard time explaining this.

Any help would be awesome

Thanks tim
Reply
Old Jan 16, 2011 | 10:52 AM
  #2  
88 350 tpi formula's Avatar
Supreme Member
25 Year Member
Liked
Loved
iTrader: (9)
 
Joined: Dec 1999
Posts: 3,544
Likes: 19
From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
Re: ls motor mount adaptor

use a crank spacer if using pre-ls1 trans and the spohn engine mount
Reply
Old Jan 16, 2011 | 10:56 AM
  #3  
pajama sam's Avatar
Thread Starter
Member
iTrader: (5)
 
Joined: Feb 2009
Posts: 102
Likes: 0
From: Mt. Prospect IL
Re: ls motor mount adaptor

Originally Posted by 88 350 tpi formula
use a crank spacer if using pre-ls1 trans and the spohn engine mount
I was thinking these engine mounts. will these work?
http://www.summitracing.com/parts/TRD-4592/

Also never heard of a crank spacer. Where can i get one? and which one? Links would great

Thanks again
Reply
Old Jan 16, 2011 | 02:36 PM
  #4  
ZONES89RS's Avatar
Supreme Member
iTrader: (2)
 
Joined: Dec 2006
Posts: 5,538
Likes: 0
From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: ls motor mount adaptor

Cannot find them on Ebay right now, but i used the 30$ swap plated in my 89 and they were straight up like what i s in that link you posted, it works, but the 1 inch set back i just got for my 86 TA will be better, they were about 45$, so be patient and watch Ebay for them to pop up unless you want to spend 55$ or so. But they work great.
Reply
Old Jan 16, 2011 | 02:37 PM
  #5  
88 350 tpi formula's Avatar
Supreme Member
25 Year Member
Liked
Loved
iTrader: (9)
 
Joined: Dec 1999
Posts: 3,544
Likes: 19
From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
Re: ls motor mount adaptor

idk if those will work, I know the old style wont the spohn ones do fit. the spacer is from gm and i think a few other company's use them too. gm used the spacer on 4l80e and the 6.0 on 2000? and newer trucks honestly this stuff is asked every 2 weeks


http://www.enginebuildermag.com/Arti...ankshafts.aspx
Reply
Old Jan 16, 2011 | 02:57 PM
  #6  
pajama sam's Avatar
Thread Starter
Member
iTrader: (5)
 
Joined: Feb 2009
Posts: 102
Likes: 0
From: Mt. Prospect IL
Re: ls motor mount adaptor

Originally Posted by ZONES89RS
Cannot find them on Ebay right now, but i used the 30$ swap plated in my 89 and they were straight up like what i s in that link you posted, it works, but the 1 inch set back i just got for my 86 TA will be better, they were about 45$, so be patient and watch Ebay for them to pop up unless you want to spend 55$ or so. But they work great.
I need the parts fast so ill be buying it whereever i can get it. u think the 1 inch set back will be better?
which one should i get if i want to use my stock trans crossmember?
Reply
Old Jan 16, 2011 | 04:44 PM
  #7  
ZONES89RS's Avatar
Supreme Member
iTrader: (2)
 
Joined: Dec 2006
Posts: 5,538
Likes: 0
From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: ls motor mount adaptor

The 1 inch set backs are supposed to retain the actual stock trans location. So that would be your best bet, you doing EFI or carbed?

If carbed, my budget thread i did the other day can give insight on new and used:

https://www.thirdgen.org/forums/ltx-...t-ls-swap.html
Reply
Old Jan 16, 2011 | 05:57 PM
  #8  
pajama sam's Avatar
Thread Starter
Member
iTrader: (5)
 
Joined: Feb 2009
Posts: 102
Likes: 0
From: Mt. Prospect IL
Re: ls motor mount adaptor

Originally Posted by ZONES89RS
The 1 inch set backs are supposed to retain the actual stock trans location. So that would be your best bet, you doing EFI or carbed?

If carbed, my budget thread i did the other day can give insight on new and used:

https://www.thirdgen.org/forums/ltx-...t-ls-swap.html
Awesome ill buy those 1 inch set back ones. Yea i am doing carbed. ill check out that thread.
Reply
Old Jan 16, 2011 | 10:32 PM
  #9  
thunder85's Avatar
Member
iTrader: (1)
 
Joined: Sep 2003
Posts: 455
Likes: 0
Car: 1988 firebird trans am GTA
Engine: 5.7L w/hsr
Transmission: 700r4
Axle/Gears: posi 3.23
Re: ls motor mount adaptor

here's exactly what you are looking for to hook up your transmission: http://advanceadapters.com/product/3741/712500A.html
Reply
Old Jan 17, 2011 | 01:14 AM
  #10  
Thridgen60's Avatar
Member
iTrader: (2)
 
Joined: Nov 2008
Posts: 169
Likes: 0
From: Moline, IL
Car: 86 Camaro
Engine: 6.0L LQ4
Transmission: 4L80E
Axle/Gears: 9 inch, 3.50
Re: ls motor mount adaptor

These are the mounts you want and are some of the best priced one around. The 1" setback mounts will keep your transmission very close to the stock location.

http://carshop.carshopinc.com/produc.../98457/CSP2370


The bellhousing of your stock transmission will bolt right up to your 5.3, but it requires a change for the torque converter to bolt up correctly. The truck motors came with two different flexplates, one is flat and one is curved (i think most 5.3's came with the curved flexplate). If you have the curved one you can just buy this hughes adapter and press in the rear of the crank. You will also have to egg out the torque converter bolt holes in the flexplate to make it work with the old style converter.

http://www.jegs.com/i/Hughes%20Perfo...0002/-1?CT=999
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
E Rod
LTX and LSX
5
Aug 28, 2015 05:17 AM
Wesly_66
Exhaust
11
Aug 26, 2015 09:55 PM
Elliswon
LTX and LSX
4
Aug 10, 2015 12:33 PM
NBrehm
Engine/Drivetrain/Suspension Parts for Sale
0
Aug 5, 2015 07:57 PM




All times are GMT -5. The time now is 05:02 AM.