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.

I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?

Thread Tools
 
Search this Thread
 
Old 12-04-2010, 11:41 PM
  #1  
Junior Member
Thread Starter
 
otecnick88GTA's Avatar
 
Join Date: Dec 2007
Location: Audubon, N.J.
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 Trans Am GTA
Engine: 350 .060 over carbed
Transmission: TH-700R4 w/2800 stall
Axle/Gears: 9 bolt w/3.27s till it breaks
I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?

like i said im sure its been asked a million times but i cant seem to find it, so will 4th gen lts fit a 3rd gen? im sure we have the normal concerns but where are the contact points? are they cross member issues? steering shaft issues? firewall issues? any thing like that

only reason i ask is becasue i have a tublar kmember about to go in the car as the ls swap starts, i was gonna use stock manifolds but my buddy is giving me a set of lts off his old 01 ss, of course i would rather use the lts

any help would be great, thanks fellas
Old 12-05-2010, 12:04 AM
  #2  
Supreme Member

iTrader: (4)
 
RubberDucky's Avatar
 
Join Date: Mar 2009
Location: Florida
Posts: 2,035
Received 28 Likes on 16 Posts
Car: 1989 Camaro RS
Engine: LH6
Transmission: T56
Axle/Gears: 3.42 Auburn Posi
Re: I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?

IIRC the 4th gen LTs won't fit, I think because of the tubes hitting the firewall, but somebody with more knowledge should jump in. Hawks makes LTs for LS1 swapped thirdgens, but they'll cost you a pretty penny.
Old 12-05-2010, 09:01 AM
  #3  
Supreme Member

iTrader: (4)
 
ghettocruiser's Avatar
 
Join Date: Sep 2002
Location: PA
Posts: 3,685
Received 10 Likes on 9 Posts
Car: 86 Trans AM
Engine: LS1 (not stock...)
Transmission: Built T56
Axle/Gears: Strange 12-bolt w/ 3.73
Re: I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?

Ah...LongTubes. I was sitting here trying to think what motor an lts was haha. LTs from a 4th gen will not work at all.

On a 4th gen, they flare out to the sides, and would run right into the front subframes. Its not even close really. You'd have to hack them apart and rebuild them, and its just not worth it. At point you'd be way ahead just buying a header kit and going at it.

Go with Hawks or stock manifolds if you just want to buy, install, and enjoy.

J.
Old 12-05-2010, 04:19 PM
  #4  
Junior Member
Thread Starter
 
otecnick88GTA's Avatar
 
Join Date: Dec 2007
Location: Audubon, N.J.
Posts: 66
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 Trans Am GTA
Engine: 350 .060 over carbed
Transmission: TH-700R4 w/2800 stall
Axle/Gears: 9 bolt w/3.27s till it breaks
Re: I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?

haha yea i ment long tubes, see thats what i was tring to figure out, i have thrid gen lts but dont have fourth gens to compare too

who makes the build your own kit for the ls engine?
Old 12-05-2010, 05:01 PM
  #5  
Supreme Member

iTrader: (9)
 
88 350 tpi formula's Avatar
 
Join Date: Dec 1999
Location: WI,USA
Posts: 3,532
Received 18 Likes on 17 Posts
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
Re: I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?

not too sure on the whole kit. but I know summit used to sell header pipe kits and then you buy the flanges for your setup (sbf,bbf,sbc,bbc, ls1 and so on)
Old 12-06-2010, 07:46 AM
  #6  
Supreme Member
iTrader: (4)
 
1ADan's Avatar
 
Join Date: Mar 2009
Location: Pepperell, MA
Posts: 3,079
Likes: 0
Received 3 Likes on 3 Posts
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?

people have modified 3rd gen sbc long tubes to work on the lsx motors, but the 4th gen stuff's a no go (other than shorties)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Frozer!!!
Camaros for Sale
35
01-19-2024 04:55 PM
1992rs/ss
Engine/Drivetrain/Suspension Parts for Sale
16
01-28-2016 09:58 PM
redmaroz
LTX and LSX
7
08-16-2015 11:40 PM
Eagle223usa
Brakes
4
08-14-2015 09:24 AM
THABADGUY
Brakes
2
08-11-2015 03:43 AM



Quick Reply: I figure its been asked but i cant find it, 4th gen lts in a 3rd gen?



All times are GMT -5. The time now is 01:22 PM.