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-   -   LT's install, easier from top or bottom? (https://ls1tech.com/forums/lt1-lt4-modifications/943706-lts-install-easier-top-bottom.html)

BLK,97,T/A,M-6 Jun 25, 2008 01:54 AM

LT's install, easier from top or bottom?
 
Pretty straight foreward, but keep in mind I will have the tranny out to replace the clutch as well.

96LT1355Z28 Jun 25, 2008 02:16 AM

I did mine from the bottom, it was easy. I have a tubular k-member and the car was on a rack. If you have a rack I'd say the bottom. If you'll be laying on your back it would probably be easier from the top. Having the tranny out will help!

chavez885 Jun 25, 2008 02:18 AM

bottom

BLK,97,T/A,M-6 Jun 25, 2008 02:22 AM

ok.. 3 more questions

1) what size header bolts, 1" or 3/4"?

2) what length o2 extensions?

3) where can I get o2 sims?

96LT1355Z28 Jun 25, 2008 03:25 AM

I think my bolts are 1"

My Pacesetters came with the driver side extension wires, I solidered em I didn't need one on the passenger side (I know I can't spell, it's early!)

I got my O2 sims from Summit, but when I had the PCM programmed I think they removed them, I havent tried to take em off to see if it does anything.

luckyou03 Jun 25, 2008 03:26 AM

my pacesetters went in through the bottom

TXFORMULA Jun 25, 2008 04:50 AM

i think with a 97 you need the longer o2 sensor extensions

RickyMartinZ28 Jun 25, 2008 07:56 AM

Bottom, and re-install the tranny first... You can't install the transmission with headers in the way...

-Rick

tonskiguy Jun 25, 2008 09:04 AM

Done it both ways, the good thing about the bottom is being able to install the headers and tranny on the engine first. I bought 1" header bolts and ended up shortening most of them.

96SCTA Jun 25, 2008 09:32 AM

For me the botom worked best, I had the motor fully assembled with tranny + k fram and headers and just drop the car onto it using a engine hoist to raise lower the front of the car. I also had my tires ands suspenisn on it so i just rolled it under the car. 4 k member bots and 4 tranny bolts and shes in. If u do it this way u can do it all ur self with no help.

SS RRR Jun 25, 2008 02:16 PM


Originally Posted by BLK,97,T/A,M-6 (Post 9621937)
ok.. 3 more questions

1) what size header bolts, 1" or 3/4"?

Either/or will work. I've used 3/4" bolts since 2000.
The not sure on the length of the extendors. I think mine are 14", but can't remember. The sponsors on this site may know more about your two other questions.

LTBANDIT Jun 25, 2008 04:16 PM


Originally Posted by tonskiguy (Post 9622666)
Done it both ways, the good thing about the bottom is being able to install the headers and tranny on the engine first. I bought 1" header bolts and ended up shortening most of them.

i think your talking about the engine... he is just talking about headers...

19mike84 Jun 25, 2008 04:20 PM

i did mine from the top in my driveway. i had to cut a little off the bell housing and take off my valve covers and spark plugs but it wasnt bad

ulakovic22 Jun 25, 2008 04:20 PM

Bottom was easier for me.

1" bolts

24" extensions

Can tune out the rears or Casper may still have some, not sure what happened with the whole lawsuit thing.

litch2004 Jun 25, 2008 04:24 PM

i just finished putting in my hooker super comps and there was no way possible to put the in through the top. Mine went in only through the bottom. The only side i had a problem with was the drivers side because it hit on everything it could have hit.

NHRAMAN Jun 25, 2008 04:28 PM

From The Bum Area..................:rotflmao:

96LT1Camaro Jun 25, 2008 05:09 PM

yo dont fuck around putting it in through the top it is doable but hard. i put mine in through the top but it took so long and a couple windsheilds

fbodyracing1 Jun 25, 2008 05:15 PM

I put the driver side from the bottom and the pasnger side frome the top and i had to pull each bolt out of the motor mount and jack the motor up and they just fit

tonskiguy Jun 25, 2008 10:24 PM


Originally Posted by LTBANDIT (Post 9625118)
i think your talking about the engine... he is just talking about headers...

Oh, you're right, I'd have to say from the bottom.

BLK,97,T/A,M-6 Jun 26, 2008 01:05 AM

ok I ordered more stuff, please tell me if I missed anything.

1) 2 ac delco (pre cat) O2's
2) 24" extentions
3) new polly motor mounts
4) 2 odb2 O2 sims
5) ngk tr55's
6) I'll probably make my own block off's
7) stage 8 locking 3/4" bolts

Anything else?


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