Conversions & Swaps LSX Engines in Non-LSX Vehicles
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LTX --> LSX Conversion Sticky

Old 08-01-2011, 12:25 AM
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gotta call jason at tdp, thats his quote to the guy i sold mine to... :doh:
Old 08-01-2011, 05:37 PM
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Im getting ready to do a 5.3 (budget) swap in my 96 ta and I was wondering if theres anyway I can make the 5.3 accessories and intake fit?
Old 08-01-2011, 05:45 PM
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Originally Posted by ltxta
Im getting ready to do a 5.3 (budget) swap in my 96 ta and I was wondering if theres anyway I can make the 5.3 accessories and intake fit?
No, the packaging is too spread out to fit in the car. You need a car intake and accessories.
Old 08-01-2011, 06:11 PM
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alright thanks for the info. Do you think the intake would fit under a cowl or ram air hood?
Old 08-01-2011, 06:16 PM
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Some of the guys have gotten a truck Intake under a Cowl Hood..
Old 08-01-2011, 08:31 PM
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I'd still go for a car intake though.
Old 08-02-2011, 02:58 PM
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Will a rack from another vehicle fit, or a cheap manual one? I'll probably just get one from an ls1, but figured I'd see if there were any other options.
Old 08-02-2011, 06:04 PM
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Has anyone done a smog legal swap? Or figured out how to wire in the Air pump since it's in the headlight harness?
Old 08-18-2011, 10:37 PM
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It's been done..wiring stuff in isnt that hard..if you come across the diagram and need a hand let me kno..
Old 11-12-2011, 10:43 PM
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Tach INFO



I just swapped a 2000 LS1 into a 1997 WS6 and the tach was not working correctly, it was reading close at idle but nothing above that.


I had to change the "High" and "Low" Tach Resolution settings in the tune from the stock ls1 settings of "6" to the value of "3". HP tuners software


Hope this helps anyone else looking for this answer.
Old 11-13-2011, 12:17 AM
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That is correct..the 99-02 Tach reads like a 4 cyl.
Old 11-14-2011, 10:37 PM
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Well I guess this got taken out of the sticky list..good info here..

Old 11-15-2011, 04:04 PM
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Originally Posted by the_merv
Well I guess this got taken out of the sticky list..good info here..

Why would something like this get UN-stickied?
Old 11-15-2011, 04:30 PM
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I guess it got put back up....

Last edited by the_merv; 02-09-2013 at 07:16 PM.
Old 11-15-2011, 05:37 PM
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Originally Posted by the_merv
That is correct..the 99-02 Tach reads like a 4 cyl.
How do the 98 tachs read?
Old 11-15-2011, 05:41 PM
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Analog..V8 is an 8-pulse, the V6 is a 6-pulse.

With HP Tuners you set the Tach Resolution to 3 cause with the 24X LS1 Cranks it triggers it every 3rd one..24/3 = 8..that's why it works with analog V8 gauges. I've gotten some V6 Gauges to work correctly by setting it to 4.
Old 02-04-2012, 03:14 PM
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how much are you guys having to slot the trans crossmemeber? I did the ls1/4l60e swap into a 97 and im working on that trans crossmember now. It seems like there would be no meat left on the crossmember by the time i slot the holes enough
Old 02-04-2012, 11:31 PM
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From what I understand you are supposed to use the LT1 transmission crossmember even though you are swapping to an LS1 transmission.
Old 02-05-2012, 07:56 AM
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Yep, thats what i got.
Old 02-05-2012, 09:50 AM
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Here is a pic of mine

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