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.

The LSX Swap Build Thread

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Old 08-03-2019, 07:01 PM
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Re: The LSX Swap Build Thread

Do they send pictures to you or do you just drop in on them periodically? Definitely good to see what's going on!
Old 08-04-2019, 08:40 AM
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Re: The LSX Swap Build Thread

The shop I’m using is very concerned about the work they do. They want to make sure I’m happy with the fitting of body parts and keep me updated of the progress. I stop by about once a week and snap pics. This shop is primarily a Corvette restoration business but they also do other cars on occasion. The owner wants his customers to be happy when their car is completed. Expensive but worth it.
Old 08-06-2019, 03:38 PM
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Re: The LSX Swap Build Thread



Car on rotisserie at body shop. Owner liked my car so much he bought a new rotisserie. LOL.
Old 08-06-2019, 03:42 PM
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Re: The LSX Swap Build Thread


Old 08-06-2019, 05:51 PM
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Re: The LSX Swap Build Thread

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Car on rotisserie for wet sandblasting to remove all paint and road crud,top,bottom and inside.

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Old 08-09-2019, 09:11 PM
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Re: The LSX Swap Build Thread

this is dream level building here,you are doing the stuff we "little guys" only dream of while driving ratty turd gens.
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Old 08-09-2019, 09:53 PM
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Re: The LSX Swap Build Thread

Your day will come. Takes years of hard work to get what you want. Be here before you know it.
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Old 08-09-2019, 10:15 PM
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Re: The LSX Swap Build Thread

yeah,that's what i thought......"when your choices are limited, sometimes stupid things are the only choice"

i know this very well,don't ask me how i know(lol)

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Old 08-09-2019, 10:18 PM
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Re: The LSX Swap Build Thread

my apologies on that dramatic rant,please disregard

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Old 08-10-2019, 08:20 AM
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Re: The LSX Swap Build Thread

No apologies necessary. I am sure there are more out there than just me who can completely empathize with your story...

M
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Old 08-10-2019, 08:56 AM
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Old 08-10-2019, 03:29 PM
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Re: The LSX Swap Build Thread

thanks,sometimes when you are down you think you are the only one.
don't get me wrong im proud of what i do have and i still have the things that really matter
(place to live,wife,kids,job etc)
but i couldn't build a $100,000 car unless the "build" time-frame was closely related to infinity

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Old 08-10-2019, 07:07 PM
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Re: The LSX Swap Build Thread

Originally Posted by 1986BANDIT
...unless the "build" time-frame was closely related to infinity
Well said.
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Old 08-10-2019, 09:04 PM
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Re: The LSX Swap Build Thread

Originally Posted by 1986BANDIT
this is dream level building here,you are doing the stuff we "little guys" only dream of while driving ratty turd gens.
You can make your car pretty nice, you just have to do it yourself. There are gobs of good examples on this forum of DIY builds. jworks has a good DIY thread going on right now. And yours could be the next build thread!

Let's give this thread back to its owner though.

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Old 08-11-2019, 12:07 AM
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Re: The LSX Swap Build Thread

yep,i was riveted and didn't see any new content.is there some?
Old 08-11-2019, 01:30 PM
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Re: The LSX Swap Build Thread

Sandblasting to be done tomorrow or Tuesday. I'll post pics of process. Want to be there and observe how its done.
Old 08-11-2019, 03:03 PM
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Re: The LSX Swap Build Thread

Measure for fitment with the accessory drive before ordering. I was looking at some of the mid mount units like in your original engine picture and the clearance from engine to radiator is tight on those. Factory accessories stick more to the sides of the engine and don't need as much space between the engine and radiator to install them. Nice looking build so far though.
Old 08-12-2019, 05:54 AM
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Re: The LSX Swap Build Thread

Wow - A complete tear down and rebuild! That's cool that you are the original owner of a 1985 car. And your neighbor learned that your toys can still be taken away if you misbehave. Yikes!


1986Bandit - since you're in Canada, I hope this windfall applies to you:
https://www.foxnews.com/world/chase-...dian-customers

If not, don't give up on a dream build. A good LSX swap has a good background story.
Old 08-12-2019, 02:04 PM
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Re: The LSX Swap Build Thread

Originally Posted by BADMAN
Point of story is he had the entire inside floorboards and rear area “insulated “ with foil backed butyl based roof seam insulation. Kind of crap you get at Lowe’s/Home Depot. Have spent the last week with a vibrating scraper and then wiping residual tar with lacquer thinner. PITA. I know some folks advocate this as poor mans Dynomat. Dont. Just don’t!
I'm curious to know how long the material had been in place, how it held up and why you hold such a poor opinion of it.
Old 08-12-2019, 02:26 PM
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Re: The LSX Swap Build Thread

Originally Posted by Tibo
I'm curious to know how long the material had been in place, how it held up and why you hold such a poor opinion of it.
I haven't used this stuff specifically, but I know that most people use Dynamat, and the like, improperly. There are much better ways to achieve the desired results. Using these products with 100% coverage is a waste of money since they only dampen vibration and do not block sound transmission. You only need 25-40% coverage at most for vibration, then you cover with mass like MLV (mass loaded vinyl) or lead with a foam decoupling layer in between. I also used FatMat extreme and it melted in areas of the floor where the exhaust is in my Suburban, the foil layer may block heat but it is just going to hold it between the sheet metal and the foil. The Foil in that location is not really helping control heat into the vehicle from outside, so 100% coverage is just a waste for that purpose too.
Old 08-12-2019, 02:52 PM
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Re: The LSX Swap Build Thread

The Home Depot/ Lowe’s foil backed butyl stuff works but there is a downside. When I removed the carpet it had that "hot roof" smell. Also bottom of carpet had the same odor. Car has been sitting in a garage for around 8 years. I'm sure if it had been driven more the odor would have been coming through the carpet. It is also very heavy. I probably removed 60-70 pounds of that crap. It’s not the same type of rubber that DynaMat uses. With the heat here in Texas it adds up to a future problem. And I know a little bit about butyl and synthetic rubber. I worked for Goodyear Chemical for 35 years.
BTW I just left the folks who manufacture Lizard Skin. I’m going to do my floorboards and wheel wells with it. Lighter, and easier to apply considering car is stripped down to the bare body. Not cheap but lasts longer. Long term use DynaMat can start coming loose, particularly on doors. Seen it on several restored cars getting a redo.
Now back to the car. Getting wet sandblasted. Messy but does a great job. Kudos to the guy doing the work. Hot as Hell this week here. Brutal. Car is only partially done. Will be put in primer after this to prevent rusting.Some pics.




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Old 08-14-2019, 04:25 PM
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Re: The LSX Swap Build Thread





Car in paint and prep area. Sanding and priming panels. Lizard Skin for heat and sound insulation going on interior area and wheel wells once sanding and blocking done.
Old 08-14-2019, 06:59 PM
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Re: The LSX Swap Build Thread

looking good,are you going to outdo the dse camaro?(detroit speed)its a beast,watch a quick rundown here

Old 08-14-2019, 07:25 PM
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Re: The LSX Swap Build Thread

Originally Posted by 1986BANDIT
looking good,are you going to outdo the dse camaro?(detroit speed)its a beast,watch a quick rundown here

https://www.youtube.com/watch?v=Ld4YeXy3W4I
No, not going to compete with that car. I am stealing a few ideas from it though. That’s a pure race car. Mines for the street.
Old 08-14-2019, 07:29 PM
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Re: The LSX Swap Build Thread

but god i love it,its street-able but kind of excessive isn't it?

the front tires are wider than most rear tires,this car is the ultimate third gen.
did you ever see the third gen camaro troy trepannier was working on(f-87) ?
shame it was never completed as far as i know,it definitely had a few good
ideas and some questionable ones,lol



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Old 08-19-2019, 03:23 PM
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Re: The LSX Swap Build Thread

Originally Posted by Beater79TA
Measure for fitment with the accessory drive before ordering. I was looking at some of the mid mount units like in your original engine picture and the clearance from engine to radiator is tight on those. Factory accessories stick more to the sides of the engine and don't need as much space between the engine and radiator to install them. Nice looking build so far though.
Measurements already done. All good.
Old 08-19-2019, 03:48 PM
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Re: The LSX Swap Build Thread



Prepping inside area for Lizard Skin application.
Old 08-19-2019, 03:52 PM
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Re: The LSX Swap Build Thread


More inside pics.

Old 08-19-2019, 04:14 PM
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Re: The LSX Swap Build Thread

From a cosmetic standpoint, what are you planning on doing with the rear seat area? It looks like the down bars on the cage into the hatch area will prevent the seat backs from being installed without notching them around the cage bar. I've got bars in a similar spot on my 92 and had to leave the seat backs out.
Old 08-19-2019, 05:39 PM
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Re: The LSX Swap Build Thread

Originally Posted by Beater79TA
From a cosmetic standpoint, what are you planning on doing with the rear seat area? It looks like the down bars on the cage into the hatch area will prevent the seat backs from being installed without notching them around the cage bar. I've got bars in a similar spot on my 92 and had to leave the seat backs out.
There will be no rear seating. Haven't finalized plans for that area yet. Working on various ideas currently.
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Old 08-19-2019, 07:11 PM
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Re: The LSX Swap Build Thread

have you started applying the lizard skin and do you have any previous experience with this product?



my friend just did his fox and has half a pail left over,i told him i would gladly take it but i would love to hear someone else's opinion and personal view of it
Old 08-19-2019, 08:08 PM
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Re: The LSX Swap Build Thread

I don’t paint. Body shop is doing it. Have had several friends use it in their cars. Works great. You have to apply heat insulation and sound suppression separately. Has to dry between coats. Some say put heat coating on one side of firewall/underbody and sound coating on other, creating a “sandwich “ per say. Suggest check out their website.
Old 08-20-2019, 10:49 AM
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Re: The LSX Swap Build Thread

What impresses me is the pace of the work the paint shop is doing. Typically cars disappear into "paint prison" and aren't seen again for months. Or longer.
Old 08-20-2019, 01:54 PM
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Re: The LSX Swap Build Thread

They mostly work on Corvettes. And they wait on parts for months sometimes. So they are able to knock mine out because it’s just a bare body. There will be some idle time as they work on other cars, but the owner gave me a timeframe of 3 months to completion. And I added the Lizard Skin application recently. So a little added wait. But it will be worth it.
Old 08-20-2019, 07:54 PM
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Re: The LSX Swap Build Thread

Originally Posted by BADMAN
They mostly work on Corvettes. And they wait on parts for months sometimes. So they are able to knock mine out because it’s just a bare body. There will be some idle time as they work on other cars, but the owner gave me a timeframe of 3 months to completion. And I added the Lizard Skin application recently. So a little added wait. But it will be worth it.
And the owner gets some quick cash flow from my project, versus the older Vettes which can be in his shop for several months. LOL
Old 08-22-2019, 11:56 AM
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Re: The LSX Swap Build Thread

LizardSkin product applied to interior area and wheelwells. Now for more priming and sanding.



Old 08-22-2019, 02:33 PM
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Re: The LSX Swap Build Thread



More priming and sanding.
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Old 08-23-2019, 12:17 PM
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Re: The LSX Swap Build Thread

Cool build. Fast progress
Old 08-27-2019, 06:05 PM
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Re: The LSX Swap Build Thread





Lizard Skin application on inside floor, firewall, and wheel wells.
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Old 08-27-2019, 06:11 PM
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Re: The LSX Swap Build Thread







Rust Defender primer plus blue blocking paint. After final sanding on to paint.

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Old 09-03-2019, 07:11 PM
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Re: The LSX Swap Build Thread

Anyone have any idea what the paint code or the name of the OEM underbody color is? Looking to do the underbody similar to the DSE Iroc. The exterior color will be black as is my rearend, suspension, and other parts. Want a contrast underneath with all the moving parts. Also will listen to reasonable opinions on underbody paint and pics if you have them. Final paint on my build coming soon.
Old 09-03-2019, 07:21 PM
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Re: The LSX Swap Build Thread

I think DSE painted under body white so that it is easy to inspect for cracks and damage.

I prefer dark colors (flat black) on parts so it all just blends into the shadows. Easy to touch up with a rattle can from the hardware store. Personally, I think it looks extremely silly when people have random bright red or whatever colors on control arms and such.

I'm sure "rattle can" wasn't exactly what you were aiming for. But honestly, that's reality when you drive something long enough.
Old 09-03-2019, 07:29 PM
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Re: The LSX Swap Build Thread

I did the underside myself including sandblasting, etch primer and top coat. It's far from the build quality that you're seeking however these pictures might give you an idea.
Keep in mind that this was all rattle can and matching the existing bottom-side colour was largely a guess on my part. I can't recall the specific shade of grey but I might be able to go through my pile of spray bombs if someone else doesn't give you better info.
FWIW here are a couple of build pictures. (circa 2010)




Old 09-05-2019, 09:28 PM
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Re: The LSX Swap Build Thread

Found a grey that will work. Car getting sprayed next week.
Old 09-11-2019, 04:40 PM
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Re: The LSX Swap Build Thread


Final prep almost done on bottom. Then on to paint. Color Jet Black on exterior and frame rails. Medium Gray on underbody. Paint scheme similar to DSE Iroc-Z.
Old 09-11-2019, 06:16 PM
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Re: The LSX Swap Build Thread

Originally Posted by QwkTrip
I think DSE painted under body white so that it is easy to inspect for cracks and damage.

I prefer dark colors (flat black) on parts so it all just blends into the shadows. Easy to touch up with a rattle can from the hardware store. Personally, I think it looks extremely silly when people have random bright red or whatever colors on control arms and such.

I'm sure "rattle can" wasn't exactly what you were aiming for. But honestly, that's reality when you drive something long enough.
All suspension components are black in color. I’m not a fan of the red stuff either. The underbody of the car will be a medium grey. Will “highlight “ the underbody components and make it easier to see when working underneath. Paint soon.
Old 09-11-2019, 06:17 PM
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Re: The LSX Swap Build Thread

Looks good!��
Old 09-11-2019, 06:18 PM
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Re: The LSX Swap Build Thread

Originally Posted by skinny z
I did the underside myself including sandblasting, etch primer and top coat. It's far from the build quality that you're seeking however these pictures might give you an idea.
Keep in mind that this was all rattle can and matching the existing bottom-side colour was largely a guess on my part. I can't recall the specific shade of grey but I might be able to go through my pile of spray bombs if someone else doesn't give you better info.
FWIW here are a couple of build pictures. (circa 2010)




Looks good!!
Old 09-20-2019, 02:11 PM
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Re: The LSX Swap Build Thread




Bottom sprayed with grey. Masking off areas for black accents. Paint similar to DSE IrocZ. Won’t be much longer.
Old 09-21-2019, 08:32 PM
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Re: The LSX Swap Build Thread



Bottom almost complete.


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