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.

91 camaro ls3 swap

Old 11-01-2011, 11:26 AM
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Re: 91 camaro ls3 swap

After all of that work, now your selling your Camaro?
Old 11-01-2011, 06:48 PM
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Re: 91 camaro ls3 swap

pm sent very interested in buying your roller.
Old 08-10-2014, 10:52 AM
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Re: 91 camaro ls3 swap

Get a Direct Port LS3 Hidden NX System, it looks like a stock LS3 intake w/ all plumbing hidden inside, then put the bottle in the spare tire compartment and you will be 100% stealth!!!! But do upgrade those rod bolts!!!! ARP!!
Old 08-10-2014, 10:54 AM
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Re: 91 camaro ls3 swap

Click on this link or copy and paste it!! :-)

http://www.lsxtv.com/news/nitrous-ex...edge-you-need/
Old 08-10-2014, 11:21 AM
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Re: 91 camaro ls3 swap

just finished entire thread..... SELLING/Sold it after all that??? WTF... oh well hope you get some $$ back!!
Old 02-21-2019, 08:20 AM
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Re: 91 camaro ls3 swap

Hey did you use the electronic gas pedal ? If so how did you get it to fit !!! Help appreciated I can’t figure it out
Old 02-21-2019, 10:15 AM
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Re: 91 camaro ls3 swap

Originally Posted by timmyboy
A few more pics..... The one is how i drilled and tapped the water pump for the steam tube. Turned out pretty clean.

i know this a a dumb question but what’s the steam port for and where does it run or how do you hook it up ?
Old 05-09-2019, 12:58 AM
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Re: 91 camaro ls3 swap

Hello everyone

I’m new to this whole swapping engines thing, I have a 91 with a 5.7. i’m interested in doing an LS3 swap, I live in Valencia which is in Southern California. i’m looking for companies are mechanics who have done this plenty of times to save myself the headache and money of trying to figure this out as a first timer. Recommendations would be greatly appreciate it as I’m excited to get this project going.
Old 05-09-2019, 11:45 AM
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Re: 91 camaro ls3 swap

Originally Posted by Jovonny
Hello everyone

I’m new to this whole swapping engines thing, I have a 91 with a 5.7. i’m interested in doing an LS3 swap, I live in Valencia which is in Southern California. i’m looking for companies are mechanics who have done this plenty of times to save myself the headache and money of trying to figure this out as a first timer. Recommendations would be greatly appreciate it as I’m excited to get this project going.
Welcome to the boards! You won't be disappointed with the LS3, that's for sure. I'd recommend searching around here and seeing if you can find someone who's done something similar to what your goal is. There's been so many different swaps from mild to wild, plus tons of people will be willing to help/advise. Maybe check out the regional boards for more local knowledge, but there's got to be plenty of places willing/able to do what you want near you.

You may want to start your own thread, so as not to take over someone else's.

But seriously, welcome and search, search, search
Old 05-13-2019, 09:20 PM
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Re: 91 camaro ls3 swap

Welcome. Easiest/headache free LS3 swap is probably the e-rod, electronic pedal and all.
Old 11-07-2019, 08:41 AM
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Re: 91 camaro ls3 swap

Originally Posted by Ace
I have the same accessories and they clear the stock k-member.

What doesn't work is the A/C.

The old corvette accessories - 97-04 were the problem ones
So, would a good functional and clean look be C6 accessories and the 4th gen A/C? I’m planning on a truck LQ9 swap w/862 heads and figure I better do A/C or the wife will never ride with me and I’ll also need the defrost for when it rains. I’ve read where the truck A/C is not compatible (not sure why). Thanks!
Old 11-07-2019, 01:40 PM
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Re: 91 camaro ls3 swap

The model of accessories have to match the AC style as the offsets are different.

The C6 accessories work very well & the entire kit is still reasonable proiced.
The C6 AC works if you cut the frame for clearance.

You can also get the highmount AC, such as offered by LSX Concepts to prevent frame mods.


Old 11-08-2019, 03:58 AM
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Re: 91 camaro ls3 swap

Thanks for the info. This is going to be a budget build to an extent (from which I can control) and am wondering if the more reasonable approach is all 4th gen brackets/accessories from a junkyard, but maybe relocating the A/C compressor so that I don’t have to mod the K member.

I’m new to the forums and haven’t done a lot of searching. It’s prob already discussed somewhere but figured I’d ask back to an active member who’s in the know. Thanks!
Old 06-29-2020, 12:51 AM
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Re: 91 camaro ls3 swap

Originally Posted by timmyboy
As for the wiring harness i am using the gm conversion swap harness. The wheel wells are undercoated with 3m undercoating. For prep work i used grease and wax remover with a scotch brite pad. I know i will be satisfied with the cam. Im hoping to be about 480 rwhp with motor alone. I also have a 100 hp shot on top of that. Ill attach some pictures of the car for you guys. -Tim
nice one bro I'm thinking on installing an ls3 ano on my Camaro I may have some questions on the future 😁
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