Conversions & Swaps LSX Engines in Non-LSX Vehicles
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5.3 s475 foxbody, with A/C and holley efi.

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Old 04-14-2014, 03:31 PM
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Have a few updates!
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It's starting to look serious.
Old 04-15-2014, 12:21 PM
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very nice
Old 04-15-2014, 10:14 PM
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You having that exhaust come out in front of the front tire?
Old 04-15-2014, 10:22 PM
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Originally Posted by FrossB
You having that exhaust come out in front of the front tire?
Yes sir for the cut out. It will still have a full exhaust that dumps before the axle for for quiet cruising with the ac on.
Old 04-15-2014, 11:28 PM
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Haha i like your style. I plan on running mine out the fender just like that except no cutout. Probably just a small muffler or something if I can make it work.
Old 04-16-2014, 08:34 PM
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when you start wiring up the ac please explain in detail for dummys like me LOL. I am going to try to adapt a ford mod motor compressor to the LS since it mounts in the same spot and almost the same way.
Old 04-16-2014, 09:09 PM
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Originally Posted by sick_46
when you start wiring up the ac please explain in detail for dummys like me LOL. I am going to try to adapt a ford mod motor compressor to the LS since it mounts in the same spot and almost the same way.
It's pretty easy, and I see no reason to run a ford compressor. There's one wire that comes off of of the ac/heat panel in the car that runs to the compressor. Then in between is a low and high pressure switch. It's like that on most cars, pretty easy really.

All compressor operate the same, just 2 wire to energize the magnetic clutch.
Old 04-16-2014, 10:08 PM
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Plus one on the S475 !!!! Great piece for the buck; I ran a 1.32ar 475 a few years ago on a 69 four door Imp. Your fox will move out real well.....
Old 04-19-2014, 06:01 PM
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More progress was had!
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It's a tight squeeze, but he got the 4in to where it can be ran out the back of the car. It clears with the suspension all the way compressed, with the wheel locked all the way to the left.
Old 04-22-2014, 09:36 PM
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Looks good. I just pulled my modified on3 kit off and I'm building a kit out of truck manifolds and s475. Your buddy does nice work
Old 04-22-2014, 10:01 PM
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Originally Posted by 1bad03snake
Looks good. I just pulled my modified on3 kit off and I'm building a kit out of truck manifolds and s475. Your buddy does nice work
You talkin about the on3 kit for swapped foxes?

Yeah he does, he builds chassis and headers for a living. I asked him if he wanted to take this on and he laughed and said "I thought you were gonna give me something hard." He's never built a kit, he's just taking my directions and running with it.
Old 04-23-2014, 03:10 PM
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Great build! Thanks for the pics!

Are you going to Fab a 4" electric cutout or some kind of bolt in piece?
Old 04-23-2014, 03:30 PM
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Originally Posted by Qwkss
Great build! Thanks for the pics!

Are you going to Fab a 4" electric cutout or some kind of bolt in piece?
Your welcome!

QTP Makes a 4" electric cut out. I posted a pic of it a page or two back.
Old 04-23-2014, 09:05 PM
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Default on3 kit

Originally Posted by Busa_rob
You talkin about the on3 kit for swapped foxes?

gonna give me something hard." He's never built a kit, he's just taking my directions and running with it.
I modified my own on3 ford kit to fit my 6.0l. The only down side was turbo size. It sat up pretty high so a tc78 was the largest I could fit
Old 04-24-2014, 01:43 AM
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you're making this look way too easy, lol. i missed it what is that ac comp. off of? condenser? accumulator looks like mustang. are you gonna wire a fast idle(or whatever its called) into the computer to keep the motor from stumbling/dying when ac is flipped on at idle? any pics info you can post during the process is greatly appreciated.

this may help you keep costs down plumbing the ac lines I went to get lines made for, mustang with 5.0, but i wanted accumulator in front of the front wheel and relocation of lines that run by pass side header. i had no lines at all. got quoted a ridiculous price everywhere i went. then a small shop told me if i had the end fitting peices he'd do it for x amount. bought used lines and had the small shop set um up for a fraction of prices i had originally been quoted.
Old 04-24-2014, 01:56 AM
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also the dudes doing a great job on the hotparts, but make sure he angles the wastegate entrance properly, i bring it up cause this is a commom mistake, even by highly skilled fabricators
Old 04-24-2014, 02:28 AM
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Originally Posted by Tanus
you're making this look way too easy, lol. i missed it what is that ac comp. off of? condenser? accumulator looks like mustang. are you gonna wire a fast idle(or whatever its called) into the computer to keep the motor from stumbling/dying when ac is flipped on at idle? any pics info you can post during the process is greatly appreciated.

this may help you keep costs down plumbing the ac lines I went to get lines made for, mustang with 5.0, but i wanted accumulator in front of the front wheel and relocation of lines that run by pass side header. i had no lines at all. got quoted a ridiculous price everywhere i went. then a small shop told me if i had the end fitting peices he'd do it for x amount. bought used lines and had the small shop set um up for a fraction of prices i had originally been quoted.
I'm using an f-body compressor, and everything else is ford.

I'm running holly efi, and it has an ac input that's definable as to how much the idle will rise, turn on a fan, and all that good stuff.

I'm using a place that specializes in hot rod and custom car ac installs, so that's where I'll have the lines made. They just did some on an ls2 swapped 65 coupe and came out awesome. I think I may go with braided lines. Gonna cost a **** ton I'm sure, but it will look nice and will be ran cleanly.
Old 04-24-2014, 02:33 AM
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Originally Posted by Tanus
also the dudes doing a great job on the hotparts, but make sure he angles the wastegate entrance properly, i bring it up cause this is a commom mistake, even by highly skilled fabricators
I'm very keen on that as well. That's why I stressed the pipes going in to the flange to be straight. If you look on the last page you can see there's about 8" of straight going in to the flange, that's where they will go at a 45* angle or closer, then routes back in to the dump. Gonna be tricky with twin gates but he's always well planned out, and listens to my input.
Old 04-28-2014, 12:11 PM
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Originally Posted by Busa_rob
Your welcome!

QTP Makes a 4" electric cut out. I posted a pic of it a page or two back.

Thats going to sound awesome!

I looked online and could not find that IC, can you tell me where you got it?
Old 04-28-2014, 03:36 PM
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Originally Posted by Qwkss
Thats going to sound awesome!

I looked online and could not find that IC, can you tell me where you got it?
It's a treadstone performance TR1245. Rated for 1000hp. Their site isn't working right now, but that's where I ordered it from. Think it was like $450. I've seen a few guys run them on here with good results. They seem to keep iats in check through the 1/4.


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