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-   -   Doing LS Swap - I have no idea what I'm doing! (https://67-72chevytrucks.com/vboard/showthread.php?t=811460)

EagleChief 03-23-2021 01:33 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by notsolo (Post 8897980)
Congrats on getting engine set, frame inside to inside is 33 1/2.....33 5/8....the shape of the after market cross member will cause you some grief....the flared ends don't make it easy....I am close behind you, engine is in but also motor mounts are a bugger....I am using OEM crossmember for the trans, it may need moved, maybe next week...aarrrgh.

Congrats on getting it set in! That's awesome! I'm using original motor mounts as well, and they are a pain in the butt!

I appreciate the measurements. I'll check mine and see what I come up with.

EagleChief 03-24-2021 11:05 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Pulled some measurements last night. It's going to be a tight fit! My frame is showing about 33-1/2" inside-to-inside. I measured the crossmember, and it is 33-1/4" out-to-out of the brackets. Soooo, theoretically, it will fit. I may have to get a hammer and force it in there. I'm probably going to call CJ Pony Parts and see what their info is on the placement of the crossmember. Maybe I'm missing something... there weren't any install instructions that came with it - but, probably shouldn't "have" to be any, either - except for me.

EagleChief 03-29-2021 12:21 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Got my motor mounts in yesterday! Driver's side mount had a bunch of rubber down in the threads. Had to pull the motor mount off the motor, clean it out, and run the bolt through it to make sure it would work. Once I got that done, it mounted right up.

Now, to get time to tackle the crossmember.

notsolo 03-29-2021 01:35 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
HammerTime...good luck, I test fit speed headers...Look good and fit good, working on my own motor mounts, need clearance for stock compressor so far so good. Tight, but fits with some trimming of the plate.

jjzepplin 03-30-2021 07:46 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Check out the transmission crossmember I used in my No Daggum Money build. It was cheap and very well built and fits like it was custom made just for my truck. http://www.67-72chevytrucks.com/vboa...=550804&page=7 IFS is the builder.

EagleChief 03-30-2021 11:38 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by jjzepplin (Post 8901338)
Check out the transmission crossmember I used in my No Daggum Money build. It was cheap and very well built and fits like it was custom made just for my truck. http://www.67-72chevytrucks.com/vboa...=550804&page=7 IFS is the builder.

Looked through some of the pages of your build. Nice job on your stuff! I did see that crossmember before... can't remember why I ended up with something different. I do like that there is plenty of room for exhaust.

Doing a quick search for it, though, I can't get their website to come up. Maybe work settings. :)

bigmoe 03-30-2021 04:39 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
1 Attachment(s)
My partially restored truck came with an aftermarket crossmember from the po but I modified it to allow for better exhaust routing.

jjzepplin 03-30-2021 09:20 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
This one is very close to mine and may be a clone. https://www.ebay.com/itm/Transmissio...cAAOSw-Rle~Enr

EagleChief 03-31-2021 11:07 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by jjzepplin (Post 8901662)
This one is very close to mine and may be a clone. https://www.ebay.com/itm/Transmissio...cAAOSw-Rle~Enr

Thanks for the link! If I can't get the one I have to work, I'll probably go this route.

bigmoe 03-31-2021 11:56 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
The one you have from CJ Pony will likely work. I kinda remember it took some twisting and turning to get mine in. Kinda like getting a couch through a doorway.

EagleChief 04-05-2021 11:06 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Got the crossmember in place. Not bolted in, but in place. :)

It looks like the holes will line up and work, I just have to "flex" the frame a little to get the bolts in place. Ordered a new transmission mount, as I forgot to do that.

jjzepplin 04-06-2021 12:22 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Awesome! got a pic?

notsolo 04-06-2021 07:53 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Also would like to see what you did with your motor mounts.

EagleChief 04-06-2021 08:09 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by jjzepplin (Post 8904423)
Awesome! got a pic?

Quote:

Originally Posted by notsolo (Post 8904478)
Also would like to see what you did with your motor mounts.

I'll try and get some tonight.

EagleChief 04-13-2021 01:17 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
5 Attachment(s)
A few days late, but here we go...

notsolo 04-13-2021 05:30 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Thanks for posting, good to see what others are doing. I'm going to use the OEM A/C compressor, so I need to shift mine back as far as possible...got my computer back from LT1....and almost done reworking harness.

Davidf 04-13-2021 06:23 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Your a bit ahead of me with my swap. Branden has my computer as of today and will start on harness tomorrow. Ordered some parts for the LM7 planned refresh. I decided to go with Hooker Blackheart engine mounts so I don't have to mod anything to keep the low mount compressor.

EagleChief 04-14-2021 10:56 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by notsolo (Post 8907933)
Thanks for posting, good to see what others are doing. I'm going to use the OEM A/C compressor, so I need to shift mine back as far as possible...got my computer back from LT1....and almost done reworking harness.

I think I'll try and put the A/C compressor in to see if it will fit. I found a bracket the other day that is a "low profile" a/c bracket that is supposed to move the compressor in closer to the engine.

https://www.ictbillet.com/ls-truck-l...-7176-lq4.html

Maybe that'll work?

I have an a/c truck, but, I have no idea when it worked last. So, it's not a huge priority to get it going. Would it be nice? Sure. But, in the "older" vehicles I've had, a/c hasn't worked, so I'm used to it. :D

notsolo 04-14-2021 11:03 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
If you have the extra mounting holes in the plate, you might gain some room behind the compressor moving the mount back to the 2nd hole in the frame top.

ls1nova71 04-14-2021 11:08 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by EagleChief (Post 8908302)
I think I'll try and put the A/C compressor in to see if it will fit. I found a bracket the other day that is a "low profile" a/c bracket that is supposed to move the compressor in closer to the engine.

https://www.ictbillet.com/ls-truck-l...-7176-lq4.html

Maybe that'll work?

I have an a/c truck, but, I have no idea when it worked last. So, it's not a huge priority to get it going. Would it be nice? Sure. But, in the "older" vehicles I've had, a/c hasn't worked, so I'm used to it. :D

That link is for an aftermarket Sanden compressor, not the factory one. Also, I don't think with the conversion motor mounts, you will be able to get a compressor in there. Some times you can trim them and make one fit, but the mount really needs to be further back.

EagleChief 04-14-2021 11:21 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Here's another bracket that I saw: https://www.ictbillet.com/ls-engine-...ls1-block.html

It may be another option, I don't know.

EagleChief 04-14-2021 11:26 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by ls1nova71 (Post 8908316)
That link is for an aftermarket Sanden compressor, not the factory one. Also, I don't think with the conversion motor mounts, you will be able to get a compressor in there. Some times you can trim them and make one fit, but the mount really needs to be further back.

I tried to mock up the stock a/c compressor mount when I put the adapter plates on. There was a pretty good chunk of the bracket that I would have had to cut out. I think it would be "doable", but I don't really have the time or "want to" at the moment to trim the bracket. ;)

Davidf 04-14-2021 02:30 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Your solution is here:

https://www.holley.com/blog/post/hoo...y_c10_pickups/

F-body mount (Anchor 3064) bolts directly to LS block in factory location, so no interference with A/C compressor. The stands then move the engine reward to stock location. So, keep low mount compressor, no trimming required. But, may still need to figure out how to mount refrigerant lines...lot's of options to solve that problem which I plan to address when I get to it.

I plan to use the Hooker Blackheart crossmember as well to ensure proper driveline angles.

EagleChief 04-16-2021 10:45 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Got everything bolted up last night! Engine and transmission are now fully bolted in. Now to start figuring out the fuel situation. At my pace, I should have that wrapped up by, say, July? :D

notsolo 04-16-2021 05:28 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Forward progress...Good...I'm right behind you, probably August - September.... Need to get my mounts complete...I have a Boyd tank and in the process of custom -redo-finagle a OEM 2001 fuel pump onto this tank.

EagleChief 05-26-2021 01:41 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Well, time to start getting around to the truck again. Had a slight delay, as Mother's Day and wife's birthday came around - so, new kitchen sink & faucet and some concert tickets kinda set me back a bit.

Anyway, just purchased the sending unit and fuel pump for the Wrangler fuel tank swap. Decided to go that route. I still need to get the tank. After searching on here and reading up on the Wrangler tank swap, I ended up getting the sending unit for a '87 S10 Blazer, an AC Delco #EP381 fuel pump. Will I still need the pressure regulator? From what I can tell, that pump is rated at 60psi and 155lph. And, I'm guessing I'll still want a fuel filter in line, right?

LS short box 05-26-2021 04:48 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
You will need a fuel filter regulator. Most use the C5 Corvette FFR. Get AC Delco or Wix brand.

Pitpig 05-26-2021 05:21 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
If it’s a truck intake, it has a regulator and requires a return line

ls1nova71 05-26-2021 07:18 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by LS short box (Post 8925257)
You will need a fuel filter regulator. Most use the C5 Corvette FFR. Get AC Delco or Wix brand.

Quote:

Originally Posted by Pitpig (Post 8925272)
If it’s a truck intake, it has a regulator and requires a return line

Both of these answers could be correct, but depends on if you have a return or returnless fuel rails. In 2004 they came both ways depending if it was flex fuel or not. I went back through the thread and the only picture of the engine complete you cant see the side of the intake to be able to tell.

EagleChief 05-27-2021 11:09 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
I believe I have a return system. It's a 2003 Flex Fuel engine. I'll grab a couple pics this evening of the intake and post them up.

If it is a return system, then I'll need the Corvette filter/regulator, right? I have the WIX #33737 saved in my spreadsheet as a possible part to get. Would I still need another filter in line either before/after that, since it already has one built in?

gmc684x4 05-27-2021 11:46 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
or you can run the return line
this is why turbo guys like them the pressure regulator is on the fuel rail and will provide extra fuel on boost automatically

ls1nova71 05-27-2021 09:31 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by EagleChief (Post 8925527)
I believe I have a return system. It's a 2003 Flex Fuel engine. I'll grab a couple pics this evening of the intake and post them up.

If it is a return system, then I'll need the Corvette filter/regulator, right? I have the WIX #33737 saved in my spreadsheet as a possible part to get. Would I still need another filter in line either before/after that, since it already has one built in?

If it's a return style rail, meaning it has both a feed and return, then you don't need the Corvette filter/regulator, you will just need a regular (EFI rated) fuel filter in the feed line, then you would have the return run back to the tank.

EdwardSams 05-30-2021 08:37 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Came across the thread and read every post. Congrats on the baby, getting the bolts out, and making progress through all of it.

Following!

Tommyups 05-30-2021 09:19 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
I will be doing the LS swap sometime this summer also, following along here.
Great build so far. What was your main reason for not keeping the in cab tank?
Was it the smell or the sound of the pump that I’ve heard can be very loud.
I think one of the coolest things on these trucks, mine is a 67, is the side fill for the tank. I was hoping to keep this set up but if the pump is that loud, I would seriously reconsider

Davidf 05-30-2021 09:47 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Well, I’m going to do the in cab in tank pump in a couple weeks/month...will report on the noise.

EagleChief 05-31-2021 11:44 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
2 Attachment(s)
A little later than I thought, but, nonetheless... Pics of the intake and fuel rails.

ls1nova71 06-01-2021 02:00 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Thats a returnless rail, so you will need the Corvette filter/regulator.

EagleChief 06-01-2021 11:34 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Quote:

Originally Posted by ls1nova71 (Post 8927262)
Thats a returnless rail, so you will need the Corvette filter/regulator.

Thanks! I'll get one ordered.

And, after looking at that picture... makes me realize, I really need to clean that thing up. Man, it's dirty.

biketopia 06-03-2021 02:45 PM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Spend some time and smooth it out, they look sooo nice when they are smoothed out!

EagleChief 06-14-2021 11:01 AM

Re: Doing LS Swap - I have no idea what I'm doing!
 
Received part of my birthday gifts this past weekend! A new Wrangler gas tank, and the WIX Corvette Filter/Regulator! Woohoo!

Now, I can start fitting up the tank, making any adjustments needed. Then, I can start mounting the parts, running the lines, and hopefully get the fuel system finished up.


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