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-   -   My 52 GMC Build (https://67-72chevytrucks.com/vboard/showthread.php?t=648459)

lower50's 12-13-2022 10:17 AM

Re: My 52 GMC Build
 
5 Attachment(s)
A bit of fire wall massaging with a big hammer at the top for turbo clearance and had to cut a bit on drivers side to clear exhaust up pipe but not nearly as much as I thought. Welded up some holes that I'm not using any more as well. Added double layer of insulation to the fire wall and exhaust up pipes and turbo are wrapped. Closest place has 1/4" clearance with 3 layers of insulation plus the lizard skin on the inside, should be good.
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6DoF 12-13-2022 11:18 AM

Re: My 52 GMC Build
 
just enough is all ya need!

but can you work on the exhaust without pulling the engine?

lower50's 12-13-2022 11:22 AM

Re: My 52 GMC Build
 
3 Attachment(s)
Couple more pictures of the Power house Powerstroke install.
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lower50's 12-13-2022 11:24 AM

Re: My 52 GMC Build
 
Quote:

Originally Posted by 6DoF (Post 9154746)
just enough is all ya need!

but can you work on the exhaust without pulling the engine?

I should not have to ever get to the up pipes, but yes I would have to most likely pull turbo as well.

OutlawDrifter 12-13-2022 11:49 AM

Re: My 52 GMC Build
 
Definitely a tight fit!

piratexpress1369a 12-13-2022 08:36 PM

Re: My 52 GMC Build
 
Dam that is close to the firewall...

lower50's 01-10-2023 12:45 AM

Re: My 52 GMC Build
 
5 Attachment(s)
I have had lots going on, so here we go. New exhaust pipes showed up, old motor had 3" new motor will have 4". All the 3" pipe I bought is for the intake pipes. Decided to make a new tail pipe out of the 6" dia 3/16" wall stainless pipe that the old one was made from. I made a tear drop tip. Took around 30hrs to make and the final cut took 45 min, had to go slow and help the blade go strait down.
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Advanced Design 01-10-2023 10:04 AM

Re: My 52 GMC Build
 
Wow, impressive exhaust creation and sculpting….pure art.

dsraven 01-10-2023 11:39 PM

Re: My 52 GMC Build
 
curious, do you plan some sort of heat shield over the exposed area of the pipe? I ask because I was burned badly by an exposed pipe-on a firetruck at work, but still. it's likely gonna get hot and you likely won't wanna babysit it till it cools off.

nice work on fabbing those pipe bends.

lower50's 01-13-2023 12:22 AM

Re: My 52 GMC Build
 
Quote:

Originally Posted by Advanced Design (Post 9165002)
Wow, impressive exhaust creation and sculpting….pure art.

Thank you, I wanted something different than what I had but similar.
Quote:

Originally Posted by dsraven (Post 9165377)
curious, do you plan some sort of heat shield over the exposed area of the pipe? I ask because I was burned badly by an exposed pipe-on a firetruck at work, but still. it's likely gonna get hot and you likely won't wanna babysit it till it cools off.

nice work on fabbing those pipe bends.

Thank you! Well I had the old 6" tip for 8 years and 23,000mi no problems. Diesels do cool down when they idle I'm sure that helps. The way I am doing this one it will run even cooler, but thanks.

lower50's 01-13-2023 12:32 AM

Re: My 52 GMC Build
 
5 Attachment(s)
Then onto cooling, new horizontal aluminum radiator that I modified to go vertical. It was off the shelf from Summit, they are both 4 core the new one is 6" longer and weighs 15lb less. The new fan is 2400cfm/17" and is 500cfm more and 1" bigger than the old one that worked ok. Had to trim the rad support a bit because the pullies are wider on this motor.
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Tempest67 01-13-2023 10:16 AM

Re: My 52 GMC Build
 
you are doing some very good work there Bob,

keep it going,

Advanced Design 01-14-2023 04:56 PM

Re: My 52 GMC Build
 
Yes, impressive work on the radiator!

piratexpress1369a 01-15-2023 03:18 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by lower50's (Post 9166096)
Then onto cooling, new horizontal aluminum radiator that I modified to go vertical. It was off the shelf from Summit, they are both 4 core the new one is 6" longer and weighs 15lb less. The new fan is 2400cfm/17" and is 500cfm more and 1" bigger than the old one that worked ok. Had to trim the rad support a bit because the pullies are wider on this motor.
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Looking good so far..stay at it Bob

lower50's 01-16-2023 06:49 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by Tempest67 (Post 9166191)
you are doing some very good work there Bob,

keep it going,

Thank you
Quote:

Originally Posted by Advanced Design (Post 9166678)
Yes, impressive work on the radiator!

I can not take the credit for the welding I tried using my spool gun=lots of little holes so I had someone reweld it for me.
Quote:

Originally Posted by piratexpress1369a (Post 9167076)
Looking good so far..stay at it Bob

Thanks oh I will

lower50's 01-16-2023 06:59 PM

Re: My 52 GMC Build
 
5 Attachment(s)
So it has taken a ton of time to figure out what wires I need and where they need to go. (I can't find the right pinout for the computer) I started with the entire engine bay from the truck the motor came out of, whittled it down to what is in the 3rd picture then made spaghetti in my truck. I finally have everything hooked up, so the computer seems to be working properly. After I get the motor started I'll take it back out and make it all neat.
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dsraven 01-17-2023 12:06 AM

Re: My 52 GMC Build
 
wiring is fun, isn;t it........

slammed57 01-17-2023 03:41 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by lower50's (Post 9164849)
I have had lots going on, so here we go. New exhaust pipes showed up, old motor had 3" new motor will have 4". All the 3" pipe I bought is for the intake pipes. Decided to make a new tail pipe out of the 6" dia 3/16" wall stainless pipe that the old one was made from. I made a tear drop tip. Took around 30hrs to make and the final cut took 45 min, had to go slow and help the blade go strait down.
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that looks really slick. great work. making a complete exhaust system takes a ton of time. coming along great!

lower50's 01-18-2023 05:05 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by dsraven (Post 9167614)
wiring is fun, isn;t it........

I don't mind it, it would be a lot more fun if I could find the right pinout. But it's in the past now.
Quote:

Originally Posted by slammed57 (Post 9167860)
that looks really slick. great work. making a complete exhaust system takes a ton of time. coming along great!

Thank you! I really like making full exhaust, I'll show it when I build it.

lower50's 01-18-2023 05:16 PM

Re: My 52 GMC Build
 
4 Attachment(s)
Bit of a mish mash of stuff done. New lift pump and filter set up mounted in the rear same spot as the old setup. Then goes to my fuel cooler up to the motor and out through my regulated return system. I have 62psi without motor running, so I am perfect. Started my intake pipes, so far so good. I also got my new Dakota Digital gauges all working and set up, They are really nice to set up.
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lower50's 01-20-2023 06:10 PM

Re: My 52 GMC Build
 
5 Attachment(s)
I could not find a power steering reservoir that would work for me, so I modified an old coolant overflow I had, turned out good. Got my heater core mounted and hooked up, fits in there really nice and doesn't block anything. There is a coolant bypass valve just inside. The 30A electric heater I ran for the past 8 years worked ok but we do our big road trip in the fall and I needed more heat sometimes.
Going to start the motor for the first time tomorrow!!!!
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lower50's 01-25-2023 08:44 AM

Re: My 52 GMC Build
 
1 Attachment(s)
And it ALIVE!! First start was Saturday cranked about 6 seconds then fired. Had a few sensor related issues but I think they are figured out, had it running enough to get some heat in the motor and fill the transmission. Best part is I know I put the motor together right and the wiring is correct. It also sounds GREAT!! FYI don't use dryer vent hose if you plan to goose the throttle. I'll get a vid uploaded soon.
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6DoF 01-25-2023 03:13 PM

Re: My 52 GMC Build
 
heck yeah dude!!!!

piratexpress1369a 01-25-2023 08:25 PM

Re: My 52 GMC Build
 
Lmfao dryer vent ...glad you did it right

Advanced Design 01-25-2023 08:59 PM

Re: My 52 GMC Build
 
Congratulations on the first start! Looking forward to the video.

dsraven 01-26-2023 12:07 AM

Re: My 52 GMC Build
 
thats cool. nothing likr th first start with no real glitches.
I envision fully collapsed dryer vent. hahaha

lower50's 02-07-2023 10:04 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by 6DoF (Post 9171127)
heck yeah dude!!!!

Thanks
Quote:

Originally Posted by piratexpress1369a (Post 9171257)
Lmfao dryer vent ...glad you did it right

It then went into rubber exhaust hose then out the window ;)
Quote:

Originally Posted by Advanced Design (Post 9171275)
Congratulations on the first start! Looking forward to the video.

Thanks it's coming
Quote:

Originally Posted by dsraven (Post 9171376)
thats cool. nothing likr th first start with no real glitches.
I envision fully collapsed dryer vent. hahaha

ya successful. It blew apart when I was revving it.

lower50's 02-07-2023 10:15 PM

Re: My 52 GMC Build
 
5 Attachment(s)
I'm defiantly stepping up my game on this motor swap, it's taking so much time. But it is really turning out good. Stainless intake pipes are done cleaned up how I want them and sanded.
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lower50's 02-07-2023 10:24 PM

Re: My 52 GMC Build
 
4 Attachment(s)
Wiring is all cleaned up for the motor and under the dash, shortened the wires for the computer. I used the heat gun solder butt splices, they are like magic. Then wrapped it in cloth split loom and used fiber tape where needed.
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Advanced Design 02-08-2023 07:38 PM

Re: My 52 GMC Build
 
Great welding and finishing work on the pipes! Harness came out looking good too. Nice!

lower50's 02-08-2023 09:35 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by Advanced Design (Post 9176512)
Great welding and finishing work on the pipes! Harness came out looking good too. Nice!

Thank you Doug

lower50's 02-08-2023 09:41 PM

Re: My 52 GMC Build
 
4 Attachment(s)
The 4" exhaust is done and installed. I'm calling the down pipe my snowmobile exhaust because it looks like it should be on a snowmobile lol. Came out good can't wait to hear it. Had to squish it in a few spots to get some ground clearance and to clear the lower 4link bar. The exit is floating in the 6" tail pipe.
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Tempest67 02-08-2023 09:45 PM

Re: My 52 GMC Build
 
well done, and congratulations.

look forward to seeing it sometime this summer.

looks REALLY good

8man 02-09-2023 09:23 AM

Re: My 52 GMC Build
 
Very nice!

Waiting on that video.

lower50's 02-09-2023 09:21 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by Tempest67 (Post 9176554)
well done, and congratulations.

look forward to seeing it sometime this summer.

looks REALLY good

Thank You Hoping to meet up with you too.
Quote:

Originally Posted by 8man (Post 9176706)
Very nice!

Waiting on that video.

Thanks. It's coming, I'm going to drive it outside Saturday so I can run it longer. I'll get a vid together of everything.

6DoF 02-10-2023 12:03 PM

Re: My 52 GMC Build
 
that is freakin crazy looking!

dsraven 02-10-2023 12:16 PM

Re: My 52 GMC Build
 
you're right, the down pipe does look like a sled exhaust, haha. nise to see the flex joints too.
that is gonna be a tight underhood when done. gonna be good to see those pics with the fenders on etc.
keep plugging away and the list will be done so you can drive it, and make a new list of tidy up stuff, like we all do.

youngrodder 02-10-2023 12:21 PM

Re: My 52 GMC Build
 
Congrats on the first fire. It is always nice to check that big one off the lists.
Looking good...

Marc

lower50's 02-10-2023 06:48 PM

Re: My 52 GMC Build
 
Quote:

Originally Posted by 6DoF (Post 9177196)
that is freakin crazy looking!

Ya I'm liking how it is all looking.
Quote:

Originally Posted by dsraven (Post 9177200)
you're right, the down pipe does look like a sled exhaust, haha. nise to see the flex joints too.
that is gonna be a tight underhood when done. gonna be good to see those pics with the fenders on etc.
keep plugging away and the list will be done so you can drive it, and make a new list of tidy up stuff, like we all do.

Ya and I thought the old 7.3L was a tight fit lol. Thanks ya I make lots of lists.
Quote:

Originally Posted by youngrodder (Post 9177202)
Congrats on the first fire. It is always nice to check that big one off the lists.
Looking good...

Marc

Thank you Marc

piratexpress1369a 02-12-2023 05:41 PM

Re: My 52 GMC Build
 
Awesome work bob


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