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Old 08-05-2015, 06:03 PM   #101
Dieselwrencher
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

If I could find a good deal on an inline 6-71, I'd be doing one. I did an 8v-92 in a military truck chassis with a 86 crew cab drw body years ago. I should have kept it. The engine was 550hp silver series with a 10 speed. It rocked!
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1976 K30 CC SWB Build Thread

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Old 08-06-2015, 10:24 AM   #102
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

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Originally Posted by Dieselwrencher View Post
If I could find a good deal on an inline 6-71, I'd be doing one. I did an 8v-92 in a military truck chassis with a 86 crew cab drw body years ago. I should have kept it. The engine was 550hp silver series with a 10 speed. It rocked!
Check out the Detroit Diesel group on Yahoo! https://groups.yahoo.com/neo/groups/DetroitDiesel/info
I have seen a number of DD engines offered at good prices.

I would have liked to have seen your truck. It sounds awesome.
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Old 08-06-2015, 02:27 PM   #103
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

It may still be around. I sold it to a guy in Nebraska. The Lincoln area I think. I saw a video of him pulling it at the Wahoo truck pull years ago, but can't find the vid now.
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Old 08-11-2015, 06:16 PM   #104
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

A few more rainy afternoons and a little more progress...

I have had some time to work on the exhaust since it has rained the last couple of afternoons.

Here's the section from the down pipe to the muffler on the bench:

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Here's the view from the front:

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Here's the view from the rear:

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Here's the view from the driver's side. I knew that I would have to pop up and over the transfer case cross member. I think that it worked out pretty well.

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Note the size of the muffler. It's a MagnaFlow straight through design. It should sound pretty nice...
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Old 08-11-2015, 07:14 PM   #105
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Looks fantastic! The t case looks like it's swaddled in cozy blanket made of extra manly beef!
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Old 08-11-2015, 08:08 PM   #106
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Great work on the exhaust!
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1976 K30 CC SWB Build Thread

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Old 08-30-2015, 07:47 PM   #107
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

I finally spent some time on the old '72. I have been doing everything but working on it for the last couple of weeks.

I have finished the exhaust tubing. Here's the tail pipe on the bench:

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Here's the top view:

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Here's the rear view:

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I need to purchase hangers and fabricate the supports. Then I can call this task done.
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Old 08-31-2015, 09:40 AM   #108
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

That is an awesome, massive pipe. 4"? Keep sending pictures, this is becoming an epic build.

CT
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Old 08-31-2015, 10:16 AM   #109
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

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That is an awesome, massive pipe. 4"? Keep sending pictures, this is becoming an epic build.

CT
Yes, it is 4". The donor truck came from the factory with 4" exhaust so I decided to keep it that way. I'm not planning on any engine modifications to increase the power output, so I need to keep the exhaust restriction low.
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Old 09-01-2015, 12:37 PM   #110
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Way back on post #43 you mentioned the engine stop leaver. Could you show it close up? I assume the lever shuts off the fuel flow.

I don't have a diesel in my '70, but and "Engine Shut Off" leaver just sounds cool!
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Old 09-01-2015, 08:07 PM   #111
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

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Way back on post #43 you mentioned the engine stop leaver. Could you show it close up? I assume the lever shuts off the fuel flow.

I don't have a diesel in my '70, but and "Engine Shut Off" leaver just sounds cool!
Here's a close-up of the engine stop knob. I got it from an Army Surplus dealer.

Name:  Close-up of Engine Stop.jpg
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On the 2 cycle Detroit Diesels, the engine stop allows the rack that connects to the injectors to retract fully, stopping fuel flow at the injectors.
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Old 09-02-2015, 07:33 AM   #112
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Thanks. That looks cool, of course for you it would be functional as well.
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Old 09-02-2015, 09:52 AM   #113
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

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Here's a close-up of the engine stop knob. I got it from an Army Surplus dealer.

Attachment 1442793

On the 2 cycle Detroit Diesels, the engine stop allows the rack that connects to the injectors to retract fully, stopping fuel flow at the injectors.
I put that exact style cable/knob on my 1949 Willys Jeep when I put in a Kubota turbo diesel last year..... It's pretty cool!

BTW....your build is coming along GREAT. Would love to see your truck in person since we are neighbors...almost.
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1949 Willys CJ2A, Kubota Turbo Diesel engine, Warn Overdrive, 11 inch brakes, 12volt, Warn M8000 Winch "Little Green"
1970 Rustoleum Roller Red C20 Custom Camper 454 TH400 "Big Red"
1971 K20 6.2 Turbo Diesel 4x4 4spd Ranger Overdrive "Pumpkin Wagon"
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Last edited by Lemield; 09-02-2015 at 06:40 PM.
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Old 09-02-2015, 11:24 PM   #114
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Nice tail pipe!
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Old 09-03-2015, 06:18 PM   #115
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

I ordered a radiator, exhaust hangers and cruise control. Since the radiator arrived first, I thought I would sit it in the core support and see how it looked.

The radiator is a 2 pass unit from Speedway Motors. It is based on the Chevrolet pattern. I ended up with a 2 pass radiator because the A/C compressor blocks the path from the engine thermostat housing to the driver's side radiator outlet. I couldn't mount the compressor on the passenger side because of the location of the water pump & alternator. That's why I like to mount the engine accessories early...

It is a couple of inches shorter than the OEM radiator (it is the widest one that they make). I priced a custom radiator so I could get the exact dimensions - very $$$ - more than 3X the price of this one.

Here it is on the bench:

Name:  Radiator on the bench.jpg
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Here it is sitting in the core support. The core support has 2 positions for radiator supports and this radiator would work in the narrower position. Unfortunately, the fan would be way off center so I am thinking this is where it will end up.

Here's the front view:

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Here's the side view:

Name:  Radiator right side view.jpg
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It is a gorgeous radiator and I like the look of aluminum; but, I really want to paint it black...
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Old 09-15-2015, 07:51 PM   #116
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Not much happening on the project these days. The aspen leaves are already starting to turn so my time for working outside in comfort is limited.

I did get the opportunity to weld the exhaust hangers on for the back of the truck.

Here's a view of the one attached to the transfer case cross member:

Name:  Exhaust hanger -transfer case crossmember.jpg
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Here's a couple of views of the one at the rear of the muffler. I had to build a bracket for this one:

Name:  Exhaust hanger - rear of muffler.jpg
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Name:  Exhaust hanger - rear of muffler top view.jpg
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I am planning to attach a hanger to the transmission rear support. I haven't been able to start on the rear support because I can't get the plugs that fill the holes for the mounting studs out of the back of the transmission. I'm being patient and working on them gradually since a busted transmission case is a $1000 mistake.

The radiator had to go back - it didn't have any threads in the filler neck for the overflow. I will work on mounting it when the new one arrives.

For now, outside work takes priority...
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Old 09-16-2015, 01:06 AM   #117
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Looking good! Too bad about the radiator. Are you going custom, or going to use something similar?
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Old 09-16-2015, 08:36 AM   #118
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

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Looking good! Too bad about the radiator. Are you going custom, or going to use something similar?
Thanks. I just returned the radiator for a replacement.
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Old 10-22-2015, 07:37 PM   #119
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

We got 4" of wet, sloppy snow today. Woo Hoo, a truck day!

I started work on mounting the new radiator in the core support. The tanks of the new radiator are about 1/2" taller than the original radiator, so I had to modify the bottom mounts so it would look "stock" at least from the top.

Here is the modification for the passenger side tacked in:

Name:  Passenger Side Lower Radiator Mount tacked in.jpg
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Here it is welded:

Name:  Passenger Side Lower Radiator Mount welded.jpg
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I don't know how the guys on TV mount a radiator in 10 minutes. I spent all day and don't have much to show for it but a big smile...
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Old 10-22-2015, 09:32 PM   #120
Dieselwrencher
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Nice work. The guys on TV have the pause button on their side. Haha
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1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1976 K30 CC SWB Build Thread

Tired of spark plugs? Check this out.
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Old 10-23-2015, 11:00 AM   #121
nsulacountry
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Creative and functional. Nice work, even though it took longer than 10 min!

CT
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Old 11-05-2015, 08:27 PM   #122
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Another snow day - I'm starting to be concerned - I'm looking forward to snow days...

I completed the radiator mounts. It looks good in the truck.

Here's a front view:

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Here's a side view:

Name:  Radiator Side View.jpg
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While mounting the radiator, I noticed that there was no drain. Don't radiators always come with drains? Apparently not.

I purchased some 1/4" NPT aluminum bungs from Summit Racing so that I could make my own drain.

Here is the drain bung in position:

Name:  Drain Bung Location.jpg
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There's no turning back now!

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No leaks!

Name:  Radiator Leak Test.jpg
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Job done. Now I need to find some hoses for it. I have tried a couple from the Gates catalog. It looked like they might have worked; but, unfortunately they didn't.
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Old 11-07-2015, 11:41 AM   #123
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Looks great! its always nice to get things like that checked off the list. big ticket items like cooling, fuel, exhaust... the things you have to have to make bad air.

i like the CO2/Ar bottle cover. mine usually has similar fashion sense.
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Old 11-11-2015, 12:44 PM   #124
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

Nice progress!
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Old 11-19-2015, 04:20 PM   #125
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Re: Project Screamer - '72 GMC K2500 + DD 4-53T

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Looks great! its always nice to get things like that checked off the list. big ticket items like cooling, fuel, exhaust... the things you have to have to make bad air.

i like the CO2/Ar bottle cover. mine usually has similar fashion sense.
Yes, he's stylin' in that leather jacket.
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