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Old 07-27-2016, 10:31 PM   #1
Dieselwrencher
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Re: 4x4 1971 K20 build

Look on diesel forums, there is plenty of info. Dieselplace is a good one for Duramax info. Get an airdog or FASS and you don't have to worry about where to put a stock gm fuel filter housing.
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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
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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Old 07-27-2016, 10:49 PM   #2
Rednwhitec20
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Re: 4x4 1971 K20 build

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Originally Posted by Dieselwrencher View Post
Look on diesel forums, there is plenty of info. Dieselplace is a good one for Duramax info. Get an airdog or FASS and you don't have to worry about where to put a stock gm fuel filter housing.
I have looked around about swaps but don't know many people with them done, especially a 4x4 in a factory 67-72 frame. Maybe I'm not searching the correct things. I planned on getting one but I guess I'd be money ahead if I went ahead and bought one now. I bought an LMC under bed tank, will the non-efi sending unit work or what do you recommend? Thanks in advance
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-08-2016, 11:30 PM   #3
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Re: 4x4 1971 K20 build

What i figured out is rather than post directly from my phone i email myself pictures, then when i am at home on my PC i open the email attachment and save that picture or pictures, i do this instead of plugging the phone in to the computer and transferring files from the phone to computer, when you send the email you have to pick the file size, when i had a Samsung i always picked medium, with my Iphone i can use Large, this makes a great picture to upload to the forum, i can upload all 5 pictures to one post.
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Swamp Rat build thread :
http://67-72chevytrucks.com/vboard/s...d.php?t=595019

72 3/4T 4X4
4" BDS Lift
33" BFG's
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Old 08-09-2016, 10:25 PM   #4
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Re: 4x4 1971 K20 build

Fitting in some parts and getting the pedal fitted in. Hoping to get the power plant in by the end of this week. We will see.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-09-2016, 10:27 PM   #5
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Re: 4x4 1971 K20 build

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Originally Posted by swamp rat View Post
What i figured out is rather than post directly from my phone i email myself pictures, then when i am at home on my PC i open the email attachment and save that picture or pictures, i do this instead of plugging the phone in to the computer and transferring files from the phone to computer, when you send the email you have to pick the file size, when i had a Samsung i always picked medium, with my Iphone i can use Large, this makes a great picture to upload to the forum, i can upload all 5 pictures to one post.
Thanks i did the last with my computer and will try to do the rest that way when I have multiple photos to upload.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-18-2016, 12:42 AM   #6
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Re: 4x4 1971 K20 build

Getting ready to button up the body work.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-18-2016, 07:03 PM   #7
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Re: 4x4 1971 K20 build

It's coming along very nice and fast! Great work!
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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
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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Old 08-18-2016, 07:16 PM   #8
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Re: 4x4 1971 K20 build

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Originally Posted by Dieselwrencher View Post
It's coming along very nice and fast! Great work!
Thank you sir! Seems like it can never be fast enough!
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-21-2016, 01:40 AM   #9
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Re: 4x4 1971 K20 build

Today we got the engine in. After 1 broken cherry picker. The wheel broke off but it just scratched my oil pan. Everything clears pretty good from the heater to the newer style brake booster. The oil filter sits perfect right in the frame rail. It looks as is my factory style trans tunnel will work. We notched a little to get it to fit better and to clear a sensor that's behind the go fast pedal. In the pictures all of the weight is on the frame. We just have to get holes drilled and everything lined up. I'm going to just use a lift pump with filters so I can do away with the factory style and then I will bypass my FICM module as the fuel only acts as a cooler for it. I will get better pictures and give more information when it's all bolted up and in place. He also started mocking up the coolers around the core support. I am using the factory ones and will get pictures when I go over Monday to finish the motor up, hopefully.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-21-2016, 01:44 AM   #10
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Re: 4x4 1971 K20 build

Not too many adjustments need to be made to the floor. Just towards the back where the transfer case bolts up needs to lift a little. Plan on cutting two lines straight back and lifting it up like a tab and adding side piece triangles to lift it up.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-22-2016, 02:25 PM   #11
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Re: 4x4 1971 K20 build

Going to try and finish drilling and bolting it up today.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-18-2016, 11:41 PM   #12
Dieselwrencher
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Re: 4x4 1971 K20 build

You're making leaps and bounds compared to how long it took me to get my truck into primer.
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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
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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Old 08-22-2016, 09:07 AM   #13
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Re: 4x4 1971 K20 build

Good deal! It's looking great!
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Ryan
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
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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Old 08-22-2016, 10:46 AM   #14
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Re: 4x4 1971 K20 build

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Originally Posted by Dieselwrencher View Post
Good deal! It's looking great!

Thank you!
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-26-2016, 02:32 PM   #15
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Re: 4x4 1971 K20 build

Looks like it fits in there nicely.
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Old 08-26-2016, 06:19 PM   #16
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Re: 4x4 1971 K20 build

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Looks like it fits in there nicely.
It sure does! Just looks like a big block on steroids.

Going over tomorrow to get my starter in. Going to take pictures and put them in my post on how I did it. What would you guys recommend on doing with my steering gears? It is a little leaky. Go redhead? It's going to have to turn a lot more tire and a lot more weight.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-28-2016, 04:30 PM   #17
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Re: 4x4 1971 K20 build

So problems... Intercooler nor the radiator will fit. They are just too tall. Anyone have a recommendation on a radiator I should use?
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-28-2016, 04:34 PM   #18
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Re: 4x4 1971 K20 build

I would consider tilting it back if too tall. Fab some brackets to hold the top. Otherwise, Summit and Jegs brand radiators work great and less expensive than most. I have one on my truck and fit perfect. Just measure your support. Had mine for 6-7 years and no issues on a BBC.
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462ci, forged crank, H-beam rods, 10.5-1 KB forged pistons, Dart Iron Eagle 308cc, Straub Cam, Comp Cams chrome moly full rollers, Weiand Team G, Prosystems 950, TH400/3500 Dalenzie stall, Currie 9+ Detroit Locker w/31spline axles.3.5/6in drop. My Build.
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Old 08-28-2016, 07:21 PM   #19
Rednwhitec20
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Re: 4x4 1971 K20 build

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Originally Posted by ripdog28 View Post
I would consider tilting it back if too tall. Fab some brackets to hold the top. Otherwise, Summit and Jegs brand radiators work great and less expensive than most. I have one on my truck and fit perfect. Just measure your support. Had mine for 6-7 years and no issues on a BBC.
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If I tried tilting it back it would be in my fan. It's about 2.5" too tall. I will look, thanks!
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 08-26-2016, 03:23 PM   #20
Dieselwrencher
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Re: 4x4 1971 K20 build

Very nice!
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Ryan
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
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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Old 09-19-2016, 05:36 PM   #21
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Re: 4x4 1971 K20 build

I've seen that orange one at Des Moines Good guys last year I think.
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Ryan
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
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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Old 09-19-2016, 06:00 PM   #22
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Re: 4x4 1971 K20 build

Another 6bt swap
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 09-19-2016, 06:04 PM   #23
Dieselwrencher
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Re: 4x4 1971 K20 build

Have anymore of that truck? That is awesome!
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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
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project


Tired of spark plugs? Check this out.
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Old 09-19-2016, 06:42 PM   #24
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Re: 4x4 1971 K20 build

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Originally Posted by Dieselwrencher View Post
Have anymore of that truck? That is awesome!
Just ones other people took, my stupid self forgot to take some.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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Old 09-19-2016, 06:43 PM   #25
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Re: 4x4 1971 K20 build

My favorite there was this sweet LS9 swapped GMC.
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1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
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