The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > Diesel Conversions

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-31-2017, 10:17 PM   #26
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Quote:
Originally Posted by Dieselwrencher View Post
I'd see if you can find some one to weld them first. How far from Pittsburgh Kansas are you? There's a board member that lives there that could probably weld these for you. What kind of tank are you using? A draw straw is a lot cheaper and can be obtained a lot of places. I use 1/2" ones in all my builds most times.
About an hour and a half. School starts the 21st of august and I will be in fort Scott (about 30 minutes north of Pitt.) If he doesn't get it welded soon enough I'll look into it! I think I'm going to cut the 3/8" line and then drill it to 1/2" and run some stainless 1/2" in its place.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 09-04-2017, 08:54 PM   #27
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

I've been busy lately with moving down to college and such. I managed to sell my 3/4 ton axles, so now it's time to rebuild the Dana 60 front. Now I can have 4wd too. Intercooler pipes are welded but I failed to take a picture.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 09-04-2017, 11:33 PM   #28
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

I've been busy lately with moving down to college and such. I managed to sell my 3/4 ton axles, so now it's time to rebuild the Dana 60 front. Now I can have 4wd too. Intercooler pipes are welded but I failed to take a picture.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 09-22-2017, 12:37 AM   #29
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Well my truck missed the goal of the carshow. But I took the C20, and still had a good time. 2,123 cars were registered in the show, there were some pretty cool cars and trucks there. Anyways, my axle rebuild is slowly coming along since I am only able to work on it on weekends. My Fass lift pump is mounted and he's doing some plumbing for the fuel. A/C is in the works too.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 09-22-2017, 06:37 PM   #30
Dieselwrencher
6>8 Plugless........
 
Dieselwrencher's Avatar
 
Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,139
Re: 1971 k20 badmax

I'd say A/C is a must before you start driving it. Other wise you'll be driving it with no AC like me.
__________________
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.
Dieselwrencher is offline   Reply With Quote
Old 09-22-2017, 06:58 PM   #31
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Haha. Yeah, I'd probably almost always drive the Camaro since it has pretty good A/C that I'm hooked on now.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 10-02-2017, 08:44 AM   #32
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

The Dana 60 front has been blown apart and cleaned. We are now painting parts of it and it’s about ready to go back together. The AC has been hung in the dash and the holes have been cut!
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 10-15-2017, 09:13 PM   #33
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Rollin on one tons
Attached Images
 
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 10-16-2017, 09:17 AM   #34
Dieselwrencher
6>8 Plugless........
 
Dieselwrencher's Avatar
 
Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,139
Re: 1971 k20 badmax

Very nice!
__________________
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.
Dieselwrencher is offline   Reply With Quote
Old 12-02-2017, 03:27 PM   #35
rickcdewitt
Registered User
 
rickcdewitt's Avatar
 
Join Date: Jan 2011
Location: Northern CA
Posts: 163
Re: 1971 k20 badmax

Nice to see a duramax k20 build here! Ive got a couple questions if you don't mind. First was the duramax rear axle wider than the d44 that was in the front? And how little lift could you run with a duramax oil pan? I have a duramax parts truck id love to use to power my 70 k20
__________________
1970 k20 6.0l/nv4500/np205/14bff in progress
build linkhttp://67-72chevytrucks.com/vboard/s...d.php?t=677014
rickcdewitt is offline   Reply With Quote
Old 12-02-2017, 04:13 PM   #36
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Quote:
Originally Posted by rickcdewitt View Post
Nice to see a duramax k20 build here! Ive got a couple questions if you don't mind. First was the duramax rear axle wider than the d44 that was in the front? And how little lift could you run with a duramax oil pan? I have a duramax parts truck id love to use to power my 70 k20
I don't believe it was wider, looked pretty close to the same width. I never measured or anything. It all depends on how you do it. If you put the engine in your 70 frame, you will have to build your own motor mounts and possibly a crossmember. Also to keep it a 4x4 you will HAVE to use a 78-79 ford dana 44 or 60 (60 Recommended) to clear that offset oil pan. My crossmember as you can see is over kill. It can probably be done with 3-4 inches of lift, but there are a lot of factors that can change that. The pumpkin is large, so, how high you set the engine in the frame, how large of a crossmember is used will all determine. You will also probably have to trim the frame rails for the manifolds. The manifolds sit really low on a duramax. Or you could possibly body swap it? Hope that helps
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 12-02-2017, 04:37 PM   #37
rickcdewitt
Registered User
 
rickcdewitt's Avatar
 
Join Date: Jan 2011
Location: Northern CA
Posts: 163
Re: 1971 k20 badmax

Yeah it's always a cascade effect when you change anything major like that.I'm guessing you positioned it so the manifolds were an inch or so above the frame rails and moved it forward enough for the heads and turbo to clear the firewall?
Also no body lift right?
__________________
1970 k20 6.0l/nv4500/np205/14bff in progress
build linkhttp://67-72chevytrucks.com/vboard/s...d.php?t=677014
rickcdewitt is offline   Reply With Quote
Old 12-02-2017, 05:05 PM   #38
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Quote:
Originally Posted by rickcdewitt View Post
Yeah it's always a cascade effect when you change anything major like that.I'm guessing you positioned it so the manifolds were an inch or so above the frame rails and moved it forward enough for the heads and turbo to clear the firewall?
Also no body lift right?
Manifolds aren’t all the way above the rail, not possible without a body lift or maybe a cowl hood. There is some clearance in the firewall, but not a lot. No body lift, I hate body lifts.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 02-18-2018, 12:26 PM   #39
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Sorry my thread has been dead lately. Been super busy between work and school. The wiring is pretty much done, and we tried to start it. We have been running into some problems with it throwing codes, so once that is figured out maybe she'll start. First we threw a cam pos code, and now we are fighting a throttle pos sensor code, which seems correct as we have raw fuel dripping out of the exhaust. It is also possible that I have an injector leaking off.. I also threw an 8 inch lift on for clearance.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 02-22-2018, 11:21 PM   #40
Dieselwrencher
6>8 Plugless........
 
Dieselwrencher's Avatar
 
Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,139
Re: 1971 k20 badmax

It's always something. Good luck with it and keep at it!
__________________
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.
Dieselwrencher is offline   Reply With Quote
Old 02-23-2018, 09:20 AM   #41
19684x4
Registered User
 
Join Date: Oct 2012
Location: Topeka Kansas
Posts: 17
Re: 1971 k20 badmax

what are you using for gauges?
19684x4 is offline   Reply With Quote
Old 03-14-2019, 09:05 PM   #42
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

HUGE UPDATE!!
I completely forgot I had started this thread and will be checking the site more often now! Now about the truck. I’ve put about 500 miles on it and I’m still working out the bugs. I’m on my 3rd PS box because of leaks and had to switch it to 2wd for crossover steering. It did great on my 75 Mile one way trip to school. I finally found the exact wheel and tire setup that I’ve always wanted and this truck looks mean, even in primer. I’ve also been messing with the trans cooler trying to get it in the proper location for air.
Attached Images
    
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 03-14-2019, 09:09 PM   #43
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Quote:
Originally Posted by 19684x4 View Post
what are you using for gauges?
I am using Dakota Digital VHX gauges with I believe is their BIM. The gauges are nice and can show a lot of info, they run off the OBDII
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 03-19-2019, 01:06 PM   #44
Vintage Windmills
Vintage 4x4s
 
Vintage Windmills's Avatar
 
Join Date: Sep 2010
Location: Prior Lake, MN
Posts: 4,305
Re: 1971 k20 badmax

Very cool project! I'm not normally a fan of the lifted with big tire look but somehow you found a sweet spot of the right amount of rim, tire and stance and it looks really good! Aggressive yet tasteful if that makes sense
__________________

67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades)
67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore )
86 CHV K30 502 th400, apple red NEW
71 CHV K20 350 SM465, ochre (saved work truck)
71 CHV K20 292 SM465, white, tach, PTO, (future project)
72 CHV K20 350 350th, medium blue (project stocker)
01 CHV K2500hd crew, indigo blue

^3 dont run and the others don't see winter either
'86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649
'71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642
'72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6
Vintage Windmills is offline   Reply With Quote
Old 03-19-2019, 01:46 PM   #45
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Quote:
Originally Posted by Vintage Windmills View Post
Very cool project! I'm not normally a fan of the lifted with big tire look but somehow you found a sweet spot of the right amount of rim, tire and stance and it looks really good! Aggressive yet tasteful if that makes sense
I originally didn’t plan on it being so tall but the crossmember for the duramax was large so it kinda forced me to for clearance. I appreciate the kind words. I absolutely love the set up myself.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 03-21-2019, 09:43 PM   #46
Dieselwrencher
6>8 Plugless........
 
Dieselwrencher's Avatar
 
Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,139
Re: 1971 k20 badmax

Very awesome that you've got it together and have been working out the bugs! The wheels and tires look great on it. Have any under hood pics of it?
__________________
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.
Dieselwrencher is offline   Reply With Quote
Old 03-22-2019, 08:46 PM   #47
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Quote:
Originally Posted by Dieselwrencher View Post
Very awesome that you've got it together and have been working out the bugs! The wheels and tires look great on it. Have any under hood pics of it?
Thank you very much! And no new pictures of the bay, but I need to get some! I believe I have a boost leak on it🤔 but not sure yet.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Old 03-22-2019, 09:27 PM   #48
Rednwhitec20
Registered User
 
Rednwhitec20's Avatar
 
Join Date: Jun 2014
Location: Princeton Kansas
Posts: 235
Re: 1971 k20 badmax

Quote:
Originally Posted by Dieselwrencher View Post
Very awesome that you've got it together and have been working out the bugs! The wheels and tires look great on it. Have any under hood pics of it?
Thank you very much! And no new pictures of the bay, but I need to get some! I believe I have a boost leak on it🤔 but not sure yet.
__________________
1971 C20 Daily, Built 350/700R4
1971 K20 Project, LLY Duramax, 5 speed Allison, and 8 in lift on 37x13.50s
K20 Build
Rednwhitec20 is offline   Reply With Quote
Reply

Bookmarks

Tags
4x4, diesel, duramax, k20, swap


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:09 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com