6.2 diesel in a 72? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Beefcake · 04-20-2004, 11:52 AM

Has anyone here done it? what do I need? Im thinking about putting it in either my 3/4 ton or my 1/2 ton.... Not sure yet.

thanks!

SWEET7T · 04-20-2004, 02:01 PM

You would need new front springs! Unless you want your truck to be lowered in the process, that diesel weighs a whole lot more than a small, or big block. You will need the computer and everything that is hooked to that engine from the donor truck. I wouldn't worry too much about the radiator IMO (grab it just in case), diesels don't generate too much heat (they do run at ~210*, instead of gassers ~180*), espically at idle.

ryanroo · 04-20-2004, 02:04 PM

well my grandpa put buick 5.7 deisel in my 72 when it was his, i was a wee little thing so i don't know much about it, except its causing me headaches now that im trying to get a 454 in it.
Ryan

Clancy68 · 04-20-2004, 04:35 PM

i have a 6.2 diesel w/ banks kit in my 84 blazer. it has its pros and cons, its definalty heavy motor 1/2 ton blazer weights 5800 lbs! i do however get 21 mpg. most of the 6.2 have a mechanical fuel injection pump, so theres no computers on that thing. its got decent power i guess but any of the latest generation diesels will be a lot better. its a pain in the you know what to work on, everything is dirty and a very tight fit, in a full size truck engine compartment. i would try and get a manual for it, i have the 700 r4 and after a while it drives me nuts, diesels are much happier with manuals.

--Scott

72 CustomCamper · 04-21-2004, 12:51 AM

Actually the 6.2 is not that much heavier than a big block. When I got my 72 from my uncle he had put an 84 6.2 into it years earlier.I switched the diesel out for a big block so this comes from experience! You will need to get the engine wiringharness, hook up a light in the dash to let you know when the glow plugs are charged and you will need to modify your stock engine towers so the exhaust manifolds will clear. It is not too hard of a swap in,but after driving the truck both ways,I would rather swap in a big block...

Chuck

72 CustomCamper · 04-21-2004, 12:53 AM

Here is the 6.2 when in my 72...

Chuck

Beefcake · 04-21-2004, 10:14 AM

Im going to run biodiesel. thats why Im putting the 6.2 in one of my trucks. A guy here at work makes it from waste vegetable oil that he gets for free at a restraint. Claims he can make it for under 50 cents per gallon. Im not an expert on the process, but if you guys are interested check out this web site:
http://biodiesel.infopop.cc/6/ubb.x?a=cfrm&s=447609751

Does anyone know where I can find engine mounts for this converstion????

dubie · 04-21-2004, 10:36 AM

I know that the Cummins Diesels weigh just under 3000 Lbs,and so do the Detroit Diesel 60 series. We used to have 2 of them in the shop here for sale on consignment. Thats a sh!t load of weight to put on a front end. I have a turbo Cummins in my 98 Dodge 3/4 ton 4x4 and it has had the front end done in it 3 times already and it only has 70,000 miles on it. Dodge needed to use 1 ton front ends in these Cummins trucks.

Longhorn Man · 04-22-2004, 12:10 AM

This may take some trial and error, but the 73-87 came with the 6.2, and the engine towers from that gen truck fit darn near perfectly in our rigs...fine one of those trucks and rob it of it's detail parts.
I would personally look for an early 6.5, it was less doggish than the 6.2 was. You'll need a BOP tranny if memory serves, and an aux battery tray with the two betteries run in parallel would be a good idea too.

Beefcake · 04-22-2004, 09:03 AM

I would love a 6.5. But, I made a mistake and bought before investigating..... I got the engine for 100 bucks though.... So its not that bad. I guess the best thing to do with the 6.2 is slap on a set of 6.5's heads.... and upgrade the crank.

72 CustomCamper · 04-22-2004, 02:27 PM

The 6.2 I had in the truck was a mean motor. It was all stock 84 motor and would run circles around tuners and other diesels. I almost regret getting rid of the diesel,but my driving habets and non use of the truck did not warrent one...

Chuck

**'70_402** · 04-22-2004, 04:41 PM

Man...that biodisel is pretty interesting....who would have thought vegitable oil=fuel.... there are some smart F*%#ers out there....

68 Suburban · 04-22-2004, 04:46 PM

Quote:

Originally posted by Beefcake
Im going to run biodiesel. thats why Im putting the 6.2 in one of my trucks. A guy here at work makes it from waste vegetable oil that he gets for free at a restraint. Claims he can make it for under 50 cents per gallon. Im not an expert on the process, but if you guys are interested check out this web site:
http://biodiesel.infopop.cc/6/ubb.x?a=cfrm&s=447609751

Does anyone know where I can find engine mounts for this converstion????

Your trucks exhaust is going to smell like french fries

gizmo · 04-22-2004, 05:42 PM

From the sounds of it I guess I had the wrong 6.2 diesel. It was in a Suburban and the things I can remember from the top of my head. Rebuilt transmission $1200.00, Head Gasket $2500.00, Radiator recored $585.00, Glo-Plugs $125.00 w/me installing them, 3 different starters with the last one decided to break the bolts from the 22:1 Compression. Rebuilt Fuel injection pump $425.00. That is what I can remember. It all happened within 6 months after buying it. Glad it was under warranty. The day it was out of warranty I traded it off. The dash caught on fire while I was on the way to the garage to trade it in. I latter talked to a service manager at Collins GMC about the bad luck I had with the Suburban. He described it to me and told me the same Suburban that I used to own was a nightmare to him. He said that everything I mentioned to him except for the radiator was still under warranty from GM. He knew the doctor that used to own it had sold it and was hoping the new buyer (Me) never found out about the warranties. He told me this after he found out were the Suburban went. Mine was a dawg for speed and it got 16MPG on the Highway. Good Luck with your 6.2.

Longhorn Man · 04-22-2004, 09:19 PM

They were hit and mis...some were awsome, some were junk...seems to be very little inbetween.
If you check out this thread from about 6 months ago, there is a link with info and a story or two on the vegi-fuel.... http://67-72chevytrucks.com/vboard/s...e&pagenumber=1
Very interesting reading, almost made me want a deisel Chevete...almost.

Stanford · 04-23-2004, 01:42 AM

After I win the lottery, Im going to put a duramax in a 3/4 ton truck.

Stanford

Beefcake · 04-23-2004, 11:09 AM

thats about what it would take too(lottery).... the good news is our trucks will still be around when the duramax trucks begin to invade the junk yards 20 years from now.....mabye then we can afford one.

shortymac83 · 04-23-2004, 11:56 AM

Quote:

Originally posted by dubie
I know that the Cummins Diesels weigh just under 3000 Lbs,and so do the Detroit Diesel 60 series. We used to have 2 of them in the shop here for sale on consignment. Thats a sh!t load of weight to put on a front end. I have a turbo Cummins in my 98 Dodge 3/4 ton 4x4 and it has had the front end done in it 3 times already and it only has 70,000 miles on it. Dodge needed to use 1 ton front ends in these Cummins trucks.

3 THOUSAND pounds? my delta 88 weighs 3800! are you meaning 300? I'm slightly confused...

04-20-2004, 11:52 AM	#1
Beefcake Registered User Join Date: Mar 2003 Location: Motor City Posts: 540	6.2 diesel in a 72? Has anyone here done it? what do I need? Im thinking about putting it in either my 3/4 ton or my 1/2 ton.... Not sure yet. thanks! __________________ 72 GMC Camper Special 2500. currently has 350/350/14 bolt. 383 and 400 tranny is in the works.

04-20-2004, 02:01 PM	#2
SWEET7T Try spinnin 4 rear tars Join Date: Sep 2003 Location: Salt Lake City, Utah Posts: 757	You would need new front springs! Unless you want your truck to be lowered in the process, that diesel weighs a whole lot more than a small, or big block. You will need the computer and everything that is hooked to that engine from the donor truck. I wouldn't worry too much about the radiator IMO (grab it just in case), diesels don't generate too much heat (they do run at ~210, instead of gassers ~180), espically at idle. __________________ SWEET7T 1970 C10, 2wd, LB, 307/TH350/3.08. PS, PB

04-20-2004, 02:04 PM	#3
ryanroo Senior Member Join Date: Apr 2004 Location: sw colorado Posts: 2,720	well my grandpa put buick 5.7 deisel in my 72 when it was his, i was a wee little thing so i don't know much about it, except its causing me headaches now that im trying to get a 454 in it. Ryan __________________ 72 K20 12v build 72 K20 "parts truck" A place for your diesel swap questions

04-21-2004, 12:51 AM	#5
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,369	Actually the 6.2 is not that much heavier than a big block. When I got my 72 from my uncle he had put an 84 6.2 into it years earlier.I switched the diesel out for a big block so this comes from experience! You will need to get the engine wiringharness, hook up a light in the dash to let you know when the glow plugs are charged and you will need to modify your stock engine towers so the exhaust manifolds will clear. It is not too hard of a swap in,but after driving the truck both ways,I would rather swap in a big block... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

04-21-2004, 12:53 AM	#6
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,369	Here is the 6.2 when in my 72... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

04-20-2004, 04:35 PM	#4
Clancy68 Registered User Join Date: Nov 2003 Location: Morgan Hill, CA Posts: 354	i have a 6.2 diesel w/ banks kit in my 84 blazer. it has its pros and cons, its definalty heavy motor 1/2 ton blazer weights 5800 lbs! i do however get 21 mpg. most of the 6.2 have a mechanical fuel injection pump, so theres no computers on that thing. its got decent power i guess but any of the latest generation diesels will be a lot better. its a pain in the you know what to work on, everything is dirty and a very tight fit, in a full size truck engine compartment. i would try and get a manual for it, i have the 700 r4 and after a while it drives me nuts, diesels are much happier with manuals. --Scott

04-21-2004, 10:14 AM	#7
Beefcake Registered User Join Date: Mar 2003 Location: Motor City Posts: 540	Im going to run biodiesel. thats why Im putting the 6.2 in one of my trucks. A guy here at work makes it from waste vegetable oil that he gets for free at a restraint. Claims he can make it for under 50 cents per gallon. Im not an expert on the process, but if you guys are interested check out this web site: http://biodiesel.infopop.cc/6/ubb.x?a=cfrm&s=447609751 Does anyone know where I can find engine mounts for this converstion???? __________________ 72 GMC Camper Special 2500. currently has 350/350/14 bolt. 383 and 400 tranny is in the works.

04-21-2004, 10:36 AM	#8
dubie Registered User Join Date: May 2000 Location: Flin Flon, Manitoba, Canada Posts: 8,855	I know that the Cummins Diesels weigh just under 3000 Lbs,and so do the Detroit Diesel 60 series. We used to have 2 of them in the shop here for sale on consignment. Thats a sh!t load of weight to put on a front end. I have a turbo Cummins in my 98 Dodge 3/4 ton 4x4 and it has had the front end done in it 3 times already and it only has 70,000 miles on it. Dodge needed to use 1 ton front ends in these Cummins trucks. __________________ My name's Tim and I'm a truckaholic My 56 Chevy shop truck build http://67-72chevytrucks.com/vboard/s...d.php?t=562795

04-22-2004, 12:10 AM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	This may take some trial and error, but the 73-87 came with the 6.2, and the engine towers from that gen truck fit darn near perfectly in our rigs...fine one of those trucks and rob it of it's detail parts. I would personally look for an early 6.5, it was less doggish than the 6.2 was. You'll need a BOP tranny if memory serves, and an aux battery tray with the two betteries run in parallel would be a good idea too.

04-22-2004, 09:03 AM	#10
Beefcake Registered User Join Date: Mar 2003 Location: Motor City Posts: 540	I would love a 6.5. But, I made a mistake and bought before investigating..... I got the engine for 100 bucks though.... So its not that bad. I guess the best thing to do with the 6.2 is slap on a set of 6.5's heads.... and upgrade the crank. __________________ 72 GMC Camper Special 2500. currently has 350/350/14 bolt. 383 and 400 tranny is in the works.

04-22-2004, 02:27 PM	#11
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,369	The 6.2 I had in the truck was a mean motor. It was all stock 84 motor and would run circles around tuners and other diesels. I almost regret getting rid of the diesel,but my driving habets and non use of the truck did not warrent one... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

04-22-2004, 04:41 PM	#12
'70_402 Senior Member Join Date: Dec 2003 Location: Pampa, Texas Posts: 1,554	Man...that biodisel is pretty interesting....who would have thought vegitable oil=fuel.... there are some smart F*%#ers out there.... __________________ https://www.ebay.com/itm/295742064443

04-22-2004, 05:42 PM	#14
gizmo 100% Beefcake Join Date: Apr 2001 Location: LaVale, Maryland Posts: 246	From the sounds of it I guess I had the wrong 6.2 diesel. It was in a Suburban and the things I can remember from the top of my head. Rebuilt transmission $1200.00, Head Gasket $2500.00, Radiator recored $585.00, Glo-Plugs $125.00 w/me installing them, 3 different starters with the last one decided to break the bolts from the 22:1 Compression. Rebuilt Fuel injection pump $425.00. That is what I can remember. It all happened within 6 months after buying it. Glad it was under warranty. The day it was out of warranty I traded it off. The dash caught on fire while I was on the way to the garage to trade it in. I latter talked to a service manager at Collins GMC about the bad luck I had with the Suburban. He described it to me and told me the same Suburban that I used to own was a nightmare to him. He said that everything I mentioned to him except for the radiator was still under warranty from GM. He knew the doctor that used to own it had sold it and was hoping the new buyer (Me) never found out about the warranties. He told me this after he found out were the Suburban went. Mine was a dawg for speed and it got 16MPG on the Highway. Good Luck with your 6.2. __________________ 1969 C10,350,4:11 posi, Fast Enough 1984 Monte Carlo SS 1987 Chevy S-10, 355 w/150 Shot of Nitrous, Fun,Fun 1938 Nash Lafayette 1956 MG Magnette

04-22-2004, 09:19 PM	#15
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	They were hit and mis...some were awsome, some were junk...seems to be very little inbetween. If you check out this thread from about 6 months ago, there is a link with info and a story or two on the vegi-fuel.... http://67-72chevytrucks.com/vboard/s...e&pagenumber=1 Very interesting reading, almost made me want a deisel Chevete...almost.

04-23-2004, 01:42 AM	#16
Stanford WILLY FOR PRESIDENT!! Join Date: Feb 2004 Location: Wichita, Kansas Posts: 190	After I win the lottery, Im going to put a duramax in a 3/4 ton truck. Stanford __________________ *"He's a high tech REDNECK."* George Jones '67 C/10 FOR SALE!! $600, runs, strait grill, good parts, or beater truck '68 GMC K25, 4x4, current project '71 Custom/10, Crate 350, My Baby!! '97 Pontiac Grand Prix GTP



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04-23-2004, 11:09 AM	#17
Beefcake Registered User Join Date: Mar 2003 Location: Motor City Posts: 540	thats about what it would take too(lottery).... the good news is our trucks will still be around when the duramax trucks begin to invade the junk yards 20 years from now.....mabye then we can afford one. __________________ 72 GMC Camper Special 2500. currently has 350/350/14 bolt. 383 and 400 tranny is in the works.

Register or Log In To remove these advertisements.