Detroit 6v73t burb - The 1947 - Present Chevrolet & GMC Truck Message Board Network

silverbullet01 · 11-21-2011, 09:47 PM

hey guys
the turbo 400 in my 84 3/4 ton 4x4 suburban went a few months back, and my tucker out old 305 is in need of a freshen up. so my thoughts are to say screw it, and put a detroit 6v73t with a eaton 9 speed in it! i just want to know if anybody on here has done/know someone who has done this before, i need lots and lots of info, and pictures if possible, anything at all will help me along as i have never attempted a swap of this nature, thanks guys!

Edahall · 11-22-2011, 11:32 AM

Quote:

Originally Posted by silverbullet01

hey guys
the turbo 400 in my 84 3/4 ton 4x4 suburban went a few months back, and my tucker out old 305 is in need of a freshen up. so my thoughts are to say screw it, and put a detroit 6v73t with a eaton 9 speed in it! i just want to know if anybody on here has done/know someone who has done this before, i need lots and lots of info, and pictures if possible, anything at all will help me along as i have never attempted a swap of this nature, thanks guys!

The 6V73t is too heavy and physically too large for our trucks. If you're interested in a diesel repower, the Cummins 6BT is about as big and heavy of an engine that can be shoehorned under the hood. It can also put out a lot more power than that the Detroit and burn less fuel.

greguw · 11-22-2011, 04:15 PM

I would go for it ... I'm in the process of doing my 1990 and with all the frame and suspension work my build would hold a Detroit with no problem .
There is a pic floating around of a guy who did a K30 and it looks great and I think he has a link on youtube .

silverbullet01 · 11-22-2011, 05:48 PM

lol going for it is the plan, there is a GMC brigadier with 6v71( thats what i meant to write in the thread but was wayy too tired to notice that i put 73) and a eaton 9 speed im in the process of buying, the motor alone weighs roughly 2000 ibs, im running a 44 front atm, and unless i can web it and do other mods im going to have to up it to a dana 60, then start adding springs to hold it up. i have a divorced case im going to use, although ill have to alter the tranny tunel to accomodate that big 9 speed.. i know that there are much easier motor to swap to, but i want a detroit, and you dont see 6v's in squares.

Berg · 12-02-2011, 10:17 AM

Personally I'd do a 3-53T or a 4-53T Silver with a Jake brake on it. I've seen a few old GM's with this swap and it is a lot easier to do with a lot less mods. You may also want to think about running a 2" or 3" body lift to fit everything a little easier. Check out youtube for some cool swaps. I know they don't have as much power as a 6-71 but there is nothing like a screamin Jimmy! You may also think about maybe running something like a Clark 5 speed or an SM465 with a Ranger torque splitter or something along those lines. I kind of like the idea of twin sticks but I know it can get old fast. You may also want to think about going with stiff K30 springs and running a Dana 60 Kingpin. I'd just hate to see you rip this thing apart and then give up on it. There are a bunch of guys who have done the Inline 3's and 4's and use them all the time.

Edahall · 12-02-2011, 10:23 AM

Quote:

Originally Posted by Berg

You may also want to think about going with stiff K30 springs and running a Dana 60 Kingpin. I'd just hate to see you rip this thing apart and then give up on it. There are a bunch of guys who have done the Inline 3's and 4's and use them all the time.

You'll need something a lot stiffer than K30 springs for a 6V71. That's the spring I'm using to hold up my 6BT Cummins which at 1100 lbs is about half the weight of a 6V71.

greguw · 12-02-2011, 01:03 PM

Deaver springs are the way to go ...They will build them to your needs .

silverbullet01 · 12-05-2011, 12:17 PM

i agree the 6v71 is a bit large for the project, but im just not sure if a 453t would have the power i want. i also have a bull low 4 speed with a divorced case i was thinking about using, 4 speed standards for 4x4's around here are very scarce, and dana 60's are next to impossible to find.. has anybody on here ever been in or owned a 453t in one of these rigs?

**Dieselwrencher** · 12-07-2011, 02:51 AM

I'd say do it! I put a 8V92 in a 86 K30 years ago. No the stock fire wall wasn't all stock.

I also put a DT466 in my 76 a few years ago. So, it can be done. If you have it use it.

Chevyman350 · 12-09-2011, 09:32 AM

What about a 6v53?

11-21-2011, 09:47 PM	#1
silverbullet01 Registered User Join Date: Dec 2009 Location: Annapolis Royal Nova Scotia Posts: 56	Detroit 6v73t burb hey guys the turbo 400 in my 84 3/4 ton 4x4 suburban went a few months back, and my tucker out old 305 is in need of a freshen up. so my thoughts are to say screw it, and put a detroit 6v73t with a eaton 9 speed in it! i just want to know if anybody on here has done/know someone who has done this before, i need lots and lots of info, and pictures if possible, anything at all will help me along as i have never attempted a swap of this nature, thanks guys! Attached Images

11-22-2011, 04:15 PM	#3
greguw Registered User Join Date: Jun 2010 Location: Bucks County , Pa Posts: 223	Re: Detroit 6v73t burb I would go for it ... I'm in the process of doing my 1990 and with all the frame and suspension work my build would hold a Detroit with no problem . There is a pic floating around of a guy who did a K30 and it looks great and I think he has a link on youtube .

11-22-2011, 05:48 PM	#4
silverbullet01 Registered User Join Date: Dec 2009 Location: Annapolis Royal Nova Scotia Posts: 56	Re: Detroit 6v73t burb lol going for it is the plan, there is a GMC brigadier with 6v71( thats what i meant to write in the thread but was wayy too tired to notice that i put 73) and a eaton 9 speed im in the process of buying, the motor alone weighs roughly 2000 ibs, im running a 44 front atm, and unless i can web it and do other mods im going to have to up it to a dana 60, then start adding springs to hold it up. i have a divorced case im going to use, although ill have to alter the tranny tunel to accomodate that big 9 speed.. i know that there are much easier motor to swap to, but i want a detroit, and you dont see 6v's in squares.

12-02-2011, 10:17 AM	#5
Berg Registered User Join Date: Aug 2011 Location: Long Island, NY Posts: 84	Re: Detroit 6v73t burb Personally I'd do a 3-53T or a 4-53T Silver with a Jake brake on it. I've seen a few old GM's with this swap and it is a lot easier to do with a lot less mods. You may also want to think about running a 2" or 3" body lift to fit everything a little easier. Check out youtube for some cool swaps. I know they don't have as much power as a 6-71 but there is nothing like a screamin Jimmy! You may also think about maybe running something like a Clark 5 speed or an SM465 with a Ranger torque splitter or something along those lines. I kind of like the idea of twin sticks but I know it can get old fast. You may also want to think about going with stiff K30 springs and running a Dana 60 Kingpin. I'd just hate to see you rip this thing apart and then give up on it. There are a bunch of guys who have done the Inline 3's and 4's and use them all the time. __________________ 1970 Chevelle SS396 1984 K5 Blazer -First Truck! 1999 Big Block K2500 'Burb

12-02-2011, 01:03 PM	#7
greguw Registered User Join Date: Jun 2010 Location: Bucks County , Pa Posts: 223	Re: Detroit 6v73t burb Deaver springs are the way to go ...They will build them to your needs . Attached Images

12-05-2011, 12:17 PM	#8
silverbullet01 Registered User Join Date: Dec 2009 Location: Annapolis Royal Nova Scotia Posts: 56	Re: Detroit 6v73t burb i agree the 6v71 is a bit large for the project, but im just not sure if a 453t would have the power i want. i also have a bull low 4 speed with a divorced case i was thinking about using, 4 speed standards for 4x4's around here are very scarce, and dana 60's are next to impossible to find.. has anybody on here ever been in or owned a 453t in one of these rigs?

12-07-2011, 02:51 AM	#9
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: Detroit 6v73t burb I'd say do it! I put a 8V92 in a 86 K30 years ago. No the stock fire wall wasn't all stock. I also put a DT466 in my 76 a few years ago. So, it can be done. If you have it use 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.*

12-09-2011, 09:32 AM	#10
Chevyman350 Registered User Join Date: Dec 2009 Location: Madison, Wi Posts: 80	Re: Detroit 6v73t burb What about a 6v53?



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