Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Datsun 620 w/ LS & T56 - Build thread

Thread Tools
 
Search this Thread
 
Old 07-08-2017 | 06:12 PM
  #1  
cej2525's Avatar
Thread Starter
Teching In
 
Joined: Apr 2017
Posts: 11
Likes: 1
From: South Mississippi
Default Datsun 620 w/ LS & T56 - Build thread

It has taken roughly 7-8 years for me to find everything I needed to start this project. Living in Ms it's hard to find these little trucks. I have been doing engine swaps for quite a while and have always wanted a compact truck platform to swap. I tried very hard to convince myself of a LUV or Courier. The Datsun was hard to escape. So here are the plans for my 78' regular cab.

2x4 box frame rails
Heidts Mustang II front suspension
4 Link w/ Panhard
QA1 Proma Stars
8.8 w/ 31 spline axles, OEM posi, 3.73
LS1 (99 Fbody) or a LM7 (2001 truck)
T56 with many upgrades

There are a lot of other specifications to mention but that's the "meat and potato's" of the whole thing. I'm not building a dedicated strip machine or a mini truck, just a fun daily. I'll post some pictures below that look close to the finish product I'm going for:











So far I have got my frame squared up and the front suspension tacked in.
I liked everything about the Heidts front end except the coilover mount. So I just ordered the standard universal kit with a power rack and planned on fabricating the mopunt myself. Here is what I have done so far:




Datsun 620 w/ LS & T56 - Build thread-vlnqu1x.jpg

Datsun 620 w/ LS & T56 - Build thread-sxikm96.jpg

Datsun 620 w/ LS & T56 - Build thread-qts48os.jpg

Datsun 620 w/ LS & T56 - Build thread-recoqgd.jpg

Datsun 620 w/ LS & T56 - Build thread-ajioufo.jpg

Next is to shorten my 8.8 and start on the 4 link then I can fit the cab and bed. I have a complete 1990 Z28 to use as a donor car and plan to use as much as absolutely possible out of it. Any input or questions would be great as I have many questions myself.
The following users liked this post:
Braiden Moffat (06-07-2020)
Old 07-09-2017 | 09:04 PM
  #2  
cej2525's Avatar
Thread Starter
Teching In
 
Joined: Apr 2017
Posts: 11
Likes: 1
From: South Mississippi
Default

Approved!!!!!
Old 07-09-2017 | 09:16 PM
  #3  
1973 STEP A SIDE's Avatar
Launching!
iTrader: (4)
 
Joined: Dec 2012
Posts: 261
Likes: 5
Default

That is going to be a kool little truck !!
Old 07-09-2017 | 09:32 PM
  #4  
cej2525's Avatar
Thread Starter
Teching In
 
Joined: Apr 2017
Posts: 11
Likes: 1
From: South Mississippi
Default

It's going to take a while but that's the fun part.
Old 07-10-2017 | 01:20 AM
  #5  
mytmouz's Avatar
On The Tree
iTrader: (2)
 
Joined: Oct 2015
Posts: 141
Likes: 2
Default

Welcome aboard neighbor. I got 3 v8 mini trucks, 2 LUV's and a Nissan. I covet thy tailgate, as I want the skin off one to put on my Nissan stepside bed...

I had a couple of 620's back in the day, pretty cool looking trucks...
Old 07-10-2017 | 02:46 AM
  #6  
Russ.W.'s Avatar
Teching In
 
Joined: Sep 2015
Posts: 49
Likes: 5
Default

Originally Posted by cej2525
Approved!!!!!
I concur.

Great little ute's.
Old 07-10-2017 | 06:50 AM
  #7  
Goldhawg's Avatar
TECH Enthusiast
iTrader: (7)
 
Joined: Jan 2011
Posts: 538
Likes: 3
From: Dayton Ohio
Default

subscribed
Old 07-10-2017 | 07:10 AM
  #8  
cej2525's Avatar
Thread Starter
Teching In
 
Joined: Apr 2017
Posts: 11
Likes: 1
From: South Mississippi
Default

Originally Posted by mytmouz
Welcome aboard neighbor. I got 3 v8 mini trucks, 2 LUV's and a Nissan. I covet thy tailgate, as I want the skin off one to put on my Nissan stepside bed...

I had a couple of 620's back in the day, pretty cool looking trucks...
With 3 mini's I would say you are doing well. I have a 84' Toyota 4x4 with a CSB. And now I'm doing this Datsun. We may be able to work something out with a tailgate when I get done.
Old 07-10-2017 | 10:54 PM
  #9  
jfg455's Avatar
TECH Enthusiast

iTrader: (5)
 
Joined: Aug 2008
Posts: 656
Likes: 0
From: nh
Default

I saw the Datsun 620 LS swap and got excited! Then I remembered the 620 was the truck and not like my 610...Lol. I am 80% done with an LS swap into a 610
Old 07-11-2017 | 06:26 AM
  #10  
cej2525's Avatar
Thread Starter
Teching In
 
Joined: Apr 2017
Posts: 11
Likes: 1
From: South Mississippi
Default

Originally Posted by jfg455
I saw the Datsun 620 LS swap and got excited! Then I remembered the 620 was the truck and not like my 610...Lol. I am 80% done with an LS swap into a 610
I can't see the pictures on your thread for some reason. Photobucket has a message that says to please enable third party hosting to view. SUCKS
Old 07-11-2017 | 08:40 AM
  #11  
Nismo Kid's Avatar
TECH Enthusiast

iTrader: (3)
 
Joined: Dec 2010
Posts: 636
Likes: 4
From: San Antonio TX
Default

Fantastic build! Who the hell wouldn't subscribe to this thread?!
Old 07-11-2017 | 08:40 AM
  #12  
AAIIIC's Avatar
TECH Addict
15 Year Member
iTrader: (19)
 
Joined: Aug 2007
Posts: 2,408
Likes: 107
From: Where the Navy tells me to go
Default

Try https://fixphotobucket.com. I've used it with mixed results on a couple of different threads over on cadillacforums.com.
Old 07-11-2017 | 09:33 AM
  #13  
cej2525's Avatar
Thread Starter
Teching In
 
Joined: Apr 2017
Posts: 11
Likes: 1
From: South Mississippi
Default

Originally Posted by Nismo Kid
Fantastic build! Who the hell wouldn't subscribe to this thread?!
Thanks man, to each their own!
Old 07-11-2017 | 09:34 AM
  #14  
cej2525's Avatar
Thread Starter
Teching In
 
Joined: Apr 2017
Posts: 11
Likes: 1
From: South Mississippi
Default

Originally Posted by AAIIIC
Try https://fixphotobucket.com. I've used it with mixed results on a couple of different threads over on cadillacforums.com.
Appreciate the heads up. I'll give it a shot.
Old 07-12-2017 | 07:22 PM
  #15  
74CHEVC10's Avatar
Staging Lane
iTrader: (1)
 
Joined: Apr 2012
Posts: 56
Likes: 0
From: Sisseton SD
Default

Im in...this is going to be good
Old 02-07-2018 | 08:51 AM
  #16  
eri350z1's Avatar
Registered User
 
Joined: Feb 2018
Posts: 1
Likes: 0
Default 1974 620

nice truck bro i have a 1974 620 im going to do the same thing ls1 with a t56 im having a hard time finding parts i need any suggestions or do you know where i can buy them?
cross member is what i cant find
Old 02-07-2018 | 09:11 AM
  #17  
Torqstorm's Avatar
FormerVendor
 
Joined: Aug 2017
Posts: 186
Likes: 1
From: Wyoming, Mi
Default

Very cool project!!
Old 03-03-2018 | 12:35 PM
  #18  
Steve68's Avatar
TECH Fanatic
iTrader: (23)
 
Joined: Jul 2005
Posts: 1,489
Likes: 6
From: Orl Fl
Default

had a 620 myself,

Lowered flat white with the yelloy-orange wheels, original 4 cyl, was fun to cruise,
Old 03-03-2018 | 05:49 PM
  #19  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,222
Likes: 1,511
From: The City of Fountains
Default

How does the upper control arm come off if you weld the shock mount over it?

Andrew
Old 03-04-2018 | 12:56 AM
  #20  
scj's Avatar
scj
TECH Addict
iTrader: (89)
 
Joined: Feb 2008
Posts: 1,738
Likes: 23
Default

Originally Posted by Project GatTagO
How does the upper control arm come off if you weld the shock mount over it?

Andrew
Last photo shows shock mount is bolted.



Quick Reply: Datsun 620 w/ LS & T56 - Build thread



All times are GMT -5. The time now is 02:01 PM.