The Newbie Forum The place where you should introduce yourself. Do not ask technical questions here, use the site forum sections.

84 cutlass project

Thread Tools
 
Search this Thread
 
Old February 5th, 2021, 06:49 PM
  #1  
Registered User
Thread Starter
 
Firelt1622's Avatar
 
Join Date: Feb 2021
Posts: 4
84 cutlass project

New here been reading some of the swaps people have done and just inherited my 84 cutlass. It was a project my step dad was working on before he got sick. The car was originally a v6 automatic not sure what transmission was in it. He pulled all that out and put a 350 rocket in it. Not sure what transmission is in it or how to find out. The car runs but the trans isn’t hooked up. The crossmember seems to be in the wrong place for the trans in it now and the original drive shaft it to long. I’d really love to finish up his project in his honor and continue the war he was going with the olds motor and trans. I believe the motor is a mid 70s model any help on how to figure out what trans is in it and how to get the crossmember in the right spot for it would be greatly appreciated. If all else fails I may go to a sbc swap but I’d rather continue how he started as this was his last project he was working on and really loved this car
Firelt1622 is offline  
Old February 5th, 2021, 06:55 PM
  #2  
Banned
 
no1oldsfan's Avatar
 
Join Date: Oct 2012
Posts: 6,267
Cool story. Post pictures. People around here have great knowledge. 84 to me is screaming for an LS motor and trans...
no1oldsfan is offline  
Old February 5th, 2021, 07:04 PM
  #3  
Registered User
Thread Starter
 
Firelt1622's Avatar
 
Join Date: Feb 2021
Posts: 4
I would love to do an LS swap. I was actually talking about it earlier with my wife. When I started talking prices I kinda got that “look”. So I figured I’d keep it on the path it was on for now lol.
Firelt1622 is offline  
Old February 5th, 2021, 07:45 PM
  #4  
Administrator
 
oldcutlass's Avatar
 
Join Date: Oct 2009
Location: Poteau, Ok
Posts: 40,793
Welcome to the site. The transmission pan can tell you what you have to a certain extent.

oldcutlass is online now  
Old February 5th, 2021, 09:25 PM
  #5  
Registered User
 
HighwayStar 442's Avatar
 
Join Date: Jan 2013
Location: Laguna Vista, TX
Posts: 1,631
V6 came with 3 speed THM-200. Not the strongest
7.5" rear end with Final drive ratio std: 2.41 optional 3.08 3.23



Last edited by HighwayStar 442; February 5th, 2021 at 09:27 PM.
HighwayStar 442 is offline  
Old February 5th, 2021, 09:35 PM
  #6  
Registered User
 
HighwayStar 442's Avatar
 
Join Date: Jan 2013
Location: Laguna Vista, TX
Posts: 1,631
Go Olds 350 and Th350 trans, fit right in. Would go great if the rear end is the optional 3.08 3.23
HighwayStar 442 is offline  
Old February 6th, 2021, 07:37 AM
  #7  
Olds Fever
 
CRUZN 66's Avatar
 
Join Date: May 2011
Location: New York (Upstate)
Posts: 4,454
I would suggest 455 with a modified 200R4...
CRUZN 66 is offline  
Old February 6th, 2021, 03:57 PM
  #8  
Oldsdruid
 
rocketraider's Avatar
 
Join Date: Dec 2007
Location: Southside Vajenya
Posts: 10,366
If 350 is good I'd stick with it since you already have it but x2 on a properly built 200-4R. Get a 3.73 rear from an 83-88 Hurst, 442, GN or Monte SS. Fun factor will increase exponentially!

I think the LS swap is highly overrated. The engine is the easy part. Getting it to run is another animal entirely, with all the electronic bs required. But the TV shows never mention that...
rocketraider is online now  
Old February 6th, 2021, 04:09 PM
  #9  
Registered User
Thread Starter
 
Firelt1622's Avatar
 
Join Date: Feb 2021
Posts: 4
Go to looking today and it is an 86 not 84. No big deal to me. It has a 350rocket motor and it runs decent I believe it’s a th400 trans. But it don’t match up to the crossmember at all and the drive shaft is way off. I assume my best option is to get rid of that transmission and go for a th350. Only problem is I can not seem to find an olds th350 any where. I do have a sbc 350 motor that is freshly rebuilt and has a few mods done to it that I could throw in it and I can find a Chevy 350 trans all day around where I live. I’d like to keep the olds motor and all but I can’t find anything for olds around me
Firelt1622 is offline  
Old February 6th, 2021, 04:18 PM
  #10  
Oldsdruid
 
rocketraider's Avatar
 
Join Date: Dec 2007
Location: Southside Vajenya
Posts: 10,366
Buick, Olds, Pontiac and Cadillac share transmission bell bolt pattern. There are also TH350 and 200 that have universal bolt pattern, fits BOPC and Chevy. Shouldn't be too hard to find a core.

But it sounds to me like you want that SBC in it...
rocketraider is online now  
Old February 6th, 2021, 04:57 PM
  #11  
Registered User
 
jmcghee's Avatar
 
Join Date: Sep 2017
Location: New Castle De
Posts: 505
Tell us where you are. A Member here, close to you, may have a 350 turbo. Have a little patience some body will tell you how to make the 400 work. Go on the gbody forum. I am sure the 400 and olds has already been done
jmcghee is online now  
Old February 6th, 2021, 05:28 PM
  #12  
Registered User
Thread Starter
 
Firelt1622's Avatar
 
Join Date: Feb 2021
Posts: 4
I’m in Chattanooga. If anyone close has a good th350 trans is definitely be interested in buying one. I really would like to keep the olds motor in it.
Firelt1622 is offline  
Old February 6th, 2021, 06:09 PM
  #13  
Registered User
 
HighwayStar 442's Avatar
 
Join Date: Jan 2013
Location: Laguna Vista, TX
Posts: 1,631
G bodys have two sets of mounting points for the transmission crossmember. One for TH350 and th2004R than I know for sure. Need to beef up the frame and body. Or a high HP and Torque engine will twist the whole car. Here is a few thing I did.








HighwayStar 442 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AceHole
The Newbie Forum
6
June 9th, 2015 04:35 AM
Olds luvr
Transmission and Driveline
12
August 12th, 2014 08:52 PM
joesw31
Major Builds & Projects
2
July 13th, 2014 08:58 AM
1980cutty
The Newbie Forum
14
April 4th, 2014 01:13 AM
coppercutlass
General Discussion
0
August 4th, 2013 07:21 PM



Quick Reply: 84 cutlass project



All times are GMT -7. The time now is 04:12 PM.