Pontiac T-350 and Chevy T-350 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 06-23-2011, 09:23 PM
Registered User
 
Join Date: Dec 2009
Location: Ketchikan
Posts: 288
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
Pontiac T-350 and Chevy T-350

A person here in town has a TH350 for a 1983 trans am. From what I read there's alot of differences right? So it wouldn't be easy to bolt that sucker into my chevy pickup with a 454? My Pickup has a TH350 short shaft now. It looks to me like the bell housing bolts up different and the torque converter too.. Its cheap enough I thought I'd ask. I've mostly found people trying to stick a chevy th350 into thier pontiac..



Greg

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 06-23-2011, 09:31 PM
BOBCRMAN@aol.com's Avatar
Member
 
Last photo:
Join Date: May 2002
Location: Holly, michigan
Posts: 8,089
Wiki Edits: 0

Thanks: 24
Thanked 258 Times in 242 Posts
The big difference is the bellhousing. Adapters are readily available. Other than that, a 350 turbo is a 350 turbo. No matter what it came in.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-23-2011, 11:04 PM
WDCreech's Avatar
Grumpy Old Goat Herder
 
Last photo:
Join Date: Apr 2006
Location: Anchorage, Alaska
Age: 70
Posts: 1,310
Wiki Edits: 0

Thanks: 3
Thanked 29 Times in 27 Posts
Quote:
Originally Posted by BOBCRMAN@aol.com
The big difference is the bellhousing. Adapters are readily available. Other than that, a 350 turbo is a 350 turbo. No matter what it came in.
The '83 TA would have a Chevy engine. The Pontiac engine was dropped after '81.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 06-23-2011, 11:24 PM
tnsmith10's Avatar
when will it rain???
 
Last photo:
Join Date: Jul 2003
Location: where its very dry and dusty
Age: 43
Posts: 1,297
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by ekacpuc
A person here in town has a TH350 for a 1983 trans am. From what I read there's alot of differences right? So it wouldn't be easy to bolt that sucker into my chevy pickup with a 454? My Pickup has a TH350 short shaft now. It looks to me like the bell housing bolts up different and the torque converter too.. Its cheap enough I thought I'd ask. I've mostly found people trying to stick a chevy th350 into thier pontiac..

Greg


what engine did the trans am come with? and are you sure its a th350 in it? for the cars in that era, it more likely that the car came with a metric 200 or a 700r4. depending on engine. i have only seen a few th350's in the earlier camaros/firebirds of that era, but usually they were conversions from a 700r4.
also, if by chance it is a th350, and its factory, its more than likely to be a th350c, than a regular th350.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 06-24-2011, 12:08 AM
Registered User
 
Join Date: Dec 2009
Location: Ketchikan
Posts: 288
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
The trans am has a 305 in it. The TH350 was bought new (still in box) then they sold the car. So If its a 6" tailshaft I could use it?


Greg
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 06-24-2011, 12:13 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Yes, should fit if it's 6" Tail
Check for a electrical connector on the driver side = 350C
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 06-24-2011, 12:47 AM
Registered User
 
Join Date: Dec 2009
Location: Ketchikan
Posts: 288
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
Thanks! It looks like my luck has turned for the better... Gotta love GM. I've got a ford pickup and it isn't near as easy to find parts.


Greg
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 06-24-2011, 02:18 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
An easy way to tell the difference between a Chevy and BOPC/BuickOldsPontiacCaddy Trans is the top of the Bellhousing shape.
Chevy looks like this /\ or pointed in the center.
BOP looks like \___/ or valley.

Chevy Torque Converter uses Bolt & Nut mounting.
BOP Torque Converter uses Bolts only.

Unibell Housing has both patterns:
Attached Images
File Type: bmp Unibell Bolt Pattern (Small).bmp (1.14 MB, 159 views)
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 06-26-2011, 11:52 PM
Registered User
 
Join Date: Dec 2009
Location: Ketchikan
Posts: 288
Wiki Edits: 0

Thanks: 2
Thanked 0 Times in 0 Posts
So the electric plugs are for the lockup. Could I make that work if needed? I see summit has SOME kits...



Greg
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 06-27-2011, 02:57 AM
Registered User
 
Last photo:
Join Date: Jun 2010
Location: Finland
Posts: 194
Wiki Edits: 0

Thanks: 6
Thanked 8 Times in 8 Posts
You need torque converter too,if it is 350C lockup
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 06-27-2011, 07:03 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by ekacpuc
So the electric plugs are for the lockup. Could I make that work if needed? I see summit has SOME kits...



Greg
Yes, the lock up can be easily wired up to work w/a toggle, or a little more work to have it apply as per the OEM intended.

You need to know that the TH350C isn't a heavy duty tranny, per se. By that, I mean it was used behind a 305, and the 90 degree V6's, so it doesn't have as many clutches as can be fitted if mods are done to allow for the extra plates to be installed- a mod that I definitely would recommend you do for use w/a BBC, along w/the better intermediate $prag assembly- not just a hardened race.

See Post #11 for more on the TCC. Torque converters for the 350C can be found at Pats, TCI, and Keisler to name three, I'm sure there are others. But unless you modify the tranny to work w/o a lock up TC, you have to use a lock up TC.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 06-27-2011, 07:20 AM
55project's Avatar
Registered User
 
Last photo:
Join Date: May 2006
Location: Phila. Pa.
Age: 53
Posts: 24
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Here's a link to ID auto tranny's>

http://www.crankshaftcoalition.com/w...identification
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 06-27-2011, 11:13 AM
1ownerT's Avatar
Home School Valedictorian
 
Last wiki edit: Health and safety in the shop or garage Last photo:
Join Date: Dec 2004
Location: Iowa
Age: 53
Posts: 1,645
Wiki Edits: 4

Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by ekacpuc
So the electric plugs are for the lockup. Could I make that work if needed? I see summit has SOME kits...



Greg
I would recommend using a kit with a brake activated disconnect. If you do not/forget to kill the power when stopping it will act like a manual trans and kill the engine.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 06-28-2011, 08:21 AM
55project's Avatar
Registered User
 
Last photo:
Join Date: May 2006
Location: Phila. Pa.
Age: 53
Posts: 24
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 1ownerT
I would recommend using a kit with a brake activated disconnect. If you do not/forget to kill the power when stopping it will act like a manual trans and kill the engine.

Good info, i didn't know about this..
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 06-28-2011, 08:51 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Cars/Trucks that came with Cruise Control or Non-electronic OD Trans & TH350C have the correct 4-Pin Brake Light switch.
Run the 12V+ thru Brake switch, Toggle switch, then to Pin-A on 4-Pin connector to TCC Lockup on 2004R & 700R4. The TH350C uses a 1-wire connector.
When the Brake pedal is depressed it cuts 12V+ to Trans.
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
pontiac 350 and chevy 350 4x4Chevy Engine 5 02-21-2011 09:37 PM
Chevy 350 in a 56 Pontiac NOM Engine 18 04-18-2010 10:17 AM
is this Pontiac or Chevy 350 GMR Engine 8 03-31-2009 06:28 AM
DEBATE: Which heads are better?....Chevy 350, Pontiac 350, Olds 350 or Plymouth 350. Steve-0321 Hotrodding Basics 21 11-26-2007 12:44 AM
Pontiac 350 in my 51 Chevy 51SportsCoupe Engine 6 05-14-2005 12:19 PM


All times are GMT -6. The time now is 11:47 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.