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TH350C converter

Old Oct 13, 2019 | 09:36 AM
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Default TH350C converter

Does any of our vendors make a TH350C converter. I’m going to take a chance and rebuild the transmission for my 80 TA that I’m LS swapping but I’d like to run a 32-3600 converter when it’s all done. I’ve installed several Yank converters for people and loved how the 3600s drove in the 4l60.
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Old Oct 13, 2019 | 10:36 AM
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A converter is not going to feel the same in a different transmission.

Also, if you don't want lock up, you can convert the 350c to non lock up using an input shaft/drum, and pump from a regular th350. The non lock up converters are considerably less costly. It's been a while since I've looked at the prices though. But I'm sure you've already noticed availability is short since you're asking where to find one.
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Old Oct 13, 2019 | 11:51 AM
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I’d prefer to keep the lock up if possible. I was going to run a stand alone controller on it. The car will be 99 percent weekend street car. I just don’t want something that basically free revs until it hits the stall speed. I figured a heads cam ls1, 3600, and 323s will run decent with fairly good driveabliy if I could find a quality converter with lock up. Hughes makes a th350c just never ran anything other than Yank.
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Old Oct 13, 2019 | 12:02 PM
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Originally Posted by VandykeT/A
I’d prefer to keep the lock up if possible. I was going to run a stand alone controller on it. The car will be 99 percent weekend street car. I just don’t want something that basically free revs until it hits the stall speed. I figured a heads cam ls1, 3600, and 323s will run decent with fairly good driveabliy if I could find a quality converter with lock up. Hughes makes a th350c just never ran anything other than Yank.
What do you mean free revs until it hits the stall speed?
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Old Oct 13, 2019 | 03:20 PM
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I don’t want a really loose 3600. I’ve seen some converters that slip like hell until they get close to stall speed. The Yank 3600s drove almost stock under normal driving until going up hill.
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Old Oct 13, 2019 | 04:02 PM
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Circle D, BTE, Coan, Many of them can make you what you need and a well built efficient converter will drive nice on the street and still have stall at the correct speed.
Have one built for you rather than buy one off the shelf, Or at least call for a recommendation.

Last edited by LLLosingit; Oct 15, 2019 at 09:52 AM.
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Old Oct 14, 2019 | 07:43 AM
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Originally Posted by LLLosingit
Circle D, BTE, Coan, Many of them can make you what you need and a well built efficient converter will driver nice on the street and still have stall at the correct speed.
Have one built for you rather than buy one off the shelf, Or at least call for a recommendation.
Are you sure @LLLosingit ??
This is a pretty unique conveter...th350c means a th350 with provision for a lockup torque converter. Not terribly common.
Last I knew (things might have changed) Circle D did not make th350c converters...are you sure they do?
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Old Oct 14, 2019 | 09:50 AM
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Originally Posted by MaroonMonsterLS1
Are you sure @LLLosingit ??
This is a pretty unique conveter...th350c means a th350 with provision for a lockup torque converter. Not terribly common.
Last I knew (things might have changed) Circle D did not make th350c converters...are you sure they do?
They may not have one on the shelf but I don't know why they can't make one for him after all many aftermarket converters are built from OEM cores.
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Old Oct 15, 2019 | 07:25 AM
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We've done quite a few of these, nothing to them converter wise really. I can do any custom stall setup just like the rest of the 9.5" converters we have.
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Old Oct 15, 2019 | 07:45 AM
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Welllll....looks like I'm going to finally have a use for the goofy th350c cores I have on the shelf.
I'll find a hot rod guy that wan't to keep it simple but could use a couple mpg for his show car.
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Old Oct 15, 2019 | 09:08 AM
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I’m not really concerned with mpg as Much as am melting it down with a loose converter and airplane gears cruising at 55 lol
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Old Oct 15, 2019 | 09:25 AM
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If FTI says they can build you one...I would be getting on the phone right now.
They do awesome work
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Old Oct 15, 2019 | 05:12 PM
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Originally Posted by MaroonMonsterLS1
Welllll....looks like I'm going to finally have a use for the goofy th350c cores I have on the shelf.
I'll find a hot rod guy that wan't to keep it simple but could use a couple mpg for his show car.
O man! you kept some of those lock-up 350s?

Wow, I think those were some of the very first things I scrapped a very long time ago.
I never thought anyone would want one...
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Old Oct 16, 2019 | 06:59 AM
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I didn't think so either...but I'm a bit of a hoarder
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Old Oct 16, 2019 | 02:52 PM
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Originally Posted by MaroonMonsterLS1
I didn't think so either...but I'm a bit of a hoarder
I mean you do still have them... which means no one has asked for one yet.
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Old Oct 16, 2019 | 03:27 PM
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Typically the guys that want a th350c are just better suited with a different unit lol
but you're prettymuch right...for every 20 th400/4l80/glide guys I get...I get one th350 guy...and if I get 20 th350 guys probably only one of them would even know a th350c ever even existed
So it certainly isn't a hot item haha
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Old Oct 17, 2019 | 05:55 PM
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I bought a T56. Hell with it lol.
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