Help Identifying Torque Converter

[SpeedThrills]

I'm tearing down my 360 to address a spun bearing problem, and I thought I'd try to figure out what converter I have. (I bought the whole drivetrain used, so it's been a detective game.)

The only markings are these numbers on the crank hub: C300 2601.

It has 3/8" bolt holes. It measures 9 1/2" in diameter. It stalls to about 3200, flashes off the line to about 4000, and recovers to 5000 when I shift at 6000. Car runs 11.90's, weighs 3000 lbs.

It has this flexplate (It has a part number on it): B&M 10236 Chrysler SFI Flexplate 6 Bolt Crank, TF 727 w/ 360 CID While on the subject of the flexplate, this flexplate is for external balance. Is that what the cutout is for? Neither it, or the converter have any weights on them. The engine appears to have been balanced. It has KB 190's in it, and there are grinding (belt sander?) marks on the rods. The crank has different holes drilled in it than another crank I have, if that means anything. No Mallory has been added. It has the stock balancer with the offset weight cast in.

I bought it in 2009, and it had been running for a few years is the best guess the previous owner could make. He didn't build it. I just started using it a couple of years ago.

 

[transman]

I don't know if anybody can tell you much about the converter. Almost all converter (performance)builders decal/paint some form of identification on their products. The company I worked for, stenciled the part number on it, put a decal on it, and most importantly, all performance converters had a serial number stamped into the body of the converter. With the serial number, we could tell what was done to the converter originally, who the original owner was, and what it was being used for, and if it had ever been sent back to us for work, what we did to it. All 360 converters have weights on them from the factory, but when weights are removed, then the B&M flexplates come into use.
Just a thought on my part, while the engine is out, maybe it's a good time to have the converter taken apart for a cleanout and inspection. There have performance converter builders mentioned by others on this board, so I'm sure one of them must be close to you. Not much help I know, but hopefully others can add to this. Good luck.

 

[LO23M8B]

pic

 

[Oldmanmopar]

If you already know the brake stall, Flash stall and recovery what is to learn but the name?

 

[SpeedThrills]

I don't know if anybody can tell you much about the converter. Almost all converter (performance)builders decal/paint some form of identification on their products. The company I worked for, stenciled the part number on it, put a decal on it, and most importantly, all performance converters had a serial number stamped into the body of the converter. With the serial number, we could tell what was done to the converter originally, who the original owner was, and what it was being used for, and if it had ever been sent back to us for work, what we did to it. All 360 converters have weights on them from the factory, but when weights are removed, then the B&M flexplates come into use.
Just a thought on my part, while the engine is out, maybe it's a good time to have the converter taken apart for a cleanout and inspection. There have performance converter builders mentioned by others on this board, so I'm sure one of them must be close to you. Not much help I know, but hopefully others can add to this. Good luck.

No transman, every little bit helps. You nailed the reason I'd like to know who built it- to see if I can find out its history. The only markings on it are in the pic below.

pic

Lol, I thought I did post pics. Should be below.

If you already know the brake stall, Flash stall and recovery what is to learn but the name?

For the reason I mentioned to transman above.

 

[transman]

Unfortun

No transman, every little bit helps. You nailed the reason I'd like to know who built it- to see if I can find out its history. The only markings on it are in the pic below.

Lol, I thought I did post pics. Should be below.

For the reason I mentioned to transman above.
View attachment 1716331080
View attachment 1716331081
View attachment 1716331082

Unfortunately those numbers mean nothing to me, but they probably mean something to whoever built the converter. Perhaps others might be able to help you. I know that I can't say I've ever seen them on a factory core. The converter looks like a nicely done piece, and one would think that they should/could have put their name on it. While the transmission is out, have a look at the pump bushing. The hub looks looks ok, with a little wear(?) on it. But run your finger nail up and down a couple of times to make sure it's smooth. A converter hub should be a smooth as a crank journal. Sometimes, converter builders will have a specific color to paint their converters with to make them stand out from the crowd(marketing 101 ) but black is a very common color. Just for giggles, drain the oil in the converter out, and see if there are any type of foreign materials in it, and if there is, get it taken apart for a good cleaning, and if it has thrust bearings in it, get them replaced. Again, wish I could help you more,

 

[LO23M8B]

Looks like an old Turbo Action.