How can I tell if the torque converter I have is a factory J converter that was used behind the 340? Are there any distinctive markings? I am fairly certain what I have is a J converter since I have had the engine and transmission since the mid '70's.
340 J converter
- Thread starter duster360
- Start date
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That is a factory high stall but not J or 069J convertor. I don't think they were ever behind a 340. I believe in Hemi race applications. and they were 9 1/2". I believe that to be a 10" or 10 1/2".
Ran a 069J in my 71 Bracket BB Scamp. They are an awesome convertor
You have to be careful. Just because the converter is smaller than the ring gear, doesn't necessarily mean it's a factory high stall. I have seen them both ways. They are almost 100% of the time stamped somewhere on the converter body somehow.
The first criteria for it to be a real 069J is that it will be 9 1/2". Most you'll find are 10 1/2" and larger.
transman
Well-Known Member
It appears to be a modified converter, by someone in the past. Look closely at the ring gear mounting to the body. From the factory the 12" converter used a narrow (about 1/2") ring gear, and the 11" converter used a wide(about 1") ring gear. The 1" ring gear was a one piece unit, not like the one that appears to be a two piece (welded) ring gear. All 340's ran an 11" converter from the factory.
The other thing that makes me think it is not a factory converter is the poor welding job were the two halves are welded, plus I've never seen a factory converter painted.
In any case, if you're going to use this converter, it needs some attention. From the photos, I'd say the hub needs to be replaced(badly scored), and who knows what else inside the unit.
The other thing that makes me think it is not a factory converter is the poor welding job were the two halves are welded, plus I've never seen a factory converter painted.
In any case, if you're going to use this converter, it needs some attention. From the photos, I'd say the hub needs to be replaced(badly scored), and who knows what else inside the unit.
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