torque converter help

hi, I got a converter from a friend looks never to be used 9 1/2 in. he called it a J type, has the numbers stamped in the flat part next to the converter hub A004176x , anyone have any info on this? thanks

J converter was a turbo action 17509J your number is not a turbo actin number not sure who's number it is,might be same style as turbo action same size

Is there a B & M stamped anywhere? If I recall the part number stamped on it back then started with 10 then three digits I think.

The J was invented and released by B & M, Turbo Action copied the J designation much later.

The original O69J Mopar race converters were made by B&M, Paul Forte at T/A replicated them later beginning in 1971 or so
they were, both brands, really good drag race converters