What is this flywheel from?

This flywheel came in the trunk of the car that I have. I have a flywheel for my 360, so I don't need this one, just trying to figure out what it's for...

It has 144 teeth...the surface measures 13.75in and a cross measurement of the pressure plate bolt holes measures 12.50 inches.

Numbers stamped into it are 005229 and 9015

So....what's it for?