You will want to list the over-all gear ratio.
The 4 cylinder transmissions are worth a tad bit more than a V-8 transmission! (never seen V-8 torque)
The 4 cylinder lower units are a dime/dozen.
Conversely, the 1.61:1 V-8 lower units are worth much more than the 2.15:1 4 cylinder lower units.
Sad to say, that many of the V-8 transmissions are by now in need of main drive gear bearings. I see this often.
List what you have, and it may help sell this!
Also, this is going to be bumped from main page view next unrelated post.
Why not post this in the Volvo Penta section?