273 torque converter

That one is for an LA 360. I think the one for a 5.9 Magnum is an AA242. They say it's for 360 (5.9) Magnum to a 727, but it appears to have both sets of holes. I'm not trying to be argumentative....I just don't want you to put all that mess together and then have to take it back apart if it shakes because of the wrong flex plate. a 5.9 Magnum and an LA 360 are balanced differently even though they are both 360's.