727 poly engine transmission

Ouch! Think I opened Pandora's box when I resurrected this thread! All I wanted to know was if an LA (other than the '64-'66 273) or Magnum engine would bolt up to a '66 A engine (318 poly) automatic transmission. Got my answer, so it's all good.
And that is good, and all that matters. and I drive what I work on.
55' Desoto with Chrysler spitfire engine installed
40 Plymouth coupe
55 Savoy Flathead
56 Savoy with first A engine 277 cubic inch.
Disc brakes,vintage A/C, single wire alternator(GM)
Balanced and blueprinted rock solid 180 HP engine.
original early 70's 15x6 Cragers
Everyday Driver.