what Lonnie said - piecea cake to drop any small block in a 58, and if you look a bit you'll likely find one that comes with the standard trans bellhousing attached
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics