all brazilian dodges use 318 small block.
the most common setup I note is 3 speed, shift on column.
All brazilian magnuns are 4 speed floor shift. They used to be a top model, with hydraulic steering and air conditioner.
Dodge guys do not like gas conversion. I don't notice any rodder or car collector that enjoy conversion.
But, a few years ago, natural gas used to be much cheaper than gas. Then, a lot of people converted theirs cars. Most of them professional drivers (as taxi).