yes they'll work fine, Fumblin - guy I know here had a 42 that'd had a late 40's/early50's junk yard heater put in it many years ago and it looked like it belonged

Bill

Moved over to the Passing Lane

"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