Stock heater vs After market

Original factory box will easily keep you toasty warm and fog free all winter long, as my first ‘67 Dart did for six Maine winters back in the early seventies when these were normal every day cars. These old cars take three to four miles to reach full operating temperature, and don’t warm up to blow heat as quickly as modern engines.

Just replace with used box, but take the time to clean it out, perhaps replace heater core if at all suspect, and rebuild it with kit from Detroit Muscle. Vent duct and bushing can be head from Dante’s Mopar.

I a few years ago I rebuilt my current ’67 ragtop Dart’s heater box, and it keeps that drafty old heap nice and warm down to 10 degrees, and perhaps colder I can’t say as it rare that I drive her in winter.

http://detroitmuscletechnologies.com/

http://www.dantesparts.com/partsforsale.html