Heater core delete??

Just noticed my heater is dripping slightly on floor mat today. Now my question. Can I by pass the heater core by connecting the 2 hoses at the firewall in engine compartment? This would only be for a while until I can get the core repaired or replaced. Maybe permanent since it is never driven in cold weather. Would this cause any over heating issues by eliminating?? This is on a 66 Dodge dart 273 engine.

Opinions are greatly appreciated. Thanks.