1973 Dart 340 Sport K Member to 340 Engine Mount Bolts!

Here’s the best advice I can offer check your local junkyards for any v8 small block powered,
Aspen
Volare
Diplomat
GranFury
Mirada
Magnum
Of 1980 to 85 model years that looks unmodified these models use the bolts you need. The most important thing to remember is to back the nut off don’t turn the bolts it ruins them, it’s a crappy job but probably the only way you will get some. Good luck.
Sinister.