225 6 to 273 8 swap

Hi guys and gals...how about some help! Will a 273 V8 from a 68 Plymouth Valiant drop in a 65 Dart? Is a K member and motor mount the same? Also, will this motor bolt up to auto trans in the 65 Dart with a 225 6? Found this forum a week ago and really enjoying!

K members in the early As are the same whether slant or V8. Motor mounts are different. Slant transmission bell is completely different than for a V8.