360 in a 65 dart

You don't have to cram it in the rich...it'll fit just fine. You need a V8 steering centerlink, V8 motor mounts, correct oil pan, V8 radiator, ...there was another thread recently about which exhaust manifolds to use and I didn't see where that ended so you can search for that. The V8 swap has been discussed over and over again on here so yo can search that also.

Dave