if u put a 307 or a 350 in ur cutty then the biggest deal u are going to have to do is change the frame mounts for the engine ( u can get them from a delta or anything with the 307 or 350 in it) now u can also go with a 455, it fits right in also with the small block frame mounts. U also haveto put new springs in the front i usally go with the diesel cutlass springs i have done this change over many times so if u have any outher ?'s just email me
