53.......
You need to get a 55 2nd series thru 67 V8,
Or a 63 thru 67 6 Cyl truck cast iron bell housing
There is no crossmember issue,53 and older would have that prob wink
There,s gonna be an issue between the steering box and the left exhaust manifold eek
Your gonna hafta fab up or buy a ready made front motor mount set up,just for starters
Good Luck.