Small Block in an early A - how much room for a fan?

Back in about '75/76 somewhere, I had this oil burning slanty in a 65 Valiant wagon. and I had this junkyard 340 short, with a missing cam, and
I had a top-end and cam from a 69 Satellite 318,
and an early 273 complete with a 904.
With very little effort I installed that big-bore-318/904 with the front end off that 273, and it's engine brackets; and Smooth as butter it slid right in there. I had a lil entertainment with the gas pedal, and she needed fenderwell headers. But the cooling system was a bolt-together deal, with the 273 pump..
IIRC I reused the slanty direct drive 4-blade fan, and the slanty rad.
That was a hot lil column shift combo, until the 273 automatic packed it in.
Gave it to my lil brother about a year before he got his license, in about '77/78.
The deal was, that he would put a different slanty into it, with the original 904, and I would get back whatever was left over. I still got that junk, lol.