Huh
Is that a Spal Fan ??
If you are cooling a 392 with one I should be able to cool a 440 with one ??

All steel 3800 lbs with me in it 65 Coronet 451 CID Indy 440-1 heads by Dwayne Porter racing heads .
..... 10.31 @ 129.4 mph 1.40 60 ft ALL MOTOR!!!!