need some fan info please

measuring the stock 63 and 65 slant darts, its figures a bout 2 1/2 in from rad core to front of fan. my tape is fat and hard to measure exactly but that's probably pretty close. oem fan and rad.

lke those other guys said, test v at every where under eng compartment and see whats what.

I have thought about might need a alum, rad for the b b 67 bel1 i'm piddling with, BUT i'm old school, don't want alum rad IF I can't cool it with the oem fan, .... shroud will no doubt be a problem, BUT I personnaly don't want friggin lectric fans!!!!!! I ain't an Az boy racer!!!