Help Identifying

D = 1968
W = Windsor plant
340 = C.I.
2251 = September 26 1967 build date
0409 = 409 unit that day
FA40196 could be a machine shop # from a rebuild

Man you guys are geniuses!

Thanks a bunch! I
IIRC the \6 has one dimension that is 19 vs the SB V8 which is 22

Yeah I looked up radiators and stock 340's had 22in radiators 440's and some high performance 340's had 26's. (From radiator company webpage if incorrect me if I am wrong).

I just had looked up the part/serial # on the radiator and it said it was from a 225 /6 car.