Where is the VIN stamped on a '70 340 block?

FW340P31970349 .... Here's what the manual says....

FW = Power train (what's this?) F =1970 W= Windsor engine plant
340 = obviously CI
P = designates low compression (confused here) P= Premium Fuel
3197 = 10,000 day calendar (confused here as well)
0349 = engine built that day

Anyone help me out here ? I don't see where this stamping matches the VIN?

radiator is stamped 38086 and on the right top is 2998.978 Correct radiator # for your car

HTH