340 with odd numbers

pauly v.100 said
revised block id #GW340P33810351

aren't the pan rail numbers and the upper deck numbers supposed to be the same?
thanks again, -pauly

Nope

The pan rail is the vin for the car it's out of, 1exxxxxx 1= 1971 E = Los Angeles

The front of block is year, plant, size, fuel assembly date and days unit number

G = 1971
W = Windsor plant
340
P premium fuel
3381 = Oct 30, 1970 Build date
0351 = 351st built that day