[vitamin c]

I cant easily get the block or head dates codes, but I can faintly see the block casting number in a picture I've dug up it "appears" to be 1203. The Pontiac paperwork shows the car shipped to the dealer 5-10-74. Unfortunately the cast eagle crank in this block, installed by the prior owner, failed the thrust bearing test while doing a cam change. I'm having the motor gone through with a new forged crank, rods, etc..leaving no stone unturned.