318 gurus/historians

The VIN on the block A116065 and what looks like the top of an 8 in front of the A.
The numbers on the front of the block under the drivers head are 2 letters 318 02120081.
The head casting numbers are 4027596.
596 castings are 77-83 360 heads also used on 318 HP engines from 1981-1983. Factory pistons had a 1.74 compression hight.