Stamped engine numbers

[venomizd93]

I've been reading about engine casting numbers and the last 6 of the VIN stamped close to that on the passenger side near/above the starter, but I can't find anything on the four numbers (rather large) stamped next to the distributor hole. Just curious as to what those mean. I can only read the last three out of four numbers on my block and its 222. I'm sure you engine gurus know what these numbers are.:confused:

[Patrick]

If there are no numbers on your block in the area of the flat near the starter, then you have a service replacement block. The 4 numbers near the distributor display the original standard bore diameter for select fitment of the four cylinders, 1 through 4, for appropriate pistons (within .0002" tolerance) during assembly.