What number am I going to use to see if the block is for my car?

Is it the last part of the vin? or something else

thanks
Josh

1969 and up is on the right side, below the motor mount where the pan/block mate. There is a machined pad that has the numbers stamped in.

Also, if you look next to the distributor on the machined pad there, you should see some #'s and date codes.

Would help if you mentioned the model/year.

1968, the numbers were stamped on the back of the block where the trans/block mate.

My car is a 68, I just wasnt sure which number I was matching up to

VIN May not be stamped.. If it is look here...

my 68 383 isnt stamped, the julian date is right on for my spd, however but its stamped d 383 and its a 6 cast block...who knows with a 68 depends on how the guy felt on the line that day

thanks guys i appreciate the info, so I'm clear its either the vin or nothing

68 was the first year that a vin would be required. In a recent post I was told after Jan 1 1968 all should have been stamped. In this same post it was also said some plants started earlier than others. Of the three 68 RR's I recently have had all were stamped and all were St Louis cars, but only one had a spd earlier than 1-1-68.

Thanks mine was an auto trans, which I think I may have found across the state, that still needs verified

rrunner, I sent you a pm just now about those fenders we talked about, I still want em