Tom, Ron and KK,
Thanks for your help. KK I can't find ANY numbesr stamped on the pass. side of the block anywhere even with a lift and a good flashlight.
The numbers on the drivers side are
12 DIF stamped under the head at the front of the block (upside down)
and,
E3
G8 (I think) stamped just above the
oil pan (also upside down)
Thanks for the help.