jorb: I tried everything I can think of to examine this left, rear block area just above the pan line and so far cannot see any numbers. Dennis
Hope we are on the same page.
The location that I mentioned is to the right of the fuel pump.
Front of block area.
Under a ledge. Example:
3703414 Note: The white background where it says ENGINE CASTING NUMBER is covering ledge.
Might be covered in grease/dirt.