I did manage to track a few of the casting numbers down but it just got more confusing from there, It seems to be a FE series engine but there are no indicators of that such as 352 cast into the block and after some more cleaning I found 28756 stamped into the block face just below the #1 piston. I thought it was a 352 at first but the timing cover is wrong and no markings indicating that.Also on the back of the block the only thing there is a big letter L and EDC cat into it.