Looks suspiciously like marine/ reverse rotation to me, what say you?

No Rob the block is the same. The difference is the heads/ intake/ pump and maybe the cam drive........may be gear drive not sure

Been told the pistons are not only low compression but VERY heavy. "been told....."

Thanks for the correction, Del. Hopefully it's an industrial or motorhome engine and not reverse rotation.

Hope you are feeling better. Will call you either Friday or Saturday.