Removed the cylinder heads today. The heads are E7TE heads. The pistons indicate a re-manufactured block. The part number stamped on the pistons is 273AP .040. That translates to Sealed Power cast pistons.
So, unless the machine shop has a some wild voodoo, that block/engine is unusable. Options are to re-sleeve if the block is good or discard.
The heads might be useful. The rockers are in excellent shape and can be used on the other set of E7TE heads.
