[JSeery]

I know you had the block steamed, but did anyone really work on the rear area around the cylinders? There can be an unbelievable amount of stuff in there. I took some long drill bits, welding rod, metal coat hangers, etc. and worked on it several times and each time more crude came out. Mostly left over casting sand and casting wire. It just keeps coming and coming out!! This was after this block had been previously rebuilt and the block cleaned and run for years. I took the engine apart for another rebuild and had the block tanked and sprayed. The sand and wire is really packed in there and years and years of rust and stuff in the coolant system just packs on top of it. You might be surprised at the amount that can come out of the back of these blocks.