Coolant leak (timing chain cover?)

That is a casting line.

The 4 long water pump bolt threads need to be sealed with Aviation Sealer as they go into the water jacket.

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Also the lower 2 bolts on the driver's side where power steering bracket mounts to block.

Extream Warning, do not use too long of bolts on the 2 lower driver's front bolts or you can punch them through #1 cylinder wall and destroy your block.

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