Found a little time to get the pcs out of the 617a, and machine the head of the 616 to accept them. They fit nicely, need to check piston clearance yet. Did ream out the burn holes a little also, .010

Valves are in. The exhaust valves from a 617a have a differant seat angle, so had to re cut the valve face to match the head.

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1977 240D turbo