Seller notes

This auction is for a good used cylinder head assembly removed from a 2017 M3 with 47 k miles. Comes complete with everything as seen on the pictures. It has micro cracks between the spark plug hole and the exhaust valves, but the head has been pressure tested and did not show any signs of leaks. We have disassembled yens of S55 engines and every one over 30k miles has these cracks in the head, but we have never seen one that failed a pressure test....

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