BMW makes their cylinder heads from aluminum. While this is beneficial for many reason, they do not react well to overheating. Especially prevalent on older BMW engines, and over-temp situation has been known to cause the head to warp. Turner Motorsport carries Genuine BMW replacement heads and parts to make your next rebuild a success.
When replacing a head gasket or performing maintenance that requires the removal of the head, it is advised to replace the cylinder head bolts as they are torque to yield bolts that allow for one time use only.
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