Amazing how thin the cylinder walls are, between cylinders. I'm sure some magical engineering was done to prevent issues with heat and blown head gaskets. Looks like a groove was added to help keep the gasket in place.
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2014 M6 Gran Coupe-Alpine White/Blk
2015 740i Sapphire Blk/Blk
2018 Tahoe RST 6.2
2019 Porsche 911 Turbo 991.2
Last edited by RiverRunner; 09-26-2013 at 05:25 PM..
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