Yes, really. Have a bit of a read about it- the blocks were sand-cast, the then head of BMW motorsport famously used a walking stick to remove sand from key areas where the block was splitting.
@Dammit started
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Yes, really. Have a bit of a read about it- the blocks were sand-cast, the then head of BMW motorsport famously used a walking stick to remove sand from key areas where the block was splitting.