If you've always wondered how engine blocks were manufactured, then check out this How it's Made segment. We have to admit, the process is a lot more complex then we had initially thought. Video after the break.
The cylinder block or engine block is a machined casting (or sometimes an assembly of modules) containing cylindrically bored holes for the pistons of a multi-cylinder reciprocating internal combustion engine, or for a similarly constructed device such as a pump.
[via Wiki]
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[Source: Tech Blog]
