#engine_block__cylinder_block__block  a metal casting containing the cylinders and cooling ducts of an engine; "the engine had to be replaced because the block was cracked"
  supertype:  cast.copy__casting  object formed by a mold
  part of:  internal-combustion_engine  reciprocating_engine
  part:  piston_chamber__cylinder  a chamber within which piston moves
     part:  intake_valve  a valve that controls the flow of fluid through an intake

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