Engine knock signal transmissive element

An engine knock monitoring system comprising:

• an engine block including an engine block body;
• a cylinder wall defining at least a portion of a combustion chamber;
• a space between a top of the cylinder wall and a top of the engine block body;
• an engine knock sensor mounted to the engine block;
• and
• a pressure pulse transmissive element in the space and disposed in contact with an outside surface of the cylinder wall and an opposite inside surface of the engine block body.

A system for an engine comprising:

• an open deck design engine block including:
• an engine block body,
• a cavity in the engine block body,
• a cylinder wall disposed within the cavity coupled at a first side thereof to a cavity base and extending from the cavity base to a second side, the cylinder wall defining at least part of a combustion chamber on an inside thereof,
• a space between the cylinder wall and the second side of the engine block body;
• an engine knock sensor coupled with the engine block body;
• and
• a knock impact transmissive block secured in the space.