Hi,

Funny, I just posted basically the same question but exactly opposite. I don't know what kind of engine you are working with. I am working with late model small block Chevy engines. The knock sensors are located in what used to be the block drain plug holes in the lower side of the block on both sides. They were ment to be in the block engine coolant so as to better pick up valve knocking, or pinging sounds caused by spark knock. It is typically transmitted better through the engine coolant. I am trying to find out if the will work properly if mounted solid in the block. Looks as though we may have answered both questions here.

What kind of engine are you working on?

Ed