I still want to install a knock sensor on my car (it does ping at low elev if I don't back the timing off) and determined a while back that the standard GM knock sensor does not fit the coolant drain plugs in the Buick 455. So I was thinking of alternative locations that may work and be relevant.
My first thought was to maybe drill a hole and tap it on an accessory bracket, but I'm thinking that wouldn't be a very good location (if it is tell me! )
But while furthing thinking about it, the LS engines have put the sensors in the lifter valley (through a cover plate), and was thinking "what if" I drilled an tapped a spot on the rear of my intake? I won't take a drill to the block for fear of permanent damage. But an aluminum intake... If I swap cam's I'll be pulling the intake and could drill and tap it then, and if something goes wrong get it welded back up. And that then also begs the question would the knock sensor still work as intended?
Proposed location above the A, it's dead space under there.
My last thought is while looking up the LS setup, I noticed the LS knock sensors had a finer thread on them than the older '80's-'90's GM's. Any one build/pull an LS engine recently and have an un-usued knock sensor that I could have?