I've been collecting part numbers for different Knock Sensors and ESC modules. One day when I collect them all I will do some testing to see if I can rate these from say least noise to trigger to most noise to trigger. If you know of one not listed please add it to the thread and I will keep the list updated.

ESC Module Knock Sensor Motor
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16052391 ....10456287 ....5.0L V8
16052401 ....10456288 ....5.7L V8
16128261 ....10456288 ....5.7L V8
16065711 ....10456288 ....4.3L V6 and 5.7L V8
16128251 ....10456288 ....4.3L V6 and 5.7L V8
16131171 ....10456288 ....7.4L V8 I never saw one on a Big Block?