Parts Need to swap a L92 6.2 into 2001 Silverado 5.3.

[keniff]

your L92 is a Gen IV block. has a 58x tooth count. get the 58x to 24x converter 275.00 shipped. your knock sensors have to be moved to the side of the block. youll need an adapter harness to run the newer TB in an older truck. change the flex plate to the 60E. your old oil pressure sensor has to be changed bc the valley cover has a Boss on the back for the oil sensor.

[flattopwill]

youll need an adapter harness to run the newer TB in an older truck.

I think this is what you need.....
LS2, LS7, L76 90mm throttle body to GM electronic throttle LS1 truck and LS1 Holden adapter harness