How can i tell if a motor is LS2 or LS1

OK im looking for LS2 coils i have seen a few motors sitting in crates at my tech school and need to know how to tell if its a LS2 or LS1 or even if its a just a truck 5.3 or 6.0. Need LS2 coils for my LTcc conversion kit for my LT1. and if anyone knows are the truck 6.0 the same motor and coils as a GTO LS2 6.0 Thanks kyle

It'll have a different intake manifold and also be fly by wire throttlebody

well the manfold is there but not throtle body. what are other ways and will the 6.0 truck coils the same as the GTO ls2 6.0