GM 5.3 (factory engine) - lifter failure @ 94,787 miles.
GM 5.3 (Jasper rebuild #1) - lifter failure @ 97,197 miles (replaced after only 2,410 miles)
GM 5.3 (Jasper rebuild #2) - coolant in oil @ 101,011 miles (replaced after only 3,814 miles)
GM 5.3 (Jasper rebuild #3) - still in truck...