gear head motors ATK false advertizement, useless warranty grand prairer Texas

sold me a remanufactered motor with damaged head gasket during assembly. had to repair at my cost, after only three hours run time on motor. they inspected gasket and said my fault due to ill regular combustion.what a catch 22 made up word to cover their a*s. never seen a properly installed head gasket fail under its on normal comprission and firing cycly. do not tell you motors they sail, are poorly assembled in MEXICO. After several attempts to resovle come to the conclusion that i am dealing with dishonest crooks, and as supervieor told me, my fault for useing them, and i agree completly