Each pump is fully disassembled at our facility, after which its individual components are inspected and cleaned in a heated, dual-frequency ultrasonic cleaner. Finally, our expert technicians pre-lube all critical assembly points with a leak-resistant moly lubricant and reassemble the pieces to GM blueprint specs. The completed pumps feature a corrosion-resistant coating and bear a unique serial number corresponding to their batch, build date, and assembly tech. No other LS1/LS2 oil pump offers this combination of features-at any price!