Z Whip LS Water Pump Bolt Kit. Compatible with all 1998-2014 GM Chevy LS Series Engines (Gen 3 & 4 Small block chevy) Comes with 6ea Flange Bolts for the Water pump to Engine Block and 2ea Flange Bolts for the Thermostat housing to the Water Pump. Bolts are Clear Zinc Coated to prevent rusting and corrosion. Torque Spec For Water Pump Bolts Is 22 Ft-Lb, Thermostat Bolts Is 11 Ft-Lb. When you purchase Z Whip Parts you will always get the highest quality for your vehicle that you rightfully deserve. We are an AS9100D and ISO 9001:2015 Certified Manufacturer that produces aerospace parts for The Boeing Aircraft Company and The US Military. Parts we produce fly at 30,000 feet where failure is not an option. We put the same quality into every part we produce.