6PCS LS Water Pump Bolts Kit and 2PCS LS Thermostat Bolts.The thermostat bolt kit is suitable for all general Chevrolet 1997-2014 LS series engines.
Compatible with ALL LS Series Engines 1997-2014 LS1, LS2, LS3, LS6, LS7, LS9, GM Vortec 4.8L 5.3L 6.0L 6.2L.
Heavy duty, high strength, grade 8.8 bolts,Zinc coated for long lasting corrosion protection and prevents. Water pump kit is made of galvanized steel, which has high strength and rust corrosion resistance and protects your screws from being stuck