HPS high temperature 3-ply reinforced silicone radiator + heater hose kit (part number 57-1277) replaces 2008 Chevy Corvette LS3 6.2L V8 (Except ZR1) stock OEM rubber lower and upper radiator hoses, heater coolant hoses with high-heat resistance material which meets or exceeds OE specifications (Maximum temperature rating: 350F