Reproduction of the original and correct ribbed style heater hoses designed for use with various 1958-72 Chevrolet models as listed. Each heater hose is manufactured to correct factory specifications offering the original ribbed appearance. Includes 4-1/2 feet of 3/4 hose and 4-1/2 feet of 5/8 hose. Will completely replace the essential hoses required for your heater assembly to work properly. For use with small block or big block applications.