Mishimoto MMHOSE-VET-97BL Chevrolet C5 Corvette/Z06 Silicone Radiator Hose Kit, 1997&ndash;2004, Blue Direct fit for the 19942004 Chevrolet C5 Corvette/Z06 INNER DIAMETER: Hose 1: 1.26, Hose 2: 1.50 & 1.26 OUTER DIAMETER: Hose 1: 1.65, Hose 2: 1.89 & 1.65 High grade silicone and heat-resistant embedded fibers feature max temp of 330F Mishimoto Lifetime Warranty