Our 3-ply reinforced silicone heater hose emits great flexibility and abrasion resistance, capable of withstanding temperatures of up to 180C. These thermostat bypass hoses are best suited for use on 351 Windsor engines while the slightly shorter BPH1 is better suited for 289 / 302 Windsor with the shorter deck height. Check out our 1/2 heater hose with a 5/8 flare PFESHH1316BK which are perfect to use on XR to XY V8

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