THIS IS A NEW REPRODUCTION 1955 1956 1957 CHEVROLET 7 POUND RADIATOR CAP WITH THE CORRECT ORIGINAL AC MARKINGS. IT IS STRONGLY NOT RECOMMENDED TO RUN A HIGHER POUND RATING ON A ORIGINAL RADIATOR OR IT MAY BLOW THE TANKS AND IT CAN CAUSE LEAKS IN THE ORIGINAL HEATER SYSTEMS. SKU# 3145
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