Set of rare hard to come by original Chevrolet Corvette heads from 1957. The part number of the heads is 3731539 are dated D-17 D18-7. These look to be a matching set but cannot be sure of this. If you are looking for a set of original heads to restore your original Corvette these heads are the ones for you. The heads are as shown in photos shall need refurbishing. The heads will be shipped via Uship personal courier. Shipping cost depends on distance from Central, Illinois, with a range of $250-$500, depending on distance. Please contact me for a personalized quote. Buy with confidence -- check out our feedback!