Pair of BBC aluminum heads. These were used on the COPO ZL-1 and Chevy L-88 motors. These are the 3946074 OEM heads, not aftermarket. One with a 1972 and one with a 1973 date code. They have been polished as shown in the pics. Heads appear to be in great shape. $1000 plus shipping. Shipping cost will be a pass through of whatever FEDEX ground or USPS, whoever is cheaper, charges me.