Up for sale is a set of Chevy cylinder heads with the part number 3890462. These heads are suitable for 302, 327, and 350 engines with the camel hump design of the small block. Dated E6 6 and E3 6. They are made of cast iron and have an unfinished finish. These heads are performance parts that are vintage and made in the United States by GM. The OEM part numbers are 3890462. These heads have been cleaned and magnufluxed. There is one hole that needs to be heli coiled.