D5 Round Port NOS Hemi Cylinder Heads & Keith Black D5 Intake Mopar Dodge. This listing is for a Pair of NOS D5 Round Port Cylinder Heads and D5 Round Port Keith Black Intake. These round port heads are very rare and I have only ever seen one other round port intake. This is a very unique and rare setup for your car to make it stand apart. They ran D5 in some of the early to late 70s pro-stock cars. Heads are brand new from chrysler. This is some of the rarest of the rarest. This item has been kept in our indoor storage. POSTAL SERVICE, FED EX, UPS.…