New from Drake, this 1967-1970 Mustang 390/428 Aluminum Water Neck is made from pressure die cast Aluminum. Without threaded port Hole for smog, this is a modified version of our Concours correct 1968-1970 390-428 part # EG-1771. Although not Concours correct for a 68-70 it is a great way to help clean up your engine when not running factory smog systems.