Yes under one of the two middle intake ports there is a D1Ze cast in.Under the other middle intake port there is a larger DA underlined.The only other casting mark i found was a circle marked 1 3 5 7 9.[besides a couple of "4"s with a dot and a F inside a circle.]The pushrod guideplates have...
Hello.I have a set of 351 Cleveland 4 bbl heads that I need to identify.The casting # is D1ZE.They have pushrod guideplates and screw in rocker arm studs.They still have Ford script valves and the ports etc are unmolested.According to several websites,it sounds like I might have a set of 1971...
