From Original Post-
have another set 6090 d heads. i have looked in teds listings and other info can not find eather on lists.
If CANADIAN FORD, the cross-over chart won't be of much use as most engine parts/assemblies stayed in CAN and/or were also shipped overseas, such as AU.
6090 is the ENGINEERING BASIC PN and should have a prefix immediately if front of it to I.D. it (example B9AE 6090-x).
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