Quite sure A12's used this cooler.
Bob I believe your pictured cooler was only used on 70-71 Hemis in E and B-bodies, and of course AAR/TA's.
I have some unrelated original drawing prints dated over a year ahead of actual implementation.
Not saying some 69 Hemi B-body didn't get coolers.
If so I'd really like to see a picture of one.