
04-26-2019, 10:14 AM
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CC Member
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Join Date: Jan 2017
Location: Olympia,
WA
Cobra Make, Engine: Fiberfab Classic Motor Cars, 428
Posts: 12
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Not Ranked
Need help identifying heads
Hello all,
I have had these for 30+ years. Got them with the claim that they were 428cj heads.
I am going to build a 428 for my Cobra project and would like to hit the 500+ mark.
Wondering if these heads will help hit the mark or if I should keep saving up for some aluminum heads.
Also would like to know if these truly are CJ heads.
Can't seem to get the casting # photo to upload.
Casting # by spark plug hole - C6AEU
#between valve springs - 6E23
Letters by bolt/spark plug hole - DIF with another "D" near the edge of the head at an angle below the "DIF".
Thanks for your knowledge.
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