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Discussion Starter · #1 ·
Looking through some heads I have and came across these and I can't find my book for reference.
C8AE-H with a vin or 9R113225 stamped on them
Are they really 428CJ heads?
 

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Standard 1968 390 or 390 GT heads. GT heads have 14 exhaust manifold bolt holes, standard 390 has 8.

428CJ heads have 16 manifold bolt holes.
 
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