Those Darn Casting Numbers!

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Mar 27, 2002 | 12:46 PM

Pedal2metal

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From: Ranger

Those Darn Casting Numbers!

I recently picked up a 73 Ford Truck. It had a recent rebuilt 390 Engine. I must say, it runs EXCELLENT. However, after browsing hundreds of articles here on casting numbers for the heads and blocks, I seem to be having a little trouble identifying mine. I have C7AE-A on my right head and C8AE-H on my left head. I am guessing they are 1967 and 1968...But the big question is under my oil filter. I have 7A23....huh? Is this right? I see what looks like screw heads stamped into the block then 7A23. I also see a large "V" above it on the block. I am also very surprised on how good it runs. Don't I have a mismatch on my heads as far as valve sizes etc?

Any help here would greatly be appreciated.

Thank you

Thouroughly confused yet satisfied!

Mar 27, 2002 | 01:34 PM

Pedal2metal

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From: Ranger

Those Darn Casting Numbers!

uh....I answered one part of my question. I found a C6ME behind and below my alternator. Now for the head question. Are they equivelant in specs?

Mar 27, 2002 | 02:46 PM

Post Fiend

Joined: Feb 2000

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From: Brea CA

Those Darn Casting Numbers!

Hey welcome to FTE! Sounds like you’re in the same boat as this poster:

https://www.ford-trucks.com/dcforum/DCForumID7/628.html

Your C8AE-H heads and the D2TE-AA heads in this link are identical as far as sizes.

Barry

Mar 27, 2002 | 06:23 PM

Pedal2metal

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From: Ranger

Those Darn Casting Numbers!

Thank you Barry,
Are the C7AE heads and the C8AE heads a definate mismatch? or will they get along fine in the sandbox?

Thanks again,

Mar 27, 2002 | 06:50 PM

Post Fiend

Joined: Feb 2000

Posts: 5,130

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From: Brea CA

Those Darn Casting Numbers!

Yeah it’s a definite mismatch but it won’t kill you. Drive it around all you like until you’re ready to spend some money on it. Then maybe get another C8AE head or a pair of D2TE’s.

Barry