428. Not so sure,Please help!

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Sep 10, 2004 | 04:56 PM

raptor660

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428. Not so sure,Please help!

Hello,everyone,

I need some help,Please

I just bought a 428 motor and i'm not really sure if its a cobra jet.
This is the number that I found
intake manifold-C80E 9425C
time timing cover-G8AE-6059-B
oil pan-C7AE 6675 A
Armonic balancer-C8AE A1
crank-1UB
oil filter adapter-C8AE 6881 A
manifold-C8AE-9430-A
rod- C6AE
Head- 9E17 C8AE 4 DIF
I also saw this number on the head 9M12
I was told this motor has been on a barn for 20+ years
Thank you for your help in advanced.

Sep 10, 2004 | 05:22 PM

Post Fiend

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From: Brea CA

Well, it looks more like a 428 Police Interceptor.

The heads and exhaust manifolds are regular 428 items, you don't see too many of the C8AE heads anymore. The dates for the heads are a little far apart, one is May 17, '69 and the other is Dec. 12, '69 (a '70 production head). I can't remember if the A1 balancer is a CJ or the A2, we went round and round on this a long time ago. Intake is a cast iron CJ/PI, I take it you verified the bore is at least 4.13"

Sep 10, 2004 | 05:37 PM

Post Fiend

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From: Brea CA

Oh, and Scott has a nice site here:

http://www.428cobrajet.com/

Check out the component identification link.

Sep 10, 2004 | 08:10 PM

gt6plus

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CJ motor will have a C or CX scratched in the block on the back behind the flexplate.. the passenger or P.I. motor will have an "A" scratched in..

Sep 10, 2004 | 08:39 PM

Post Fiend

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From: Brea CA

That's true but my friend's '69 GT500 came from the factory with an "A" block, thanks Ford for ripping him off!

Also, a later block should have a parital VIN stamped as described in that site.

Sep 10, 2004 | 09:08 PM

gt6plus

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Quote:

Originally Posted by BB

That's true but my friend's '69 GT500 came from the factory with an "A" block, thanks Ford for ripping him off!

Also, a later block should have a parital VIN stamped as described in that site.

Of course, I forgot to mention, there ARE exceptions to these rules. Blocks were substituted when needed for production reasons.... sounds like what happened to your buddy.. does he have a partial vin on his??