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  #1 (permalink)  
Old 06-17-2002, 06:30 PM
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Cool Help.. FE Identification

Ok.. Long story short.. I have a 427 I am looking at. It is advertised as a 1966 top oiler.. My intel has top oilers in 63-65 but not again until 1968...

Does the enclosed photos look like a SO??? The heads advertised are High Rise heads.. Impressions???



http://www.clubcobra.com/photopost/i...=2248&size=big

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Old 06-17-2002, 06:44 PM
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Michael
You should try asking these guys http://www.network54.com/Hide/Forum/74182
Hope this helps Mike
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Old 06-17-2002, 06:44 PM
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Mike:

You're right about the '66 and top-oiler. Latter half of '65 and later, all 427s were SOs. What are the casting numbers on the heads and the block?

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Old 06-17-2002, 06:49 PM
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Question

See this is where it gets weird.. There are not specific part numbers.. typical ford #'s I am told it had 66-427 cast into it as well as 352 in the front left (typical) It also has a 28-427 and a 9A17.. If that is suppose to be the date code it indicates Jan. 17, 1969.. NOT. I am told it also has a 12-DIF cast into the block as well as HI-PO on the back. The heads have 427 HR casting #'s.. CA4E-6090C. It could be a service block from 1966 cast late in 65.. but would it have a side oiler bulge? Does that look like a side oiler bulge in the bottom photo?? The 9A17 is weird to me.. If it was 6A17 it would make sense..
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Old 06-17-2002, 06:57 PM
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on the right side of the block there should be a number on it, on mine it's C4AE and that stands for a 1964 year. Dose your's have a number like that?
Mike
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Old 06-17-2002, 07:08 PM
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Mike,

Yes sort of.. In your case it refers to a 1964 top oiler.. As the dates went on it gets more confusing, for most 427's what you say is true.. But C6AE's were 65-66 and a 428 C7AE went from 67-70...

This is more complicated.. Early police interceptors as well as side oilers did not always get tagged that way.
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Old 06-17-2002, 07:12 PM
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can you take a pic. of the back of the block?
Mike
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Old 06-17-2002, 07:20 PM
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there is a thread you can follow in one of my posts.. It doesn't show much.. The engine is in NY
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Old 06-17-2002, 07:29 PM
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Here is the

back..http://www.clubcobra.com/photopost/i...=2249&size=big
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Old 06-17-2002, 07:48 PM
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Well i'm going to say it's service block that can be drilled into a sideoiler, but thats just my .02
Mike
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Old 06-17-2002, 08:00 PM
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It doesn't really matter SO or CO.. I just know it cannot be a 66 CO.. So it's either a 66 SO or a 65 CO.. Or something else.. It is cross bolted, it is a 427 and I am getting 427 HR heads all for pretty cheap..

Do the center oilers all have the side bulge?? There ia a photo link in the first post of this thread.
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Old 06-17-2002, 08:03 PM
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Sounds and looks like a marine engine.
It was common to put high riser heads on boat motors.
Holman-Moody did it alot.
I have seen several engines in this configuration on ebay over the last couple of years.

Good luck.

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Old 06-17-2002, 08:05 PM
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Is that a good thing???
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Old 06-17-2002, 08:43 PM
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Mike:

The easiest way to dintinguish a SO from CO is look above the cross bolts on the bottom of the block. Right above them, but below the screw-in freeze plugs (another sign of a SO, but can be faked) will be 3 screw-in oil gallery plugs. If you have these, you have a SO.

On the heads, HR and TP have no heat transfer to intake manifold. Every other FE head will have the riser.

In your first picture, the intake ports in the head do not look tall enough to be HRs. C3AE-6090-K is the first iteration of HR head. The second is C4AE-6090-F, which was used up till early '65. Make sure you look at the last digit (K, or F), as that is the change code and further helps identify the part. HR intake ports measure 2.78 x 1.38. MRs measure 2.06 x 1.38, and LRs are 2.34 x 1.34

Supposedly, SOs were already in production by March '65.

After going back and looking at your 2nd pic, I would say it is a SO. Look at the cam bearing bore--you do not have the oil pressure relief valve, like a CO would. And, look in the lower left, there is your oil-relief valve (like a SO). Further, the galleries are undrilled, which is what you might find on a service block or '68, with provision for hydraulics. Undrilled would further point to '65 - '67 engine.

As far as the heads, I would ask them to measure the intake ports for you over the phone.
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Old 06-17-2002, 10:52 PM
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sounds like a winner.. thanks... all for less than turk paid for his last 427 bare block..
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Old 06-17-2002, 11:08 PM
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sounds like a winner.. thanks... all for less than turk paid for his last 427 bare block..
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Old 06-17-2002, 11:27 PM
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Looks like you have a '66 marine 427. These were common in Chris-Crafts and the likes. The block is cast with side oiler cores but as you already know, it is only machined as a center oiler. The heads are 390, as well as the cast iron crank and small rods. The only good thing about a marine 427 is the bare block.
Even if you wanted to go through the time and expense to drill it for side oiling, all of these blocks I have seen have had a big machining groove cut into the side oiler rib on the LS of the block.
It looks like they did it when they (Ford) machined the motor mount pads. Unless you are running Le Mans or Talladega, the side oiler block is only really useful for bragging rights.
HTH,
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Old 06-19-2002, 05:42 PM
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I don't see the rib you are referring to in these photo's.. I do see the rib.. but not the machining groove. How did you ID the heads.. I am given a part # of C4AE-6090C.. as far as port sizes the 390 hi po motors and the 427 low rise motors were the same.. I don't doubt your guru-ness Mike but how did you come to that conclusion?
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Old 06-19-2002, 06:17 PM
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Mike:

I pulled this from my earlier post:

"In your first picture, the intake ports in the head do not look tall enough to be HRs. C3AE-6090-K is the first iteration of HR head. The second is C4AE-6090-F, which was used up till early '65. Make sure you look at the last digit (K, or F), as that is the change code and further helps identify the part. HR intake ports measure 2.78 x 1.38. MRs measure 2.06 x 1.38, and LRs are 2.34 x 1.34 "

The change code should be K or F for the 427 HR. I think C4AE-6090C would be a standard 390 head.
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Old 06-19-2002, 06:25 PM
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Yea.. I see bummer.. the medium risers are smaller than the low risers? wow..

I have LR heads now.. I may have to sit this deal out.. Bill where do you guys get this valuable data?

Thanks!
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