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  #1  
Old 05-22-2001, 08:30 PM
Steve_Uzi Steve_Uzi is offline
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C8AE-H 360/390 heads.... are they good ones?

Hello All,

I have a chance to pickup a set of C8AE-H 360/390 heads. What is the specs on them? are they good heads?

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Old 05-23-2001, 12:44 AM
FE427TP FE427TP is offline
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C8AE-H 360/390 heads.... are they good ones?

yeah, they are good, they are small port emissions heads supposedly good for 450-500 horsepower, have them rebuilt with hardened valve seats and Cobra Jet valves, have the bowl opened to match the new valve seats and you have a excellent set of heads.
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Old 05-23-2001, 07:50 AM
Steve_Uzi Steve_Uzi is offline
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C8AE-H 360/390 heads.... are they good ones?

I heard that some older 66-69 390 heads had different bolt pattern for the Exhuast manifold/Headers? Is this True? and if so, can this be determined by the casting #?

Thanks

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Old 05-23-2001, 08:50 AM
FE427TP FE427TP is offline
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C8AE-H 360/390 heads.... are they good ones?

>I heard that some older 66-69
>390 heads had different bolt
>pattern for the Exhuast manifold/Headers?
>Is this True? and if
>so, can this be determined
>by the casting #?



For the most part, no, this head has both bolt patterns, the vertical and a diagonal. both can be made to work in your truck, diagonal was for smaller engine bays in mustangs and fairlanes.
Vertical is MUCH more common http://members.aol.com/FE427TP/FE14.jpg



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Old 05-24-2001, 11:37 AM
PetesPonies PetesPonies is offline
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C8AE-H 360/390 heads.... are they good ones?

Only heads with more than 8 exhaust mounting holes are 428 CobraJet heads with 16 holes, and 390 GT heads with 14 holes. There were some very early 68 427 heads which are basically the same as a 390 GT head which also had 14 holes.
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  #6  
Old 05-24-2001, 12:28 PM
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C8AE-H 360/390 heads.... are they good ones?

Even the early 428CJ heads had 14 holes too. I didnít believe it until I saw them in my friendís Shelby, the original owner. The exhaust manifolds were more like the GT instead of CJ.

Hey TP, you gotta find out the story behind those dual bolt holes on the outer uppers. Looks like the heads are thermactor but canít tell the port height. So it could be 14 bolt heads that were drilled on the center two lower and the outer two upper -OR- they could be 16 bolt heads that were drilled on the outer two upper.

Barry

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Old 05-24-2001, 06:56 PM
FE427TP FE427TP is offline
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C8AE-H 360/390 heads.... are they good ones?


>Hey TP, you gotta find out
>the story behind those dual
>bolt holes on the outer
>uppers. Looks like the
>heads are thermactor but canít
>tell the port height.
>So it could be 14
>bolt heads that were drilled
>on the center two lower
>and the outer two upper
>-OR- they could be 16
>bolt heads that were drilled
>on the outer two upper.
>
>
>Barry


I know they are C8AE-H heads, and they were listed as 390GT heads, I saw them as I was walking around at a swap meet and took a picture. THey do have the holes on the top of the exhaust port for emissions stuff and that's all I know about them
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Old 05-25-2001, 05:32 AM
PetesPonies PetesPonies is offline
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C8AE-H 360/390 heads.... are they good ones?

No you are wrong. The GT500KR cars are the only ones with a 428CJ. The standard GT500 cars had 428PI which had a standard 390GT head and 390GT exhaust manifolds. All KRs had a 428CJ with 16 holes heads and CJ exhaust manifolds. These cars were not available until after April 1, 1968 when the 428 wasa released. There were a bit over 2000 cars produced. Slightly more than half became Shebly GT500KR and less than half stayed as Mustang GTs with the 428CK; called 68 1/2 GTs. This info is accurate.

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Old 05-25-2001, 03:07 PM
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C8AE-H 360/390 heads.... are they good ones?

>No you are wrong.

Jeez Pete, could you be a little more tackful, you hurt my feelings. I don't disagree with you, just telling it like I saw it. This was an early '69 Shelby GT500. The heads had the tall CJ style intakes, 14 bolt exhaust. Wish I had paid more attention to the casting number way back then. The block had the "chicken scratch A" on the back, not the "C". The exhaust system looked all original from the flange on back. Engine had never been apart until then, threw a rod at 6700RPM.

Barry
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Old 05-26-2001, 11:35 AM
PetesPonies PetesPonies is offline
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C8AE-H 360/390 heads.... are they good ones?

Just the facts ma'am, just the facts-
69 is not early for a CJ engine or head. 428 CJ cam out April 1, 1968 in 68 1/2 Mustangs. I have 2 in my shop right now. One is mine, another is a customers. My engine has May 1968 heads. These are 16 bolts heads. ALL CJ heads are 16 bolts. Certainly any 69 428 with 14 bolt heads has the wrong heads on them, period. There were no 14 bolt CJ heads, only 14 bolts 390 GT, 428 PI and 68 427 hydraulic lifter engines. Not meaning to flame, just getting the facts straight. )

>>No you are wrong.
>
>Jeez Pete, could you be a
>little more tackful, you hurt
>my feelings.
>I don't disagree with you,
>just telling it like I
>saw it. This was
>an early '69 Shelby GT500.
> The heads had the
>tall CJ style intakes, 14
>bolt exhaust. Wish I
>had paid more attention to
>the casting number way back
>then. The block had
>the "chicken scratch A" on
>the back, not the "C".
> The exhaust system looked
>all original from the flange
>on back. Engine had
>never been apart until then,
>threw a rod at 6700RPM.
>
>
>Barry



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Old 05-26-2001, 01:10 PM
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C8AE-H 360/390 heads.... are they good ones?

Thanks Pete! What I meant by an early '69 is that this engine had the IU crank in it (well, what was left of it). That was the first crank used in the CJs from introduction up to 11-13-68. Yes, I am aware of the "facts" and appreciate getting them straight too but I know what I saw. This was back in '72 and it had only 14,000 miles on it. We also had a '66 Fairlane 390 GTA at the time and its intake ports were a lot smaller then the Shelby's. So what were they? Guess this will be another FE mystery to me. Your CJ heads are 16 bolt and dated May '68, can't get much earlier than that. That's good info to know, thanks!

Barry

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Old 05-26-2001, 01:47 PM
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C8AE-H 360/390 heads.... are they good ones?

Oh yeah I forgot to ask, what are the casting numbers on your CJ heads? Would appreciate it for a database I've been building of verified numbers. Thanks!

Barry

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  #13  
Old 05-27-2001, 11:24 AM
PetesPonies PetesPonies is offline
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C8AE-H 360/390 heads.... are they good ones?

My heads and the car I am restoring both are May 68 heads. Both have the same casting number, the typical CJ number:C8OE-H. Only heads with 14 bolt made for an engine larger than a 390 was the infamous 427 hydraulic engine. I've seen one set of these myseld from a complete 68 427 engine. Perhaps, somehow, the engine you saw had a set of these on them??
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Old 05-27-2001, 09:21 PM
dinosaurfan dinosaurfan is offline
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C8AE-H 360/390 heads.... are they good ones?

Guys, you keep talking about 8 and 14 and sixteen bolt heads, those in the picture look like they are 18 bolt heads to me.... what gives ? I have never seen that before. Are they rare FE heads or common stuff with a few extra holes drilled and tapped ? DF
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Old 05-27-2001, 11:48 PM
FE427TP FE427TP is offline
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C8AE-H 360/390 heads.... are they good ones?

[font size="1" color="#FF0000"]LAST EDITED ON 27-May-01 AT 11:50 PM (EST)[/font][p]my guess is converted heads, I have pics of some other C8AE-H heads from E-bay that only have the lowered bolts on the top of the outside exhaust ports
http://ford-trucks.com/dcforum/User_files/3b11ca85779f9793.jpg

P.S. these are C8AE-H 390 GT heads with the emissions holes on the tops of the ports just like the painted ones further up the page
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Old 05-27-2001, 11:48 PM
 
 
 
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