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Old 09-30-2007, 08:30 PM
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68 390 heads

I need some help I thinking about buying a set of 68 390 Ford Heads casting #C8AE-H ----I BEEN TOLD THEY ARE gt hEADS----CAN ANYONE HERE HELP ME OUT.Need to know are they good heads --cc sizes, valve,intake and exhaust ,and anything you can tell me about them

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Old 09-30-2007, 08:38 PM
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If you have the rest of the number, you should be able to decifer them HERE......

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Old 10-02-2007, 05:02 PM
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The GT heads are drilled for the exhaust bolt pattern to be bolted up at an angle. I think they have 4 holes drilled in each exhaust port opening. They are no better than the run of the mill 390 head. They are set up that way so they can be used in the tighter engine bays.

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Old 10-02-2007, 05:29 PM
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390 cylinder heads are VERY poor flowing and performing heads.
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Old 10-02-2007, 07:12 PM
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They are just a standard run of the mill 352, 360, 390 head. The only difference between them and a GT head is the exhaust bolt pattern.
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