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Heads - 1986 Coupe

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Old 06-20-2013, 12:20 PM
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Corvettewaldon
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Default Heads - 1986 Coupe
I just recently rescued/purchased a 86 coupe. How can I tell if it has cast iron or aluminum heads. Trying to get supplied together to do tune up and not sure. No owners manual. Thanks
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Old 06-20-2013, 12:30 PM
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toptechx6
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Old 06-20-2013, 12:51 PM
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Corvette Chris
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Valve covers.
Perimeter bolt = cast iron
Center bolt = aluminum
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Old 06-20-2013, 01:46 PM
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nutz4c4
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Old 06-20-2013, 04:21 PM
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pmihaltian
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Originally Posted by Corvettewaldon
I just recently rescued/purchased a 86 coupe. How can I tell if it has cast iron or aluminum heads. Trying to get supplied together to do tune up and not sure. No owners manual. Thanks
Here are the tune-up specs for you....
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C4 - Tuneup Specs.pdf (15.7 KB, 433 views)
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