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C4 Corvettes, 1984 - 1996
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Heads - 1986 Coupe

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Heads - 1986 Coupe

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Jun 20, 2013 | 12:20 PM

#1

Corvettewaldon

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From: Keego Harbor MI

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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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Jun 20, 2013 | 12:30 PM

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toptechx6

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Magnet

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Jun 20, 2013 | 12:51 PM

#3

Corvette Chris

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Valve covers.
Perimeter bolt = cast iron
Center bolt = aluminum

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Jun 20, 2013 | 01:46 PM

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nutz4c4

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Quote:

Originally Posted by toptechx6

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Old

Jun 20, 2013 | 04:21 PM

#5

pmihaltian

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From: Charlotte NC

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Quote:

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....

Attached Images

C4 - Tuneup Specs.pdf (15.7 KB, 494 views)

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