Early or Late 1986?
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2nd Gear
Joined: Jan 2021
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Early or Late 1986?
I'm doing a bit of a tune up on my 1986. As I was looking to purchase spark plugs, they were categorized as up to early-1986 and late-1986 or after. How do I know if my 1986 is early or late? The sticker inside the door indicates that it was manufactured 08/85. Thank you,
Team Owner
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From: Athens AL
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8/85 should have been Early production.
However its the heads that give it away, 4 bolts around the perimeter of the valve cover indicate iron heads and early. 4 bolts down the center of the valve cover indicate aluminum late.
However its the heads that give it away, 4 bolts around the perimeter of the valve cover indicate iron heads and early. 4 bolts down the center of the valve cover indicate aluminum late.
Thread Starter
2nd Gear
Joined: Jan 2021
Posts: 2
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Just checked, mine is iron heads with the 1/2 inch thread plugs. So early. Thanks a bunch for the quick response to my question. I'm a first time corvette owner so your knowledge and insights are very much appreciated and I expect I'll be asking more questions as time goes by. Thanks again,
