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9 FINNED VALVE COVERS

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Old May 8, 2002 | 06:28 PM
  #1  
Mighty Mouse's Avatar
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From: Sault Ste Marie Mi
Default 9 FINNED VALVE COVERS

Can anyone tell me what year these valve covers come off of ? They are aluminum nine finned small block covers with Corvette on them. What are they worth? I have a guy that is willing to sell them to me and I need a base price. Thanks, :cheers:
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Old May 8, 2002 | 06:33 PM
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Default Re: 9 FINNED VALVE COVERS (Mighty Mouse)

Call ZIP and see if they have any used ones then offer the guy half of the price they give ya. They sell em new which would give ya a starting point.
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Old May 8, 2002 | 06:38 PM
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Default Re: 9 FINNED VALVE COVERS (Mighty Mouse)

They came off of L82 and LT1 cars I beleive. I have seen them black as well with the fins showing a light polish.
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Old May 8, 2002 | 08:55 PM
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Default Re: 9 FINNED VALVE COVERS (Mighty Mouse)

You are into C2 territory. I personally would not put them on a C3.

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Old May 8, 2002 | 09:24 PM
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Default Re: 9 FINNED VALVE COVERS (Stingy74)

Woops, I guess I should have read closer. Paul79 is correct.
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Old May 9, 2002 | 12:38 AM
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Default Re: 9 FINNED VALVE COVERS (Stingy74)

They did make some 9 finned, staggered hole valve covers for the 58 and earlier small blocks. I think that they are fairly rare.
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Old May 9, 2002 | 10:09 AM
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Default Re: 9 FINNED VALVE COVERS (DaBo)

I think these are the ones that you are talking about. Only problem is that they have no holes in them

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Old May 9, 2002 | 10:36 AM
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Default Re: 9 FINNED VALVE COVERS (Mighty Mouse)

I assume these covers don't have pcv holes tapped into them. If you get them, you should also get a period-correct intake manifold with the oil fill cap/breather that sits atop a metal tube that that is affixed to the front center of the intake manifold (just forward of the coolant inlet. Gotta vent those crankcase vapors somehow/somewhere.
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Old May 9, 2002 | 03:52 PM
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Default Re: 9 FINNED VALVE COVERS (Mighty Mouse)

These early (C1) covers fit the 283 Corvette heads with staggered bolt holes. Ever look at the gaskets for SB's? thats what the 2 extra holes in the gasket are for. They fit ONLY those heads and will not fit a regular SB head. They are very cool looking though. I've often considered filling in that area on a set of conventional heads to accept bolts and use them. I have a set on my wall, but I have no idea what they are worth. They were a gift 20 yrs ago.

Hans
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Old May 10, 2002 | 06:26 PM
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From: Sault Ste Marie Mi
Default Re: 9 FINNED VALVE COVERS (Mighty Mouse)

dman, thanks for the pic. If my memory serves me right that pic is the one. The only dif being the pic shows 7 fins and this guy says his are 9 fin. I'm gonna have to take another look at them.
Tedh, thanks for the info about the intake and covers breathing. I ASSumed these covers would have holes but now see they may not. I do love this forum. No reason to stay stupid for more than a week with this kind of info available. Thanks guys.
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Old May 10, 2002 | 11:52 PM
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From: Sault Ste Marie Mi
Default Re: 9 FINNED VALVE COVERS (Mighty Mouse)

Here is some info I found while searching the Web for info on 9 fin valve covers. "In 1956 the optional engines had 9 fins on the valve covers. The 9 fin covers would be gradually phased out in 1957 and by 1958 all fined covers had only 7 fins. " I think I just might have to buy them. :D
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