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Old 02-09-2004, 06:54 PM
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Valve Cover Adapters

Does anyone know of any adapters available so I can use my early, staggered bolt Corvette valve covers on the later style, straight accross heads?

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Old 02-10-2004, 04:20 AM
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Last edited by roys63; 02-15-2004 at 06:23 AM.
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Old 02-10-2004, 04:59 AM
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GM Performance Parts has them, but they ain't cheap.

Vince
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Old 02-10-2004, 05:51 AM
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Quote:
Originally posted by 302/Z28
GM Performance Parts has them, but they ain't cheap.

Vince
Aren't they in the range of $100-$160 depending were you get them?
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Old 02-10-2004, 06:17 AM
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Being the cheapa$$ that I am, I would spend a couple hours in the shop and build my own. All it would take is a piece of 1/4 inch plate, a package of jigsaw or sawzall blades and a hand full of machine screws.


You could just use a valve cover as a pattern to trace the shape onto the steel. Cut out the desired shape leaving room for the double holes. Drill and counter sink the 1/4 inch holes that will hold the newly made spacer to the head. Drill and tap the narrow holes for the old style covers for 1/4 inch cap screws. Use flat head machine screws to hold the spacer down and install the valve covers with 1/4 inch x 1/2 inch long cap screws. I think 1/2 inch would work with valve cover hold downs. Of course it will take two pairs of gaskets.

I have never seen any of the adapters, but I can not imagine them being much different that the above.

Edit: After some more thought, I think that you could permanently install the spacers with RTV silicon which would make them less noticable.

Later,

Chris

Last edited by TurboS10; 02-10-2004 at 07:47 AM.
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Old 02-10-2004, 06:58 AM
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I've only seen the centerbolt to old style adapters, and they're about $100 new. If you could find a cheaper set at a swap meet, you could probably adapt from them.

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