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These valve covers are on special because of cosmetic defects. All polished sand cast aluminum parts have some cosmetic issues and porosity but this set has more than normal so the price is discounted.
One cover has a defect in the lip below the BUICK script, the lip tapers, so it is not straight across. About 3 inches are slanted instead of straight. This area on the lip also has some discoloration. This cover also has a rough area in the casting next to the B and some porosity.
The other cover has a large 1/16th inch porosity hole on the intake manifold side of the cover and a lot of small pinprick size porosity all over.
For reference, see our regular BUICK Nailhead V8, Fins And Vintage Script Valve Covers, PML Part Number 11080-2.
A cork composite gasket is recommended and is available from PML: gasket for PML Buick Nailhead valve covers.
These valve covers can be machined for PCV/breather/oil fill holes. There is a machining charge. Read this Machining PML Buick Nailhead valve covers PDF for more information.
This special should fit and function like a regular part.
These valve covers are sold as-is and cannot be returned.
Top down view of valve covers.
Inside of valve covers.
The lip below the script of first valve cover is slanted and discolored.
Some porosity on first valve cover.
Blemish near B on first valve cover.
Large porosity on back of second valve cover.
Example of porosity all over second valve cover.
