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These valve covers are on special because of cosmetic blemishes.
One cover has been machined for a breather hole. It has a lot of porosity on the surface. especially in the corners. An example is shown below.
The other cover in this set has a very thin fin above the C. There is also a lot of porosity on this cover. The largest porosity is in the polish area above the Co of the script.
A hole for PCV can be added to the second cover. This must be ordered over the phone. There would be a machining charge for this and it must be ordered over the phone. Link for PDF on PCV and breather holes.
This gasket is available and recommended: Gaskets for Small Block Chevy Engine Valve Covers
New mounting bolts are included.
Be sure to read this CHECKLIST before ordering.
For reference, see our regular Chevy Small Block, 1959 to 1986, CORVETTE Script and Fins, Polish, PML Part Number 11026.
This special should fit and function like a regular part.
This is sold as-is and cannot be returned.
Top down view of valve covers.
Inside of valve covers.
The breather hole on first valve cover with porosity around the surface.
Example of a large amount of porosity on corner of first valve cover.
The second valve cover has a very thin fin above the script and porosity in that area.
Note that there are porosity on other areas of the second valve cover.
