I had Vortec heads on my 350 that had the PVC hole on the Driver side and the Oil Filler hole on the passenger side.

I got tired of the center bolts and opted for the kit to change the valve covers to the traditional type which (of course) had the holes reversed requiring some re-plumbing but I am very happy with them. They are GM certified polished aluminum cast with the Chevrolet letters in red.


1950 Chevrolet 1/2-Ton 3100
"Ol' Blue"
In the Stovebolt Gallery
"Making a "Super 3100" - story and pix in HiPo forum
More pix of my old truck
My book: Spirit Wind