original Corvette valve covers
 

Original unrestored 58 59 Corvette valve covers no cracks or welds $175 https://www.yenko.net/ubbthreads/pics...2-imag0430.jpg
https://www.yenko.net/ubbthreads/pics...3-imag0428.jpg
https://www.yenko.net/ubbthreads/pics...4-imag0429.jpg

Re: original Corvette valve covers
 

Bump

Re: original Corvette valve covers
 

They are earlier. Fit 55 to 57. Not sure of exact year. They have differences in ribs. But are staggered bolt pattern

Re: original Corvette valve covers
 

56 and early 57 had 9 fins. From then on it was 7 fins. Staggered bolt pattern ended sometime in early 1959 when Chevrolet added the cooling passages in the spark plug area of the heads and changed to the straight across pattern. There was also a change in length of one head bolt per head at the same time. So, covers will bolt to 1955 heads (although 55's never came with cast aluminum covers) and up to and including early 1959 heads.

Re: original Corvette valve covers
 

I stand corrected. Thanks for the insight