LMK is you have a complete set with the correct bolts

 

try ebay, the lt1 corvettes use the same lt4 valve covers. look under corvette valve covers and try to find a set that is not listed as lt1 or lt4 and you can get a deal. if it says lt1 or lt4 they will bring 150 to 225$. any way thats how i got mine for less than 75$ but it took about 3 months to find them , good luck!