NICE, EARLY PAIR OF SMALL BLOCK CHEVY CAL CUSTOM ALUMINUM VALVE COVERS #40-2000 MOUNTING HOLES ARE STRAIGHT ACROSS. THESE ARE UNTOUCHED SURVIVORS! NO CRACKS, NO REPAIRS, NO CHIPPED FINNS, NO CORROSION. NICE PATINA & READY TO INSTALL. THESE FIT 283,302,307,327  BUYER MUST PAY IN FULL WITHIN 24 HOURS OF AUCTIONS END.