Survivor 1970 LS6 /L78 Valve Cover ???

[CamarosRus]

My top picture shows what I think are 1970 LS6 / L78 Chrome Valve Covers.
The Left Cover on Top Picture Does have the FLAT Area on Rear Outside Corner

The 2nd and 3rd pics show similar valve covers but the Driver/Left side only has
TWO 12V wire clip & Pass/Right side has NO 12V wire clips

NO Flat area on Left Side, Rear Corner
NO Drippers on these bottom two covers

[CamarosRus]

Wanting to ID bottom two valve covers, bottom two pics

NO Flat Rear Corner on Drivers side
NO Drippers
NO 12 V Wire Clips on Right Cover
Drivers/Left Cover has TWO wire Clips on Upper edge