OP, what do your guides look like? From the pics, it looks like the radial position was not being controlled i.e. when closing, it appears the valves never hit in the same place twice. I would check the guides. It's possible the side load imparted by the rocker may have worn the guides causing the valves to walk around radially and beat up the seats.
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Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned
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