5.3oilchugger

I have a gen 4 6.0 with L92 heads that I'm checking over.

I lapped the valves lightly until I got full contact with the seats. The seat contact width seems to be excessive. The seat contact width is .094" on the exhaust and .082" on the intake. The valve face is about the same as the seats. Should I run it or do I need to have seats replaced?

FFDP

iTrader: (2)

Doesn't look bad to me.

turboal1

The wider the seat the longer it lasts. The Nascar
boys run wide seats on there heads. not sure
of the size.

5.3oilchugger

I researched it a bit and sounds like a wider seat will keep the valves cooler but could possibly build carbon due to a cooler valve. I have a heavy right foot so I'm not worried about carbon. The other thing I read was that a wider seat could cause sealing issues as the area per spring pressure. I'm installing a performance cam and heavier valve springs so I think they'll seal just fine. Thanks!