LB7: Bigger valves?

[02ilduramax]

I seen a while back I thought someone was making bigger intake and exhaust valves for our trucks I was just curious who is running them and has there been any benefit from them in a full race set up aftermarket heads are out of the question as of right now

 

[Chevy1925]

They required a .040 bored block iirc

 

[02ilduramax]

who was selling them? they were not very much bigger didn't know if anyone had run them or had any expirience

 

[duramaxzak]

I have a used set of bigger valves out of a set SoCal stage 2 heads. Head casting were damaged. I would consider selling them and also have the SoCal valve springs and retainers. I’m not sure who makes the valves tho.