??? About 243 heads
#2
I think the only difference is in the (exhaust?) valves, they're hollow stem/sodium filled on the LS6s but not on the LS2 versions, I think.
#6
They are an excellent upgrade. We can do an assembled set with non sodium valves for $525.00 per pair. We also offer a set CNC ported 243's with stock valves and Patriot Gold springs for $1095.00.