Originally Posted by turbo20psi
Cracking between the valves seem to be common on these trucks.Have to agree with 0210,but while the head is off I would do fire rings from FIRE RING HEAD GASKET KITS, 12 AND 24 VALVE CUMMINS ENGINES - Haisley Machine
not to much more money and maybe the same in machining.Weather you are going to leave it stock (If you are on this site it is hard to do) or go all out you are covered.
to the site also...
I had the same thing, cracks between the valves. A buddy of mine built a new engine so I tried buy his old head and same thing cracks between the valves.
I agree with turbo20psi. Go ahead and fire ring it. I talked with Craig at Big Power Diesel in Palmdale, CA and he talked me into fire ringing over o-ringing. Do a google search to find his number and give him a call. He has a wealth of knowalge on this.