fire ring 6.7
 

can you fire ring a 6.7 and will it hold up for daily driving

You mean O-ring?

im not sure u hear the term fire ring and the term o ring i need to make mine stronger what can i do

In the vernacular, "O-ring" describes machining circular grooves in the cylinder head around each combustion chamber's roof to accept a wire for partial imbedment (although copper is a common wire material used for SI engines, diesels should use a material such as 316SS or Inconel for longevity). The wire protrusion is designed to seal on either the head gasket's fire ring, or on the deck itself when the fire ring is water-jetted out of the HG on some applications.

"Fire ring" denotes an additional matching groove machined into the block, so the wire ring is clamped into both upper & lower grooves.

O-ringing has generally proven to be more reliable in CRs for a variety of reasons.

i heard o ring was not possible on a 6.7

Well, the 6.7L bore is significantly larger, so space becomes an issue... there isn't a lot of meat between the cylinders on a 5.9L

supposedly there is one place working on this dont know who just word of mouth ask compcowboy he will know