DT466 Head Bolts.

[Kevin 007]

Time for liner orings in one of my dt466's (1987 210hp model). The head has never been off before. Question is, can I re-use the head bolts or must they be replaced? I'm having a hard time finding this particular info.
Also, do the head bolts on a 466 require re-torqueing after a while? I do practice re-torqueing head bolts on NTC cummins engines and IH idi's just as a 'midlife" service thing and they almost always take another 1/2-3/4 turn to achieve the torque spec. Then they seem to hold for the remainder of the engines life with no head gasket issues. I'm wanting to practice this on a 466 also as a preventative measure. Anyone have thoughts on that?

 

[Dieselcrawler]

Yes the bolts need to be replaced. They are a TTY bolt. They come in the head gasket kit from IH.

As for a retorque, not required.

 

[Kevin 007]

Ok thanks!

 

[Kevin 007]

Does anyone know if the heads of the 466 engines used in the TD-15 dozers, are compatible with the on highway vehicle 466 engines? Reason I ask is because, I have a fresh 466 head, new guides, valves, seats, seals, magnafluzed; off of a dozer, would like to put that on my 1988 S1900 466 instead of sending the old head off and waiting ages for it to be re-done.
Are there any differences that would not allow me to use that head on my S1900?

 

[Dieselcrawler]

To my knowledge if it's from the same generation engine it should be the same.

 

[Kevin 007]

Thanks.

And one more question about this build. Are the rod bolts requiring a "stretch" beyond their 130lbs torque spec? If so, are there any other fasteners that require a stretch?