Are these cylinder head bolts Torque to Yield?

[rfishi]

98 Explorer with V8 5.0

People are saying the head bolts are torque to yield.

But these look like normal bolts:

i just really don't want to have to wait for new bolts to arrive in the mail. Can I really not reuse these?

 

[C420sailor]

I don’t know if a way to visually determine.

That said, I believe the 5.0s use TTY head bolts.

 

[rfishi]

I'll just go ahead and order them online to be safe. Wouldn't want to do this job again just from a bad bolt

 

[410Fortune]

Yes 5.0 head bolts are torque to yield and must be replaced every time

After final torque you rotate the
Bolt 90 degrees this is the stretching part and makes the bolt a one time use, tty fastener

 

[RangerX]

The advice you’re getting in your other thread from 410, Josh, and Turdle is top level, you can trust it.

 

[C420sailor]

My advice is bottom tier, at best