Does anyone know if i have to change the headstud after loosening the stud (the 10 long bolts in the engine)? My friend says you have to once u loosen them, and I just want to be sure. Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chineseflyrice &raquo;</TD></TR><TR><TD CLASS="quote">Does anyone know if i have to change the headstud after loosening the stud (the 10 long bolts in the engine)? My friend says you have to once u loosen them, and I just want to be sure. Thanks</TD></TR></TABLE>

Its good practice to change those bolts when you remove them...Because initially when they are torqued down they are stretched...If you dont change it you run the risk of the head not sealing properly

 

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https://honda-tech.com/zerothread?id=1798816

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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SMSP &raquo;</TD></TR><TR><TD CLASS="quote">

Whenever you place a bolt/stud in tension you will be stretching the fastener. The amount of stretch (elongation) is a function of (tension, diameter, thread pitch, material, lubrication, thread finish, etc). As long as the stress (Tension/Area) applied is less than the material's yield strength then the material is said to have been in a state of elastic deformation, that is it will return to it's actual shape or in this case length when the tension is removed. Once the material is taken above it's yield stress then it enters into plastic defromation and when the tension is released it will not return to it's original shape or length.</TD></TR></TABLE>

I reused my stock GSR head bolts multiple times (5+) and had no issues at all.