are mc engine flywheel bolts of the stretch variety?

[Livolsi, Stephane]

It has been suggested to me that the flywheel bolts on my 86 5ktq might be
of the not reuseable stretch variety.
As I will be doing my clutch very soon, I would like to know for sure.
Haynes doesn't say anything about it and I surfed on some of the listers
websites and couldn't find anything either.

So, can someone tell me, for sure, if they are stretch bolts or not?

Thanks

Stephane