Re: Two stroke choice
GT5 has lousy hardware, just like the rest of them. it might be a little better, but when i took mine off and replaced them, the screw slots still deformed from the soft metal.
the head studs are 8mm with a pretty good quality acorn nut and doubled up washers, and looks like there's plenty of threads in them so they won't bottom out.
replacing all the hardware is cheap if you find a good industrial fastener place. i pay about 3 bucks for everything. it'd cost you 15 at ACE, if they had it.