Hello Rob, update just for you
Escort RST head gasket - very high quality thick steel core.
Gasket bore size just slightly larger than 82.5mm
I put the new cylinder head on - torqued in 3 steps 20, 40 and 60 ft. Lbs.
I will re torque after a 24 hour period, and once again after engine is run in.
A pain in the ass I guess, but required with head studs.
Crower dual valve springs, valve retainers, and valve spring seats (To hold spring steady at bottom)