i know u cant re-use CVH headbolts as they stretch so i wldnt tbh.

torque settings for CVH are:

Stage1 25nm 18lb/ft
stage2 55nm 40lb/ft
stage3 tighten by a further 90degrees
stage4 tighten by another 90 degrees

(by stages it means do the head bolts in the correct order, then 2nd time, 3rd time, 4th time )