I have got the BAM head on to Lainey's Mk4 and I am ready to torque + part-turn the bolts. I bought Victor Reinz bolts this time, VW previously, and they are both the same manufacturer. The Reinz instructions are: With 'lightly oiled threads' 1 - 40Nm 2 - 60Nm 3 - + 90deg 4 - + 90deg The VW Manual does not state the thread condition and misses out the 60Nm stage. So. If one uses the VW data, and with dry threads, the initial pre-load, at 40Nm, would be approx 10kN. At 60Nm, with lightly oiled threads, the pre-load will approx. 21kN. When I removed the APY head I was surprised how easily the old bolts loosened! I am sure that the original bolts which I removed last April were tighter!? So, This time I shall use the Reinz figures.