today me and the motors master measured the ve head. the dowels on the head are 13,4 mm in the sr20det are 14,7mm
the dowels will be machined 13,4 -> 14,7mm
the head bolt holes will be machined 12mm -> 13mm (the arp threads are 12mm)
my engine master tells that it will be better to make it tight, because if the head will have 0,4 mm lift with the dowel and the block will have 0,4 mm with the dowel - it will result a 0,8 mm total shift -> so it can result a big failure.
Thanks. I have decided to use 0,08" (2.0mm) cometic mls gasket. So my theoretical compression ratio will be 9,3->8,7.