turbo or non ? i would add change the middle 3 headbolts for ea81 head studs they fitt and give you a 1/2 more thread in block strech the cam caier oil relef valve springs to bring up oil preshure and probly safe to reuse pistons unless to baldly scratched. And use the subaru gasket set is far better and headgaskets have extra renforcments and comes with lots of good extra stuff piston pin clips valve retairs oil plugs ext and if from subaru at least you know its right and fits
Those studs fit...no ****?
If you pull this motor down clean the pistons in solvent and measure the ring side gap. Factory is about .0015 when new. At freezing you still have about .0005 so things can still move. That produces great ring seal.
.003 max is factory recommendation. IMO, this is one of the most important measurements in a motor.
If that aftermarket piston kit is any good, that's an attractive price. Pistons, pins, rings.
IMO, the Felpro gaskets are a good choice only if your deck and head surface is ugly. The Tefflon used makes the head-gasket thicker, so it drops the CR a bit.
I torqued a factory head gasket down, removed and measured..first torque it compressed .002.
Took it apart and torqued it down again. Took it apart and it shrunk another .001.
In lieu of a hot re torque, IMO, just do a cold re torque before you install the cam cases. Oh, I let it sit 24 hrs in between during those tests.
Just some thoughts.