Hello I'm new to this forum. I have a 626 1987 model 1600 cc and a small pick up truck 1200cc 1980. My changed in my trucky the head gasket and i would like to know with witch torque should i tighten the head screws. Somenone told me 4 kgr but i think it is not enough. Notice that it is a aluminium engine. Thanks anuway.