I rebuilt my motor with GE sleeves, Je pistons eagle rods. When it was stock b16 it use to take forever to heatup and the thermo needle would stop about 2 lines below the normal point. Since I have rebuilt my motor my car warms up much faster but never passes the bottom thermo symbol on guage. I also upgraded to an aluminum radiator. Is the quicker warm up due the aluminum radiator or GE sleeves and has anyone else had this problem.