my chiltins says tighten all head bolts starting in center and working towards end first to 37 then 45 then 52 then 59 loosten all head bolts 2or 3 turns (i didnt loosen mine) , repeat steps 1 thru 4 , i think i torqued mine to 90 ,lower intake chiltins says torque all to 8 then 11, i torqued mine to about 30 or 35 , upper intake torque to 8 then 15 then 24 , again i think i torqued mine tighter about 30 or 35 , rods are 31 to 36 i never had my rods off yet i think the guy that posted above was looking at regular 3.8 not sc