lower intake is 132 lb's upper intake is 89 lb
25 ft./lbs.
40 FT. LBS
11 Ft/ Lbs + 30 Degrees
35 Ft. Lbs
The 350 cubic inch Chevrolet intake manifold bolts have a torque specification of Haiti pounds psi. The bolts should be torqued at 40 pound intervals.
35 ft. lbs. on the intake, and 70 ft. lbs. on the flywheel.
The 2000 Chevy Impala 3.4 liter engine rocker arm bolt torque specification is 45 pounds. The rocker arm bolts should be torqued in 15 pound intervals.
I believe the torque is figured on the bolt size, not the material. you are using steel bolts ,therefore the torque for an intake bolt on a sm. block is 20 ft. lbs.
35 Ft Lbs 35 Ft Lbs
The 2006 Impala has 3 different motor options, on the 3.5 the map sensor is located on the rear(left side of motor) of the upper intake manifold under the black bracket that the spark plug wires are routed over. You have to remove the two upper intake manifold bolts to remove it. The bolts have a torque spec of 18 lb ft, and a small amount of thread locker is recommended by GM after reinstalling them.
torque wrench
the sequence is the two center bolts on each side, the work your way outwards