F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
Intake Manifold: Specifications
Upper Intake Manifold to Lower Intake Manifold
Stage 1
18 in.lb
Stage 2
89 in.lb
Upper Intake Manifold to Cylinder Heads
Stage 1
18 in.lb
Stage 2
89 in.lb
Throttle Body Fasteners
Stage 1
80 in.lb
Stage 2
Additional 90 degrees