C 2500 Suburban 2WD V8-454 7.4L VIN J SFI (1998)
Intake Manifold: Specifications
Lower Intake Manifold Torque and Sequence
1. Tighten the lower intake manifold bolts (1-8) a first pass in sequence to 30 Nm (22 ft. lbs.).
2. Tighten the lower intake manifold bolts (1-8) a final pass in sequence to 40 Nm (30 ft. lbs.).
Apply sealer GM P/N 12345493 or equivalent to a minimum of eight threads of the upper intake manifold bolts.
