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  1. Install the lower intake manifold to the engine. Apply sealer, GM P/N 1052080 or equivalent, to the lower intake manifold bolts.


  2. Install the lower intake manifold bolts. Tighten the bolts in three steps:
  3. Tighten
  4. Tighten the bolts on the first sequence to 8 N·m (71 lb in).
  5. Tighten the bolts on the second sequence to 12 N·m (106 lb in).
  6. Tighten the bolts on the final sequence to 15 N·m (11 lb ft).
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Q: What is the torque specifications for the intake manifold on a 1997 Chevrolet vortec 350?
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