1998 CHEVY TRUCK 2500 5.7 ENGINE INTAKE MANIFOLD TORQUE SPEC

SOURCE: Torque Spec for '99 Chevy C1500 5.7L engine lower intake manifold

On 5.7L engines, install the bolts and torque in sequence as follows:

1. Step 1: 71 inch lbs. (8 Nm).
2. Step 2: 106 inch lbs. (12 Nm).
3. Step 3: 11 ft. lbs. (15 Nm).

Posted on Mar 14, 2009

ZJ Limited

• 17970 Answers

SOURCE: What is the torque spes

For 2004 Chevrolet Truck Silverado 2500HD 4WD 6.0L SFI 8cyl, the intake manifold, throttle body, fuel injection rail, and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the manifold as a complete assembly.

Intake manifold bolts. Tighten intake manifold bolts first pass in sequence to 44 inch lbs. (5 Nm). Tighten intake manifold bolts final pass in sequence to 89 inch lbs. (10 Nm).




Fig. Lower intake manifold bolt tightening sequence - 4.8L, 5.3L and 6.0L engines

Hope this helps.

Posted on Mar 15, 2011

Colin Stickland

• 22485 Answers

SOURCE: Intake Manifold tightening sequence plus torque specs

start in the middle and alternate left to right and the torque on a alloy manifold will be around 14lbs or a nip with a 3/8th drive rachet ,any water passages use contact adhesive around the water ports .

Posted on May 26, 2012

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