I need torque specs and sequence 04 Silverado 4.8L

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The 2014 Chevy Spark intake manifold torque sequence and torque specs depend on the engine type. Here are the torque specs and sequence for each engine type:
1.0L Engine:

• Step 1: Tighten the bolts to 44 inch-pounds (5 Nm).
• Step 2: Tighten the bolts to 89 inch-pounds (10 Nm).
• Step 3: Tighten the bolts to 18 lb-ft (25 Nm).

Torque sequence: 8 4 1 5 9 7 3 2 6 10
1.2L Engine:

• Step 1: Tighten the bolts to 44 inch-pounds (5 Nm).
• Step 2: Tighten the bolts to 89 inch-pounds (10 Nm).
• Step 3: Tighten the bolts to 18 lb-ft (25 Nm).

Torque sequence: 8 4 1 5 9 7 3 2 6 10
It's important to follow the torque sequence and torque specs carefully to ensure that the intake manifold is properly secured and sealed. Over-tightening or under-tightening the bolts can cause leaks or damage to the engine.

The torque specification for the cylinder head bolts on a 2014 Chevy Silverado 4.3L V6 engine is as follows:
Step 1: Tighten the cylinder head bolts in sequence to 70 Nm (52 ft-lbs) Step 2: Tighten the cylinder head bolts in sequence to an additional 90 degrees
It's important to note that these torque specifications are for the cylinder head bolts only and not the other fasteners on the engine. It is also important to use the correct tools and torque sequence when tightening the cylinder head bolts, as specified in the vehicle service manual.
It's also important to use new bolts or bolts that are in good condition, if you are reusing old bolts they might have lost some of their strength and torque value, which might lead to problems.
It's important to follow the manufacturer's instructions and if you have any doubts or don't have the right tools, it's best to take your vehicle to a professional mechanic.

Cylinder Head Bolts (First Pass all M11 Bolts in Sequence)
30 N?·m
22 lb ft
Cylinder Head Bolts (Second Pass all M11 Bolts in Sequence)
90 degrees
Cylinder Head Bolts (Final Pass all M11 Bolts in Sequence-Excluding the Medium Length Bolts at the Front and Rear of Each Cylinder Head)
90 degrees
Cylinder Head Bolts (Final Pass M11 Medium Length Bolts at the Front and Rear of Each Cylinder Head in Sequence)
50 degrees
Cylinder Head Bolts (M8 Inner Bolts in Sequence)
30 N?·m
22 lb ft
Intake Manifold Bolts (First Pass in Sequence)
5 N?·m
44 lb in
Intake Manifold Bolts (Final Pass in Sequence)
10 N?·m
89 lb in
Intake Manifold Wiring Harness Stud
10 N?·m
89 lb in

Heads 65
rods bearings 45
mains bearings 65
all are in foot pounds,,, not sure on intake but i think 20 foot pound

the heads tight in sequence,, start in center and work out back and forth,,,left and right opposite of the other,,,tightin all to. 20 first then go back and tightin to 65

Go to autozone.com and become a member of their web-site. It is FREE. You can then access repair info for your vehicle. There are repair manuals that show pictures and everything. I will look for your torque specs and picture.

Clean the cylinder head bolts, apply sealer to the threads, and hand-tighten.

Tighten the cylinder head bolts:

1. M11 cylinder head bolts first pass in sequence to 30 Nm (22 ft. lbs.).
2. M11 cylinder head bolts second pass in sequence + 90 degrees.
3. M11 cylinder head bolts (1,2,3,4,5,6,7,8) + 90 degrees
4. M11 cylinder head bolts (9 and 10) + 50 degrees
5. M8 cylinder head bolts (11,12,13,14,15) to 30 Nm (22 ft. lbs.). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.
   NOTE The cylinder head gasket displacement can be verified by markings visible on the underside of the right gasket locating tab. Some 4.8/5.3L head gaskets may have 53 stamped onto the locating tab. Some 6.0L head gaskets may have 60 stamped onto the locating tab.

Quote:





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.

Intake manifold using new gaskets. Torque the bolts, in sequence, to 105 inch lbs. (12 Nm)...



Fig. Intake manifold torque sequence-3.7 & 4.7L engines


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Fig. Cylinder head bolt tightening sequence-3.1L engines & 2001-04 3.4L engines




Fig. Cylinder head bolt tightening sequence-2005 3.4L engines



Hope this help (remember rated and comment this).