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Figure 92— Timing Marks
INTAKE M ANIFOLD
INSTALLATION
5.0L AND 5.7L ENGINES
+4-
Install or Connect (Figures 94 and 95)
1. Gaskets (22) to the cylinder heads.
• Make sure the tab and/or arrow faces the front
of the engine. The side stamped "This Side
Down" must face the cylinder head.
2. RTV sealant to the front and rear intake manifold
sealing surfaces on the block as follows:
• Refer to figure 94.
• Apply a 5 mm (3/16-inch) bead of RTV sealer
(GM P/N 1052289 or equivalent) on the front
and rear of the block. Extend the bead 13 mm
(1/2 inch) up each cylinder head to seal and
retain the gaskets.
3. Intake manifold (21) to the engine.
N O T IC E : R e f e r to " N o t i c e " o n p a g e 6 A 5 -1 .
4. Intake manifold bolts (19) and studs (20).
Tighten
• Bolts (19) and studs (20) to 48 N-m (35 lbs. ft.)
using the tightening sequence shown in figure
95.
7.4L ENGINES
+ 4 -
Install or Connect (Figures 96 and 97)
1. Gaskets (22) to the cylinder heads.
• Apply a 5 mm (3/16-inch) spot of RTV sealer
(GM P/N 1052289 or equivalent) on the front
and rear of the block in four places as shown in
figure 96.
Seals (23) to the block.
2 (
3. Intake manifold (21).
Engines)
N O T IC E : R e f e r to " N o t i c e " o n p a g e 6 A 5 -1 .
4. Bolts (20).
Tighten
• Bolts (20) to 40 N-m (30 lbs. ft.). Use the tight
ening sequence shown in figure 97.
ROCKER ARM COVER
INSTALLATION
+4-
Install or Connect (Figures 98 and 99)
1. Gaskets (34).
2. Rocker arm covers (32).
N O T IC E : R e f e r to " N o t i c e " o n p a g e 6 A 5 -1 .
3. Bolts.
Tighten
• Bolts to specification:
— 5.0L and 5.7L engines: 10 N-m (90 lbs. in.).
— 7.4L engines: 8 N-m (70 lbs. in.).
EXHAUST MANIFOLD
INSTALLATION
0
Install or Connect (Figures 100 and 101)
1. Exhaust manifold (1).
2. Spark plug wire heat shields (6).
N O T IC E : R e f e r to "N o t i c e " o n p a g e 6 A 5 -1 .
3. W ashers (2), tab washers (3, 5.0L and 5.7L
engines), and bolts/studs (4).
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