C7 Cylinder Head Specifications and Torque Specs

Table 1
Specification for 219-5849 Cylinder Head Gp 
Item Qty Part Specification Description
14 142-7289 Cylinder Head Fastener Gp Use the following procedure to tighten the cylinder head bolts:
1. Tighten bolt 1 through bolt 14 in a numerical sequence to 300 ± 15 N·m (220 ± 11 lb ft).
2. Loosen bolt 1 through bolt 14 to
0 N·m (0 lb ft).
3. Tighten bolt 1 through bolt 14 in a numerical sequence to
130 ± 15 N·m (95 ± 11 lb ft).
4. Again, tighten bolt 1 through bolt 14 in a numerical sequence to
130 ± 15 N·m (95 ± 11 lb ft).
5. Turn bolt 1 through bolt 14 in a numerical sequence to an additional angle of 90 degrees (1/4 turn).
Before assembly, lubricate the threads and the bearing surfaces of bolt 15 through bolt 20 with 4C-5599 Anti-Seize Compound .
6. Tighten bolt 15 through bolt 20 in a numerical sequence to
55 ± 7 N·m (41 ± 5 lb ft).
6 8T-7950 Bolt
C 6 8M-5860 Cup Plug Before assembly, apply Loctite #120540 to the bores.
Installation depth of the cup plug is
1.25 ± 0.25 mm (0.049 ± 0.010 inch).
D 6 227-1200 Injector Sleeve Length for applying green Loctite 620 on the injector sleeve is
4.0 mm (0.16 inch).
21 6 310-7257 O-Ring Seals Apply clean engine oil.
22 6 310-7255 O-Ring Seal


Right side view of engine

Table 2
Specification for 219-5849 Cylinder Head Gp 
Item Qt Part Specification Description
23 2 319-6234 Plug As Torque to
184 ± 18 N·m (136 ± 13 lb ft).
G Height of new cylinder head is
158.00 ± 0.15 mm (6.220 ± 0.006 inch).
K 4 8M-5860 Cup Plug Before assembly, apply Loctite #120540 to the bores.
Installation depth of the cup plug is
1.25 ± 0.25 mm (0.049 ± 0.010 inch).
L 2 4F-5695 Cup Plug Before assembly, apply Loctite #120540 to the bores.
Installation depth of the cup plug
1.25 ± 0.25 mm (0.049 ± 0.010 inch).
24 6 307-2671 Plug As Torque to
16.0 ± 1.5 N·m (140 ± 13 lb in).
N 2 8M-5860 Cup Plug Before assembly, apply Loctite #120540 to the bores.
Installation depth of the cup plug is
1.25 ± 0.25 mm (0.049 ± 0.010 inch).

 

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