System Specifications

Cylinder Head Surface Variation
Surface Flatness - Block Deck - Service Limit 0.2 mm (0.0079 in)
Surface Flatness - Block Deck - Production Value 0.075 mm (0.0030 in)

Cylinder Head Bolt Re-Usability
Notice: This component uses bolts with a preapplied molybdenum disulfide coating for thread lubrication. Do not remove the coating or use any additional lubricant. Improperly lubricated threads will adversely affect the bolt torque and clamp load. Improper bolt torque and clamp load can lead to engine damage.
Install NEW M12 cylinder head bolts.
Reuse the M8 cylinder head bolts.





Cylinder Head M12 Bolt - Angular Tightening Method
1st Step 50 N.m
1st Step 37 lb ft
2nd Step 80 N.m
2nd Step 59 lb ft
3rd Step 60 degrees
4th Step 60 degrees
Cylinder Head M8 Bolt 25 N.m (18 lb ft)

Right Side:

Exhaust Manifold Bolt/Nut 57 N.m (42 lb ft)

Left Side:

Right Side:

Intake Manifold Bolts/Nuts 25 N.m (18 lb ft)