Gmc 2003 yukon xl denali 6.0 v8 head cylinder bolts torque

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
· Tighten the cylinder head bolts.
Tighten
1.Tighten the M11 cylinder head bolts a first pass in sequence to 30 N·m (22 lb ft).
2.Tighten the M11 cylinder head bolts a second pass in sequence to 90 degrees .
3.Tighten the M11 cylinder head bolts (1, 2, 3, 4, 5, 6, 7, 8) to 90 degrees and the M11 cylinder head bolts (9 and 10) to 50 degrees a final pass in sequence Tighten the M8 cylinder head bolts (11, 12, 13, 14, 15) to 30 N·m (22 lb ft). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.

Since your are a DIYer I strongly recommend you get a repair manual you will want it next time, there will be no doubt about factory specifications for any part of the engine. The manual is a easy nearby reference if you get stuck in the middle of the operation .