Torque spec and sequence for the head bolts

Tighten the cylinder head bolts.
Tighten the M11 cylinder head bolts (1-10) a first pass in sequence to 30 N.m (22 lb ft).
Tighten the M11 cylinder head bolts (1-10) a second pass in sequence to 90 degrees using J 45059.
Tighten the M11 cylinder head bolts (1-10) a final pass to 70 degrees using J 45059.
Tighten the M8 cylinder head bolts (11-15) 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.

Use an accurate torque wrench, a good torque-angle meter and new cylinder head bolts.

Here is a video to help

https://youtu.be/juOClONIWeY

You will find the sequence in the picture (attached) for the heads and intake

On my head I have fifteen bolts. Five of which are m8 and m10 that are m11. The specs still the same.

What is it for a 2012 gmc sierra 5.3?

Hi Joanna,

They will be different. Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken