What are the torque specs on head bolts?

2012 CHEVROLET SILVERADO
180,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
Avatar
CLIFFWHITE
  • MEMBER
  • 1 POST
Torque specs needed for the head bolts.
Sep 22, 2022 at 9:08 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

If you look at the pic below, it includes the tightening sequence and the torque specifications.

When you do this, it should be done in a three-step process. Follow the directions as indicated. Also, it indicates using an angle meter. It's easy to turn it an additional 90 degrees, but 70 may be difficult. I always mark the bolt and head prior to tightening the additional degrees. You may find that helpful.

Take care and let me know if this helps or if you have other questions. Make sure to follow the sequence.

Take care,

Joe

See pic below.
Sep 22, 2022 at 8:45 PM
Advertisement