need in detail on the torque specs for a 5.3l v8 with fuel saver heads.
May 1, 2020 at 2:42 AM
Install new torque-to-yield head bolts only. Tighten M11 bolts 1-10 in sequence to 22 lb-ft, then 90 degrees, then a final 70 degrees with an angle meter. Tighten shorter M8 bolts 11-15 to 22 lb-ft, starting at center bolt 11 and alternating outward. Follow the left- and right-side sequences.
The owner of a 2011 Chevrolet Silverado with a 5.3L V8 asked for cylinder-head bolt sequence and torque specs. Experts said the bolts are torque-to-yield and must be replaced, then gave the sequence: M11 bolts 1-10 to 22 lb-ft, plus 90 degrees, plus 70 degrees, and M8 bolts 11-15 to 22 lb-ft from the center outward. Diagrams and a torque-wrench video were referenced.