Cylider Head Torque Specs For A 1999 3 8 Standard Not Super Charged 1992 1999 Pontiac Bonneville

Chosen Solution

What are the specs does any one know?

Cylinder Head Bolts 3.8L Step 1 37Ft/lbs (50N.m) Step 2 Additional 120 Degrees Step 3 (4 Center Bolts) Additional 30 Degrees It’s kind of weird, but this is the way it is listed in the service manual. Only the initial torque is given as a value, whereas the subsequent ones are by degrees of rotation.Hope this helps, good luck.

What are the 4 center bolts?