Torque Specifications for Rocker Arm Bolts for a 3.1 Liter Chevy V-6by Anne Davis
The 3.1-liter engine is a member of GM's 60-degree V6-engine family. GM, the parent company of Chevrolet, began producing these engines in 1980. The manufacturer produced its first 3.1-liter in 1993.
An engine's rocker arm is a reciprocating lever that transfers radial movement to open the poppet valve, a valve responsible for opening and closing the intake and exhaust ports in the engine's cylinder heads. The rotating lobes of the camshaft raise and lower one end of the rocker arm while the other end acts upon the poppet valve stem.
Torque refers to the force required to rotate an object, in this case a nut or a bolt, around an axis or pivot. You can think of it as a twist.
For 3.1-liter engines built between 1995 and 1997, the rocker arm bolts require two steps to reach 7.42 foot-pounds of torque in order to attach to the cylinder head. For later engines, these same bolts should receive 14 foot-pounds of torque to join properly.