What is the Rocker arm torque specs for 3.4L Pontiac Montana?

Answer 1

I got a call back from my local dealer and Intake manifold bolts are 115 in./lbs and rocker arm bolts are 14 ft/lbs then 30 degrees past that. Also good to point out that push rods are long on outside of gasket, short on inside of gasket closest to the head.

Answer 2

Small block Chevys have adjustable rocker arms, so there is no torque spec for that. Rockers are adjusted for a specific backlash and/or preload based on the type of cam being used. Refer to cam card or auto repair manual for your application.

Answer 3

The torque for roller rockers should be 25ft lbs. It was perfect for my 3.4l. It ran very smooth and quiet.

The correct torque for the rocker arm bolts is 124 inch pounds plus 30 degrees.....

25ft ponds would bind you up pretty bad I'm surprised the engine turned This is some what correct...... The answer is correct at 124 inch pounds + 30 degrees. As this is done you will end up at about 20 foot pounds. Lets start from the beginning. 124 inch pounds is 10.3 foot pounds, so if you start at 10ft and turn the bolt head a bit less than a quarter turn you will end up at about 20 to 21 foot pounds. I am not saying the torque spec is not important. But the other author said the 25 ft lb will bind the motor up. This is not true. The rocker is a non adjustable pedestal type. So this means tight is tight. If you make some tighter than others it will not change the clearance. These are auto adjusting zero lash rocker and cam and lifters. Tighter or looser only changes the torque spec, nothing else. The factory spec is there for a reason, please use it. 124 inch pounds + 30 degrees.If you only have a ft lb torque wrench the conversion is to divide 124 by 12. You end up with 10.3. As far as turning the bolt 30 dg, think of a clock. Hand on twelve and turn to the two. This is 30 degrees.....

Answer 4

14ft lbs.