First make sure the cam is turned so that the lifter is on the base circle of the cam, then tighten the nut until there is no backlash plus a half-turn extra.
There are no torque specs for a 350 Chevy. Follow the valve adjustment instructions in any repair manual for any small block Chevy.
torque specs 350 Chevy heads65 lbs
Rocker arms are set to a specific preload or backlash on v8 Chevies. There is no torque specification.
65 ft lbs
65ft. LBS.
17 ft./lbs.
45 ft. LBS.
65 lbs
70 ft ponds and start in middle and go in circlevisit boxwrench.net/specs/chevy_sb.htm
The rocker arm torque specification for a 1988 Chevy 350 engine is typically around 22 foot-pounds. It’s important to follow the proper sequence when tightening the rocker arms to ensure even pressure and prevent warping. Always refer to a repair manual for specific details related to your engine configuration, as variations may exist.
60-to 70 ft. lbs. of torque 60-to 70 ft. lbs. of torque
65ft. LBS.