Here is a site that provides the sequence: http://www.autozone.com/az/cds/en_us/0900823d/80/11/bc/70/0900823d8011bc70/repairInfoPages.htm#hd1-1-1 Just arrow down and it will show you the sequence for 6 cyl, SBC and BBC.
Start in the middle, and work your way out, in a circular pattern. First, go half torque, then full, turning the crankshaft by hand after each cap.
torque specs 350 Chevy heads65 lbs
35ft. lbs.
45 lbs.
45 Lb/ft Below is a link to all small block Chevy torque specs.
You can get the sequence out of any repair manual such as Motor's, Chiltons, or Haynes. The idea is to start in the center and go in a clockwise pattern working your way out to the ends. Usually three stages is adequate, such as 30 ft/lbs, 45 ft/lbs, then final torque on the third pass.
65ft. LBS.
35 ft. lbs.
35 ft. lbs.
65 ft-lbs
http://torquespecs.xoompages.com/gmfs70-88chv8.htm
A lot of manufacturers use a torque setting, but not Chevy. With the motor running, go to zero lash, and then 1/2, to a full turn from there.