there are many ways to adjust valve lash. this is just one example and has worked well for me. you can do it any way you want just make sure the lifter is on the heel of the cam and between a half to one turn of preload
Valve Pre-Adjustment on Chevy Small Block
Bi-weekly "How to" #19. How to set the valves after the engine has been
At TDC on #6 firing position, adjust the following valves:
Exhaust - 2,5,6,7
Intake - 3,4,6,8
Turn the crank one revolution. The cam timing mark and crank mark will both
be on top of the gear. This is TDC #1 firing position. Adjust the following
Exhaust - 1,3,4,8
Intake - 1,2,5,7
Disclaimer: To the best of my knowledge this video is accurate. I am in no
way responsible for any occurance resulting from following the instructions
in this video.
Valve Lash Adjustment Video - Engine Building Car Repair DVD
Buy the "Basic Engine Building" DVD
Basic Engine Building DVD - Chapter 49: Valve Lash Adjustment
You should have done this previously in the "Pre-Assembly" section. This
time it's for real. You want to leave as much of the internal lubrication
in place as possible. If you follow the firing order of your motor, you'll
only have to turn the crankshaft one complete rotation. This section has
some of the more detailed 3D models to show you the internals of a working
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