valve lash

Old 03-11-2012, 08:47 AM
  #11  
markdunlap
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Default valve lash

Don't do what I said, do what I meant on the valve lash.

It's .004" tighter for aluminum heads and .004" looser for iron heads.

Sorry about that, I was still asleep, I guess.
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Old 03-11-2012, 10:32 AM
  #12  
roadkill2
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Mark's pretty close . .

We have a preliminary cold setting of about +.005 over . . Then, once well warmed, set to cam specs. I can't remember what the cooled setting was (it's written down, 'cause old guys can't remember shit) and we refer back to that as long as we don't change anything in the valve train . .

We also check the hot lash after the third run on qualifying day or before first round of eliminations, just because . . you can tell a lot about your engine's condition by running the valves after a couple (or more) hard passes . .
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Old 03-11-2012, 12:11 PM
  #13  
hotrod1994
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ok thanks for the correction guys
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