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Solid roller cold lash setting?

3K views 2 replies 3 participants last post by  Wolfplace 
#1 ·
Lunati cam solid roller 502A1LUN. Valve lash IN/EX: .022"/.024"
What would be best to set cold lash to? Thanks
 
#2 ·
BB,
The best way to do this is to set it a few thousanths loose, then start the engine and get it good and warmed up. Once it is warm, set the valves to the proper hot lash spec. Then, let it cool down overnight and check it. You will see how much it changes when it cools off and the next time you can set them cold based on that.
The amount that the lash changes will be different from one engine to another, depending on head material etc. The best way to do it is to set it hot, but on a street driven engine you can get close enough with the method above.

Hope this helps,
 
#3 ·
bbcvelle said:
Lunati cam solid roller 502A1LUN. Valve lash IN/EX: .022"/.024"
What would be best to set cold lash to? Thanks
-
What heads??
Aluminum .004-.006 tight
Aluminum heads & block, .012 tight
Cast I set at spec to .002 loose.
 
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