Quote:
Originally Posted by dcdoug
On lash adjustment - hot or cold? I know that most say hot, but I have also heard that you can do it cold.
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Your engine builder should have provided you with the valve lash specs and whether or not they are at HOT or COLD. Guys do them both way, but the lash will be different on hot than cold, even on the same engine. Personally, I adjust my valves COLD to .018 -- that's with an iron block and aluminum heads. The iron/iron, iron/aluminum, aluminum/aluminum all have different variations in the hot to cold lash relationship. If you don't have the specs from your builder, give him a ring and ask him what you should set your valves to and whether that number is hot or cold.