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Old 08-20-2009, 03:06 PM
Anthony Anthony is offline
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Join Date: Apr 1999
Location: cleveland, OH
Cobra Make, Engine: CSX4000, 427
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Not much of an issue with iron block-head combo's, lash doesn't change much

With aluminum heads- iron block, at about 70 degrees, expect about .007" looser lash at operating temp, so set lash that much tighter with engine cold.

With all aluminum engine, about .015" looser lash at operating temp.

I have found it difficult to try to start my engine at about 40-45 degrees ambient temp, when lash is probably 0 or maybe less when cold.
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