ProComp/Speedmaster aluminum heads

yellow rose said

Read it closer Bob. I said aluminum heads AND block you need to lash it .016-.018 tighter cold.

Then you need to check it hot. I’ve seen some stuff need to lash at .002 cold to be at .022 hot.

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I dont get what ur saying. I have alumn. heads, cast iron block , and set mine at .011-.012 cold , they are always right at .018 when hot . I round it off instead of worrying about a .001 or two on a .600 lift cam .
Like I said , more than one have advised that way w/ alum. heads.
I am getting ready to adjust them for the 5-6 time in 9-10 yrs, altho it doesnt have a heck of a bunch of miles on it -----------------