Originally Posted by nova77
i always have just brought it to temperture and set the valves,never had any problems. i did not no about the .006 tighter for alum heads.
30 years of doing this and still learning. no wonder i am still slow !!!!
Thanks for the imfo-----
Your instructions were for setting them cold. Aluminum heads grow more than steel heads. They're just giving you a round about figure to set your valves cold. Like it was said earlier set your lash at .024 to .026 hot or whatever your cam recommends. Then check after your engine has cooled off, that will we your variance, and it will probably be close to .006.