Lower to block torque spec

[Boostedpimp]

What does everyone torque there lower intake down to? and do you have aluminum heads or iron?

I ask because I recently was involved in a convo where everyone had mixed suggestions regarding this topic.. Some said with aluminum heads you do less while others said to keep it the same regardless of aluminum or iron heads. I personally have done the install many times over the years and always ended up at 20lbs without issues. So i'd like to hear everyone elses thoughts on the whole aluminum vs iron head subject.

 

[v8stang289]

I've put together several SBF's over the years, I've always done 20-22 ft/lbs, regardless of head material.

 

[General karthief]

Run 'em down snug, 1ugga dugga

 

[87 black gt]

A r p bolts 20-22 aluminum heads

 

[a91what]

I make my own studs with grade 8 all thread, still 20#