Oil behind intake

revhead347 said:

Stock torque is 24 ft lbs. I'm telling you, if you torque them down that far you run the risk of lifting the heads.

Kurt

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I gotta say I think along the same lines about that much torque

Also ... I think that is too much torque on soft threads you find in
Aluminum heads

If you think about it
The torque spec was made up with iron heads in mind

I personally don't use a torque wrench for the lower intake

If I had to guess ... I'd say 16 to 18 lbs would be about what I use

I just kinda know what feels right with a 3/8" ratchet

What I think is really important is this :Word:

When you install a new lower ... You must run through the torque sequence
three, four, five times or more until you get even tightness on all bolts

You should go over them again after two heat cycles because it is a
given ... you will find some loose bolts

Grady

Wow only 16 to 18 lbs? I generally torque mine to 26lbs going threw the sequence more times than i care to admit. Ive done this with name brand trickflow heads as well as the generic Pro Comp heads im running now. Never a problem. Also i thought the stress from combustion was on the head bolts. Im trying to figure out how intake torquing can cause a head to lift. To get it right you may have to go threw the torque sequence at say 6lbs 4 times...i don't move onto the higher torque until im sure every bolt is at that correct setting...so i tend to do something like 6lbs, 10lbs, 14,lbs, 20lbs, 24lbs.....i know its excessive but its never let me down.....and i have never had a loose bolt. I don't know about you but my hand cant tell the difference between 20lbs and 24lbs....This is like when my Chevy loving friend told me he could accurately do the timing on his car by ear. I let him then grabbed my timing gun and noticed he was about 9-10 degrees off. But i digress....Tighten it by hand till where you think its right......then grab a torque wrench and see how accurate your hand is.....you may be superised.