05-16-2007, 10:52 PM
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CC Member
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Join Date: Feb 2007
Location: Idaho Falls,
ID
Cobra Make, Engine: FFR Mrk III 427 SO TP 2x4 and a toploader
Posts: 48
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Manowar,
Got any spec's on how tight you thread in the freeze plugs? Do you use an NPT cut block with a NPST plug? I've got some weap issues, as if you can't tell by the question. Don't want to overtighten or go to something soft and gall. Any help you could offer? Steel to aluminum torque spec maybe?
StangerX,
I have been rolling the aluminum heads over in my mind thinking of this very issue of better "Heat Sink". I questioned the block as well. Any data to confirm you remarks? Heat up with the aluminum block is quick, which to me states btu loss into the casting and not into the combustion gas expansion. I think that is the reason they run them hotter is the parasitic loss that is going on.
We should continue this topic further. I am quite interested on views and data available on this.
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