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Posted
its cast, not aluminum

some can be but were talking about stock

Its cast aluminum... and im pretty sure the sleeve would be steel as cast iron would be somewhat porous which is not really what you want in a sleeve application. could be wrong tho.

 

Posted

hmmm, i always thought the cylinders were cast aluminum and the sleeves were steel. a cast iron cylinder would make for one heavy f*@$ing cylinder! then again, isn't there some kind of chemical reaction or oxidation that takes place between steel and aluminum?

Posted
I'm 100% sure also...

Yep thats why the cyls are polished on so many!

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