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N8B · 12-31-2011, 04:53 AM

The lighter ones are more than likely Aluminum.
Pretty typical as far as blocks go and perfectly fine to use.

12-31-2011, 04:53 AM	#2
N8B Registered User Join Date: Jun 2011 Location: Las Vegas Posts: 34	Re: Lowering Block Material? The lighter ones are more than likely Aluminum. Pretty typical as far as blocks go and perfectly fine to use.