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Unreal · 02-05-2015, 10:43 AM

Heads are machined or made at GM. They had a supplier maching them, and doing a piss poor job at it. They show up bagged and assembled ready to install.

Yep, people have been spinning v8s up to 8k+ for a long long time.

02-05-2015, 10:43 AM	#12
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	Heads are machined or made at GM. They had a supplier maching them, and doing a piss poor job at it. They show up bagged and assembled ready to install. Yep, people have been spinning v8s up to 8k+ for a long long time. __________________ Nick Corvette Z06 -1200ish rwhp