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c6r · 07-03-2009, 04:43 PM

LS6 Heads ( C5 Z06 ) have hollow steam valves and better spings ( up to 575 lift if I 'am not mistaken , while 243's ( LS2 ) style have your regular steel valves and 550 lift springs I THINK.

07-03-2009, 04:43 PM	#4
c6r Staging Lane 2005 Chevrolet Corvette Trader Rating: 0 Join Date: Nov 2008 Posts: 94	LS6 Heads ( C5 Z06 ) have hollow steam valves and better spings ( up to 575 lift if I 'am not mistaken , while 243's ( LS2 ) style have your regular steel valves and 550 lift springs I THINK.