LS6 hollow valves.

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Nov 30, 2008 | 11:37 AM

396375

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Melting Slicks

Joined: Nov 2007

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From: Niagara Falls NY

St. Jude Donor '08-'09

LS6 hollow valves.

Did all 243 heads have hollow sodium filled valves?Is there anyway to recognize these valves while they are still in the head?I know in 2002 the valve was actually longer then a LS1 valve.Not sure about other years.
Thanks.

Nov 30, 2008 | 11:47 AM

The Wrench

Burning Brakes

Joined: Oct 2004

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From: Rowlett, Texas

I am pretty sure the first year Z06 heads ('01) did not have the hollow/longer valves, due to less cam lift. But, I do not know if these were the same 243 head number as the '02-'04. All the '02-'04 had the longer/hollow valves with stronger springs also.

DG

Nov 30, 2008 | 11:58 AM

Konstantin

Pro

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From: Toronto/Maple ON

do i need different pushrods if i use 02+ valves in 01 engine ?

Nov 30, 2008 | 01:58 PM

sami85L98

Le Mans Master

Joined: Apr 2005

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From: Scarborough ONTARIO

I need to confirm this as well, as i was thinking all 01-04 Z06 have hollow sodium filled valves, now iam

what 01 Z valves are?

Nov 30, 2008 | 02:22 PM

Konstantin

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From: Toronto/Maple ON

01 valves are not hollow/sodium filled, only 02-04

Nov 30, 2008 | 02:34 PM

ctsv510

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From: PA

'01 LS6 has the same valves as LS1. The only valvetrain upgrades in the '01 LS6 were the springs.

Here's a couple good links on the changes from the LS1 to the LS6:

'01 LS6

'02+ LS6

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