Z06 Vette LS7 piston failure

Reply Subscribe

Thread Tools

Search this Thread

Jan 28, 2008 | 08:46 PM

fossil

Thread Starter

11 Second Club

iTrader: (1)

Joined: Oct 2005

Posts: 418

Likes: 0

From: Ms

Z06 Vette LS7 piston failure

Z06 piston failure on #6 with a supercharger. Piston coming apart and scoring cylinder walls badly.

Attached Thumbnails

Z06 Vette LS7 piston failure-2007-zo6-corvette-061.jpg

Z06 Vette LS7 piston failure-2007-zo6-corvette-062.jpg

Z06 Vette LS7 piston failure-2007-zo6-corvette-063.jpg

Jan 28, 2008 | 08:58 PM

Greg Fell

TECH Fanatic

iTrader: (9)

Joined: Feb 2002

Posts: 1,126

Likes: 0

From: Morton IL

time to forge it! can the block be cleaned up with a bore/hone, or is it too deep?

Jan 28, 2008 | 09:04 PM

fossil

Thread Starter

11 Second Club

iTrader: (1)

Joined: Oct 2005

Posts: 418

Likes: 0

From: Ms

Quote:

Originally Posted by Greg Fell

time to forge it! can the block be cleaned up with a bore/hone, or is it too deep?

I will measure tomorrow, just tore down tonite. It will easily catch a finger nail on both scars. Compression was 85psi and will not pass a leak down test.

Jan 28, 2008 | 10:49 PM

Unaffliated Racing

Registered User

iTrader: (15)

Joined: Nov 2002

Posts: 873

Likes: 1

pm sent

Jan 29, 2008 | 12:29 AM

Steve - Race Eng

LS1TECH Sponsor

iTrader: (1)

Joined: Mar 2003

Posts: 738

Likes: 177

From: Oceanside, Ca.

scars

Take a good look at that cylinder wall when you remove the piston. It may be cracked. I can resleeve the block if it is cracked or won't clean up. Don't junk it.

Steve

Quote:

Originally Posted by fossil

I will measure tomorrow, just tore down tonite. It will easily catch a finger nail on both scars. Compression was 85psi and will not pass a leak down test.

__________________
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net