[Z06] Zo6 engine blown after cam install
Thread Starter
Racer
Joined: Jul 2007
Posts: 449
Likes: 0
From: Ft Worth Tx
Zo6 engine blown after cam install
hello,
I have a buddy with a c5 z he just did a cam install and then put in a custom tune from a vender. The car was running great until the second day on his wat to work at 5k rpm ka boom........ oil and anti freeze every where. he also installed new springs and a ls2 timing chain. the car is now at RPM but has not been worked on yet. Does anyone have any ideas. I know this gut very well he does great work but he is beating his self up thinking he did something wrong...
any help would be great.
Also the car wil not turn over.
I have a buddy with a c5 z he just did a cam install and then put in a custom tune from a vender. The car was running great until the second day on his wat to work at 5k rpm ka boom........ oil and anti freeze every where. he also installed new springs and a ls2 timing chain. the car is now at RPM but has not been worked on yet. Does anyone have any ideas. I know this gut very well he does great work but he is beating his self up thinking he did something wrong...
any help would be great.
Also the car wil not turn over.
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Race Director
Joined: Aug 2004
Posts: 14,639
Likes: 39
From: Winston-Salem North Carolina
St. Jude Donor '08-'09
, not a pretty sight. (been there, done that)
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
yeah, been there done that on wife's car, threw rod cruising down road at 30mph, can happen anytime to anyone in any car. In wife's case a rod bolt broke.
new block was required. She also threw a rod on my lawnmower
new block was required. She also threw a rod on my lawnmower
Pro
Joined: Mar 2008
Posts: 664
Likes: 6
From: Kearney Nebraska
ok, this may sound stupid but i have no idea who your friend is so im going to ask.
What Valve Springs did he put in??? if he didnt use a good enough valve spring it couldve broke a spring (if he didnt have duals) the valve couldve dropped and thus the Catastrophic Failure!!
What Valve Springs did he put in??? if he didnt use a good enough valve spring it couldve broke a spring (if he didnt have duals) the valve couldve dropped and thus the Catastrophic Failure!!
Last edited by 06x6spdGTO; Jan 28, 2010 at 11:32 PM.
Pro
Joined: Oct 2006
Posts: 562
Likes: 0
From: Gulf Coast Texas
This exact thing happened to my friend (who is another member here). He installed his new 408 and put a VERY LARGE camshaft in the motor without checking PTV clearance. He was trying to break the motor in and the first time he got it above 5000 rpm, the motor let go.
Not saying this was the case, but has the cam been used in another LS6 before? Or was it a custom grind?
Not saying this was the case, but has the cam been used in another LS6 before? Or was it a custom grind?
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC