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Old 08-02-2014, 05:20 AM   #29
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Could've been worse. Glad you got it figured out hopefully theres nothing else damaged. What springs were those btw?
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Old 08-02-2014, 05:51 AM   #30
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Yeah were they stock springs or aftermarket?
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Old 08-02-2014, 08:31 AM   #31
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They were PRC .675 springs that came with the cam kit. Thanks guys. I hope there's no further damage either. I'm going to have to trailer it up to San Antonio to have lethal check it out.
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Old 08-02-2014, 10:52 AM   #32
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Hey the valves are still in the locks... you dodged a bullet. New springs are easy.
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Old 08-02-2014, 02:22 PM   #33
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How does this one look?
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Old 08-02-2014, 03:23 PM   #34
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Id go ahead and replace all the springs your already there man might as well know you have a fresh set. You might have gotten a defective set to start with why take the risk of this happening again.
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Old 08-02-2014, 03:52 PM   #35
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I would be leery of installing the same brand springs for sure.
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Old 08-02-2014, 04:37 PM   #36
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FWIW a simple back pressure test will determine if a cat is plugged or not. I know that's not your problem but for anyone else trying to diagnose a similar issue this will take away the guesswork.
I would go with BTR Brian Tooley Racing valve springs.
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Old 08-02-2014, 05:51 PM   #37
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Quote:
Originally Posted by LSX Camaro View Post
FWIW a simple back pressure test will determine if a cat is plugged or not. I know that's not your problem but for anyone else trying to diagnose a similar issue this will take away the guesswork.
I would go with BTR Brian Tooley Racing valve springs.
Yes.
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Old 08-02-2014, 06:05 PM   #38
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I would also take the head off and make sure the valves didn't touch the pistons. These valves aren't very strong. I had the same issue as you and thought I could just replace the springs. Well that part ( replacing the springs) was easy. Went for a test drive and about a half mile out the intake valve head snapped off side ways into the intake port and ruined that head and piston and also sent shrapnel across the engine and messed up that piston and head. That was a hell of a hard lesson to learn from. Good luck
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Old 08-02-2014, 07:14 PM   #39
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You could use a bore scope to look into the cylinders and inspect the pistons for any damage.
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Old 08-02-2014, 07:32 PM   #40
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Thanks guys. I'm giving lethal a call to have them inspect for further damage. I hope it's just the springs. I am replacing the whole set.

Quote:
Originally Posted by LSX Camaro View Post
FWIW a simple back pressure test will determine if a cat is plugged or not. I know that's not your problem but for anyone else trying to diagnose a similar issue this will take away the guesswork.
I would go with BTR Brian Tooley Racing valve springs.
Which ones specifically? Anyone know any other springs that could hold up to this cam?
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Old 08-02-2014, 08:09 PM   #41
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Coil bind may have caused that.
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