Help: Broke Valve Spring
#1
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Help: Broke Valve Spring
Hey guys I decided to make a account after serching threads here for some years now and well now I cant find this anywhere. Well I went out to eat with the family went in ate and when we were leaving I decided to give it some gas in the parking lot, well as soon as I let off the car ran like crap. I decided to drive it home since it was fairly close the SES light started flashing but i managed to get it home. I took the valve cover off and found a broken valve spring so I took it to a shop fairly close to my house (towed) and today the Guy calls me and says the valve is to high??? Has anyone one ever heard of this? I wanna say hes BS since he wants to replace the heads but whats your take? Its a 99 Firehawk w/120k.
#2
ModSquad
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Sounds to me like he is talking about stem height. If so, then you have either a valve seat issue, or the valve itself has "tuliped". Either way, it's time for you to have your heads rebuilt.
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Thanks for the reply guys I really appreciate it. So it is possible that the valve is to high? I talked to a buddy of mine who also has a ls1 and he said maybe he forgot to put the retainers? either way imma take a look at it when I get off. And do you guys recommend I rebuild my heads or should I get new ones? Keep in mind the motor has 120k.
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#9
TECH Senior Member
Not necessarily. If the piston just has a little eyebrow on it (custom valve relief )
You might just need to refresh the heads, slap in another valve and guide/seat.
Can you post pictures??
On the other hand if you have the $$$$, yeah why not a properly built longblock. Or a 383
You might just need to refresh the heads, slap in another valve and guide/seat.
Can you post pictures??
On the other hand if you have the $$$$, yeah why not a properly built longblock. Or a 383
#10
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Well I picked up a ls1 off a Corvette and imma put it in for now and put this one in a stand and little by litter be putting top notch parts on it. But yea ill post pics up when I get home.