Pulled my valve covers today because I developed a miss and suspected a valve train problem.

Sure enough I have a broken valve spring. Good news is it appears it's a clean break (no pieces), the rocker is OK, the pushrod looks good, and the valve didn't fall in the cylinder.

Now the dilemma is do I just replace the spring or should I pull the head? I really don't want to pull the heads unless I absolutely have to. Any suggestions?

Here are a couple pics

http://www.regionofdoomforum.com/Upl...SS/spring1.jpg

http://www.regionofdoomforum.com/Upl...SS/spring2.jpg

 

Do you know why it broke? What valvetrain setup and cam are you running?

Thomas.

 

Why it broke? Six years of shifting at 7,000 RPM I suppose They were setup by ARE back in the day, good for .600" lift, comp cams 306 cam, and AFR hydra rev.

I don't suspect it is a setup issue, I got my moneys worth out of them.

 

lucky you didn't drop the valve....

 

What brand of springs are they, just out of curiosity.

 

I would just replace all springs at this point. Dont have to pull the heads for that unless you want them 'reviewed'.

 

I agree. If one spring broke, the others may not be far off. Might be time to go with the Comp beehives that are popular these days.