LS7 lifter failure

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03-17-2009, 04:37 PM

#21

99blancoSS

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Quote:

Originally Posted by Poik

How can a collapsed lifter make a valve stay open? All that would do would be to make it lift less. That doesn't make sense at all. Don't believe everything that's posted on the internet. Just because someone has a high dollar engine doesn't mean they know how it works.

I just posted his thread so others could see it. I saw it late and then came back to it the next day.

The real issue was PTV, although he still thought the lifter had something to do with it but he has learned otherwise.

The big picture is the whole setup needs to be carefully thought out. There is something to be learned there that's all. He figured he was ok with PatriotXtreme springs because they were good to .660 lift, ptv was very close and he went with it. It cost him the whole engine.

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