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LS7 lifter failure

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Old Sep 1, 2012 | 10:40 AM
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Default LS7 lifter failure

Is it common for LS7 lifters to have the retaining clip on the topside come out?
I had one come out on me with about 6000 miles on the whole build.

Should I just replace the one lifter and go or pull the other head in put in some morels? Car is a high compression e85 416 spinning to about 7200.
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Old Sep 1, 2012 | 01:51 PM
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How much preload were they set to? (The only time I've seen what you're describing was insufficient preload.)
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Old Sep 1, 2012 | 09:54 PM
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yep, sounds like lack of preload and hammered the retainer out of the lifter
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Old Sep 3, 2012 | 12:52 PM
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This sucks man but at least you got it figured out. You def. have some setup issues. Dude, you need to have somebody to setup your valve train that knows what they're doing before you trash another engine!
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