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collapsed lifter? Are LS7 lifters the replacemant?

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Old Sep 16, 2016 | 11:56 AM
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Default collapsed lifter? Are LS7 lifters the replacemant?
Ok I pulled my valvecover in my 09 Impala after not being able to figure out what caused my cyl #4 misfire. After pulling the valvecover I see this. Now I will replace the lifters and then have the DOD tuned out. Are the LS7 lifters a oem upgrade to the stock ones?

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Old Sep 16, 2016 | 01:28 PM
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Yes, you'll need some new buckets for them as well. You also might want to check pushrod length. Even though they're the stock replacement it's very possible you'll need a different length of pushrod.
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Old Sep 16, 2016 | 03:07 PM
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Originally Posted by CJDZ24_Z28
Ok I pulled my valvecover in my 09 Impala after not being able to figure out what caused my cyl #4 misfire. After pulling the valvecover I see this. Now I will replace the lifters and then have the DOD tuned out. Are the LS7 lifters a oem upgrade to the stock ones?

Collapsed lifter?? - YouTube
While you have the cover off I would at least remove the rocker and spray some carb clean down the pushrod tube, see if its just stuck.Probably not but worth a try.
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Old Sep 17, 2016 | 10:52 PM
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Originally Posted by rottonj
While you have the cover off I would at least remove the rocker and spray some carb clean down the pushrod tube, see if its just stuck.Probably not but worth a try.
I did spray some Seafoam top engine cleaner directly in there no good

Thanks for the replies. I can't believe how dead this section is
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Old Sep 24, 2016 | 05:33 AM
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Not much of an upgrade, the ls7 is the same as a ls2 lifter. Nothing special about them other than marketing the ls7 name. Anything is better than he dod lifters though.....
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