2010 LC9 have the bad AFM lifters?
#11
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I tend to follow the "if aint broke dont fix it" rule around here. But If i was wanting to hot rod it around, tune for power maybe headers etc id seriously consider ditching it now. If I was cam swapping it would be a no brainer delete which I would probably do as I was deleting AFM so id do both, cam swaps in LS when done right are cherrrrrrrrrry fun.
That said, If i wanted a stock daily? Id run it til she blows, why fix what isnt broke and who knows maybe it'll be a good one and it'll last the duration.
That said, If i wanted a stock daily? Id run it til she blows, why fix what isnt broke and who knows maybe it'll be a good one and it'll last the duration.
I don't expect anyone to make the decision for me, but I do enjoy this conversation, "with the experts".
#12
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Had I bought a 5.3 I would have cracked it open pitched the DOD before the motor ever cooled off as soon as I purchased it. Reason being is that when they do fail it is more often than not more damage done than just lifters due to circulating metal from the lifter/cam failure should it eat the cam.
#16
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It's not the lifters per say but the factory cam being junk from what I discovered. All of my lifters looked good when my 5.3 started to tick. One cam lobe was missing a chunk of the "case".
#17
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^ that happens occasionally on all engines and cant really be tied to AFM lifter issues. Ironically I have a 4.8 non AFM engine sitting in the shop right now with a lobe that looks similar. Was pulling a knock code we couldnt figure out, it was a center lobe, hard to hear audibly, but its wiped. Stoeck OEM cam 03 4.8
#19
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FWIW ....... maybe nothing, 2010 5.3 4.11 gears BB tune headers etc @ 5000miles now at 75K I kept my AFM and tweaked it to come in earlier .......... no issues and it tows a lot ........ the afm works great for me imo if you have at least 3.73 gears to keep the engine closer to the torque peak the afm is beneficial .......... the 3.08 trucks its useless ....... Lifters I understood that the brand / design of lifters changed sometime in 2010 so if you got the new design chances are you would not have a problem mine is a April build truck no idea what lifters in mine but so far its good .......
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As much as Ive railed on the AFM lifters before a close friend as an 07 5.3AFM with over 200K miles in it. Not a single blip of trouble so far. Bone stock DD occasional tow sleds, boat etc but mostly a driver. He did buy it used from a dealer so we dont know if the lifters have been upgraded or not but its running champ, just thought to mention for others possibly seeking info on durability and stockers.
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