I've heard of 4th gens do that as well. If I could get away with not having to do them I would rather it that way. I've saw a few people do a motor flush and carb cleaner to "clean" the lifters then do a oil change right after that but idk if that's a good idea or not. I've been looking around for a DIY on how to change the lifters but haven't found anything.
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Originally Posted by 3rdgen3
Its no different than any other LSx motor with the exception to the collapsible AFM ones in the L99 and other AFM LS motors.
Its more so a precaution, a "might as well" for good insurance.
Keep in mind, Ive personally seen PLENTY of 'cam only' swapped LS motors in fbodys, trucks and other GM performance cars reuse the stock lifters when only changing the cam shaft with 100k+ miles. I'm not saying to do it..but you could.
Most people who go Heads/Cam replace the lifters.
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