Lifter difference

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03-06-2012, 08:41 AM

TPIIROC

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Lifter difference

I had a lifter die on my 2001 5.3. I ordered a new one #17122490 and it looks different. The roller is encased where the old one is fully exposed. Is this an updated unit?

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03-06-2012, 09:12 AM

thunderstruck507

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Yes, GM uses the "ls7" lifter as a replacement for all lifters back to the 80s Vortec SBC engines from my understanding.

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03-06-2012, 01:55 PM

trans_am7935

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Quote:

Originally Posted by TPIIROC

I had a lifter die on my 2001 5.3. I ordered a new one #17122490 and it looks different. The roller is encased where the old one is fully exposed. Is this an updated unit?

i would not suggest just changing only one lifter, if one died, then the rest are on their way. replace all of them. and yes the enclosed one is stronger

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