Quote:
Originally Posted by GearheadSS
Pre-2007 5.3s are definitely the most reliable. Anything with AFM/DFM is prone to lifter failure. If I were buying a new GM 1500 that I planned to keep a long time, I'd get a 3.0L Duramax diesel or a 2.7L 4 cyl turbo.
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You might want to investigate where the timing belt is on a 3.0l diesel as it's a 100k maintenance item, if your truly considering keeping one long term