Chevy 5300 LM7 engine..
#3
DINOSAURUS BOOSTUS
Expert Gearhead
Not sure which one is in my 2000 Silverado (probably the LM7, but I never looked up the code), it'* about the best motor I've found. Supposedly known for piston slap in some of the early versions. I have put this puppy through it'* paces for a bit over 140,000 miles so far. The maintenance list is small, but the UIM/LIM gaskets are due this year.
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