My 1999 K1500 has 59,000 miles on it and has never been had any issues. I change the oil and filter at 3,000 to 4,000 miles and have just changed the cap and rotor as it was idling a little rough. The plugs are still original and the motor has never been apart. I get around 15 mpg in town and 19 mpg on the highway.
am looking at 1997-2000 vans and notice that the 5.7 liter and 5.0 liter
engines have the same VIN code. What is the difference between the
engines other than displacement, particularly reliabilty and durability?