How many miles does your original Vortec V6 have?
The Vortec V6 is one of the best engines GM ever made. My second (M series mini van) went 330K plus with minimal problems. My third went 230K before the rings in #1 cylinder blew. That engine used oil from the beginning....they made change in '98 - 01 that resulted in problems.
alls i can say is wow those milages are incredible i wish i gave up on my blazer a while ago but didnt. got it 2years ago my second blazer with 111061 test drove it lookd a evthing again n again thought i was getting a steal st 1200bux...... not a steal i got robbed 4wd didnt work a week later evrything sarted leaking i washed it n paint started peeling ectect. i put quite a bit of money into it gas tank fuel pump interior windshield pads shoes wheel cylinders calipers rotors window motors oil lines radiator water pump thermostat battery(duralast gold) k&n filter and the list goes on i took a fw months to decide n save and chose to buy a new motor instead of buying new truck. i have 132000 on it now n it runs like uh a dog its horrible so taking care of a motor obviously makes a diff my motor wasnt taken care of until i got it. again wow lets see how long i can get my motor to last
Welp ... my '89 Blazer has 83,XXX and it's engine has 145,7xx. Engine is out of a '00 Jimmy SLE.
We bought the blazer with only 76k on the clock, but one cylinder burned oil so bad I had to clean the #2 plug every 2-3 days. Went up on the heat range as high as possible, then it was once a week. Finally installed a defouler, which fixed that issue. Burned a quart of 20W-50 in the dead of winter every 50 miles.
Bought it in a town not far from NYC, so it's been city driven presumably it's whole life .... or the mileage was rewound. Either way, it runs great now with the newer engine minus the electronics.
We bought the blazer with only 76k on the clock, but one cylinder burned oil so bad I had to clean the #2 plug every 2-3 days. Went up on the heat range as high as possible, then it was once a week. Finally installed a defouler, which fixed that issue. Burned a quart of 20W-50 in the dead of winter every 50 miles.
Bought it in a town not far from NYC, so it's been city driven presumably it's whole life .... or the mileage was rewound. Either way, it runs great now with the newer engine minus the electronics.



