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  #1  
Old 08-29-2010, 09:38 AM
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Default whats the average life of a 4.3

i was just curious what the average life is on the 4.3, i have a 94 that just hit 230,000 miles still all original except for exhaust and air filter. I can still take off from a stop sign and burn the tires off the rim if i wanted to. Haven't decided if i want to rebuild the motor when it goes or do a v-8 swap. I also heard once the 4.3's hit 200,000 miles its hard to keep them running.
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Old 08-29-2010, 11:14 AM
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Ive had 2 s10 blazers,a 91 2wd,a 91 4wd(still have it). 1st one had 362,000 miles on it. I used 3 quarts of oil a WEEK. but still ran great. Me and a few guys at the shop tried blowing it by beating the sh out of it on the road and it still never blew.ended up wrecking it. The one i have now has 210k miles and its doing ok. burning some oil,but runs great. 4.3 tbi for the win!
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Old 08-29-2010, 04:14 PM
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Mine is also a '94 currently at 274,000 miles doesn't use a drop of oil and runs as strong as ever, it's all about maintenance and not beating it to death. This lil 4.3 CPI has been very good to me although it soon will come out in favor of a v8 when I do the SFA just because I want to.
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Old 08-29-2010, 04:20 PM
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I have 147,000 miles on my jimmy, and no issues to speak of.
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Old 08-29-2010, 04:46 PM
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nearing 184k time for an oil change but no probs with the engine, just the fuel pump but thats all done and over with, the tires and alignment are the only thing really wrong with it
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Old 08-29-2010, 05:09 PM
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I replaced my engine at around 360K. It was still running but not as strong. I installed a GM Remanufactored 4.3 Long Block.
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Old 08-29-2010, 06:52 PM
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My 4.3 has 120k on it and my motor is pretty much blown up. Iv put over 700 miles on it with the piston hitting the cylinder head. I knew the motor was gonna blow up so I beat on it and after 700 miles of me trying to blow it up it finally happened the other night. I mean it runs right now but it runs like crap. Its running on 0 oil pressure and when I step on the gas the oil pres goes up a tiny bit. They are real good motors if you take care of them (the previous owner of my blazer didn't). The 4.3 is pretty much a small block chevy, minus the back 2 pistons.
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Old 08-29-2010, 07:38 PM
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Too many variables to say how long a 4.3 will last.

Bottom line, you take care of your engine and it will take care of you. Same goes with everything else on the vehicle.
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Old 08-29-2010, 09:29 PM
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165 000 KM on the body but 85 000 KM on the Engine ... Still going strong!

In miles is:

102 000 Miles on the body and 52 000 Miles on the Engine if i'm correct!
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Old 08-29-2010, 10:25 PM
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mine has just turned over 180k miles. burns a little oil but runs just as strong as it did teh day i got it. but thinking about trading mine for a full size truck.
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Old 08-29-2010, 10:25 PM
 
 
 
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