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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Tazman on November 25, 2014, 04:46:00 pm

Title: How many miles
Post by: Tazman on November 25, 2014, 04:46:00 pm
My truck just turned 200 k miles recently and I had been thinking of replacing it some time in the future. Yet that will not be happening. I was forced to retire and took another job at less pay so the new engine will have to wait. With all the trucks out there have any of you reached 300 k on the original stock motor?


Thanks
Joe
Title: Re: How many miles
Post by: FlatBlack77 on November 25, 2014, 04:52:12 pm
my parents old 78 with a straight six and three on the tree rolled over 4 times. then it dropped a cylinder and made it another couple thousand lol
Title: Re: How many miles
Post by: zieg85 on November 25, 2014, 04:56:00 pm
With routine maintenance 300K shouldn't be a problem.  There are many with more than that if taken care of.
Title: Re: How many miles
Post by: fitz on November 25, 2014, 05:43:36 pm
  A friend of mine had a 87 V10 short bed with a 350tbi motor that he bought brand new. At 257k it was getting rusty but ran like new. He gave it to me and I parted it out. The motor was one if the first things I sold off of the truck.
  A few years later he gave me a 84 suburban K2500 with 233k that his parents bought new. It was getting crusty underneath but the 350 4 bolt ran like new. That motor  also sold quickly.
  These motors will run for a long time with proper maintenance.
Title: How many miles
Post by: Chisholmcody on November 25, 2014, 05:54:48 pm
My 1978 chevy Cheyenne only has 92xxx with no role overs
Title: Re: How many miles
Post by: csdineley on November 25, 2014, 06:18:12 pm
Growing up my dad got a 79' G20 Van new with a 350. When we sold it in 98' it had rolled over 3 or 4 times. He also had a 82' C10 that most likely had 200-300k on it. 
Title: Re: How many miles
Post by: DuckAholic1 on November 25, 2014, 06:38:57 pm
My 87 350 TBI has 207 on it currently. It's my daily driver & still runs well. I also have a 68 F100 3 on tree with only 76 original.
Title: Re: How many miles
Post by: Irish_Alley on November 25, 2014, 11:30:42 pm
my 94 (i know not 100% the same) 4.3 has over 360k i think was the last numbers when i last looked at it. but shes still going
Title: Re: How many miles
Post by: 78BIG-TEN on November 26, 2014, 09:54:46 am
My 78 had 275k when I took it apart for resto.My 90 is at 245k with no major work done ,only valve seals and got worried and put a timing chain at 200k
Title: Re: How many miles
Post by: timthescarrd on November 26, 2014, 10:25:19 am
My 83 says 51k on the odometer, For all I know that could be 151k, 251k, 351k.  I just know it stays running and it hasn't let me down yet.  That's what matters
Title: Re: How many miles
Post by: Captkaos on November 26, 2014, 11:41:40 am
The TBI in my 1990 Suburban has 379K and climbing.  I drove it all week this week.
Title: Re: How many miles
Post by: Engineer on November 26, 2014, 03:14:50 pm
Our 1997 Blazer has 300,000mi on the original engine, and transmission.
Title: Re: How many miles
Post by: Irish_Alley on November 26, 2014, 11:48:16 pm
had a great grandfather his famous words were "its not what you have, but what you take care of" meaning millage aint worth nothing if you dont change the oil/fluid
Title: Re: How many miles
Post by: roundhouse on November 29, 2014, 08:09:18 am

My truck just turned 200 k miles recently and I had been thinking of replacing it some time in the future. Yet that will not be happening. I was forced to retire and took another job at less pay so the new engine will have to wait. With all the trucks out there have any of you reached 300 k on the original stock motor?


Thanks
Joe
if the engine is running good.  Why replace it ?

The numbers on the speedo have no relationship to the condition of the engine

I've seen cars with 300k that were in excellent condition and I've seen em with 75k that were Junkers

And remember.   A chevrolet runs poorly longer than most cars run at all
Title: Re: How many miles
Post by: audrima on November 30, 2014, 06:27:22 am
when I got my 78 Gmc C25 hd, my grandpa had  500K on the od I put another 50K since then all org no rebuilds. take care of her and she will last.


^_^
Title: Re: How many miles
Post by: FlatBlack77 on November 30, 2014, 12:27:02 pm
And remember.   A chevrolet runs poorly longer than most cars run at all

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