Long Lasting 4.3

bigry2004 · #1 03-14-2005, 11:23 PM

what's the longest anyone has heard of a chevrolet 4.3 v6 motor lasting? i think the best i heard was 258k... just curious what other numbers are out there...

BlazerLT · #2 03-14-2005, 11:33 PM

Over 300k miles I have heard.

cubanlorenzo · #3 03-14-2005, 11:40 PM

my dads friend has a 92 4.3 and his has 289000 original tranny too.

BIGShorts · #4 03-15-2005, 12:05 AM

I own a 1991 4.3 vin Z with 231,000 miles on it. It's my daily driver also. Just take care of it and it should last a long time.

chcknugget · #5 03-15-2005, 10:10 AM

I've heard someone lasted only 318k miles and his engine blew, but I can't verify that.

96JimmySLE · #6 03-15-2005, 10:36 AM

My '96 has 200,000 miles and I've had no problems with it. I think the 4.3 is a great engine.

cubanlorenzo · #7 03-15-2005, 10:42 AM

yea im at 190000 on my 95. have a very small oil leak, and a slight tap. everything else is good. tranny still shifts smooth

bigry2004 · #8 03-15-2005, 02:28 PM

Quote:

Originally Posted by 96JimmySLE

My '96 has 200,000 miles and I've had no problems with it. I think the 4.3 is a great engine.

have you been driving it since 96? tranny ever replaced? [just curious]

clariveros · #9 03-15-2005, 04:48 PM

One question about durability, have any of you had to replace you water pump? and at what miliages did you do it? thanks

BlazerLT · #10 03-15-2005, 04:50 PM

130,000miles on mine with the stock pump from the factory.

Turbocpe · #11 03-15-2005, 05:35 PM

Quote:

Originally Posted by clariveros

One question about durability, have any of you had to replace you water pump? and at what miliages did you do it? thanks

Changing the waterpump is not too bad, if that is your concern. I recently just replaced mine several weeks ago, at 65K. I may have gotten a bad one from the factory, to replace that one as soon as I did.

96JimmySLE · #12 03-15-2005, 06:37 PM

Quote:

Originally Posted by bigry2004

have you been driving it since 96? tranny ever replaced? [just curious]

I had the tranny rebiult at about 150,000 miles and I've had it since '96. I've done some minor repairs/replacements to the engine but nothing major.

ricksza · #13 03-15-2005, 08:59 PM

I just bought my Blazer at 122K knowing how well they last. Let's face it, the 4.3 is basically just a small block chevy which has been around for 50 years, just refined.

clariveros · #14 03-15-2005, 11:11 PM

Quote:

Originally Posted by Turbocpe

Changing the waterpump is not too bad, if that is your concern. I recently just replaced mine several weeks ago, at 65K. I may have gotten a bad one from the factory, to replace that one as soon as I did.

That is exactly my concern from previous cars that i or my famiy have had, some water pumps have almost been impossible to change. there is nothing wrong with it now, nock on wood, and hopefully it will last a long time, but i was just wondering, thanks for you reply.

Turbocpe · #15 03-16-2005, 01:30 AM

When mine started leaking, I was pretty concerned about the job myself, never doing it before. The biggest issue is separating the fan from the clutch. There is a tool for doing this, and the two are on there tight.

That really is the only slightly bad part of it. The pump is not too hard at all to get at, and change, once you get the above accomplished.

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