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Thread: New Piston Rings
08-05-2007, 12:30 PM #1
New Piston Rings
I have a 90 Burban with a 350 FI engine. I need new piston rings. I was wondering what is the average cost to me if I have a mechanic do the job.1990 Chevy Suburban (4WD)
08-05-2007, 02:00 PM #2
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I'd say between 1000 and 1500 at least. Going that deep into the motor is going to be considered an engine rebuild. How do you know you need rings anyways?Christopher
1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 199K miles
2005 Saturn ION-2 Stock 255K miles
1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half
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08-05-2007, 02:35 PM #3
Well, I have to add a quart of oil about every 2 weeks. there are no leaks anywhere.
I am suspecting that the oil is being burned because of blowbye, due to worn rings.1990 Chevy Suburban (4WD)
08-05-2007, 03:05 PM #4
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- River Ridge Louisiana-4 miles W of New Orleans-didn't flood-water stopped 800 yards away.
New Goodwrench motor for ~$1600
If it is going to cost you $1000-$1500(and that seems about right considering shop labor is $100/hr or so), you might as well get a new-not rebuilt,new-GM Goodwrench motor for the same $1500-$1600. I'm planning to do the same thing with my 196,000 mile motored Suburban(which is running good).It is possible it is just valve guide seals-does it give a good puff of smoke at startup,and then not smoke after warmup?
If you have a lot of blowby it should run like crap(power down,and missing),and the plugs should be fouled?
08-05-2007, 03:36 PM #5
have you done a compression test? or a leak down test? the leak down will show if the rings are bad and you can get a short block almost anywhere for $499+ depending on what add ins you add. i do a leak down and see if it is valve guides or rings....mikeMichael Collins
1993 4X4 Suburban
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