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Tool Talk Discussion Forum

O.T. GM Engines, 5.7 vs. 5.3 (5300)

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Johnski

08-31-2006 17:52:54




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Hi All, I lurk here often in this big ol" bowl of knowledge soup dippin" in every so often to fish out a good chunk and droppin" in a little myself from time to time. I"m looking to replace my pickup(95 F-150) with a suburban to tow my camper that weighs about 7000 lbs. Should I look for a 1999 to stay with the 350 engine or a 2000 and up with the 5300? I know those year 350"s had a few problems with the EFI and intake gaskets but I know nothing at all about the newer motors as I"ve been working on Heavy Equip and diesels for the last 6 years. All opinions are welcome, thanks in advance. Jf

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Mike M

09-01-2006 20:28:42




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to Johnski, 08-31-2006 17:52:54  
As a current Ford owner you may be better off staying with Fords. I have had some of each and while I really liked the GM trucks they drove me nuts with all the problems that cropped up. I now have a 1996 Dodge with a 360 gas with 160,000 miles and it has been a very good truck.



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buickanddeere

09-01-2006 01:58:34




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to Johnski, 08-31-2006 17:52:54  
As previously stated. Once you own/drive the LS series engines in the 4.8,5.3,6.0, 6.2, 7.0 etc. The old Snoretech 350 is just an underpowered fuel waster. The 350's made a strong case for ordering diesel engines instead.Now the LS engines in some circustances are preferable over a diesel.



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BLT

08-31-2006 19:14:50




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to Johnski, 08-31-2006 17:52:54  
Looks like I am the exception, I don't want another 5.3! I owned a 96 Tahoe with the 350, never a minutes trouble, traded it in on a new 2000 with the 5.3. Big mistake, the 5.3 was under powered and would not get the gas mileage the 350 did, traded it off after 17 months and bought a crew cab with the 6.0, now that is a great engine. It now has 103k miles on and won't use any oil. I use it to tow my goosneck hauling my tractors and it does a good job.

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Bob

08-31-2006 19:51:35




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to BLT, 08-31-2006 19:14:50  
The 4.8, 5.3, and 6.0 are ALL in the same engine family, basically derivatives of the LS-1 performance engine.

So, outside of your bad luck in getting a 5.3 with problems, the 6.0 should be no better, only more HPO, as it is the same design.



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MarkB_MI

08-31-2006 19:01:59




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to Johnski, 08-31-2006 17:52:54  
How many 1999 model pickups have you come across with less than 200,000 miles? That '99 is nearly eight years old.

The 5300 is newer and mo'better.



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Johnski

09-01-2006 07:17:07




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to MarkB_MI, 08-31-2006 19:01:59  
No problem finding 98"s and 99"s with low mileage up here in Kennedy country(MA), the soccer moms and yuppies don"t have too far to drive. That said I think I"ll look for an 00"-03" with a 5300 motor.Thanks for the input Jf



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landlord7012

08-31-2006 18:58:13




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to Johnski, 08-31-2006 17:52:54  
I bought a 99 chev w/5.3 from local contractor with 230,000 miles on it. Currently have 259,000 on it. Sounds like a thresher when it starts (short piston skirts slappin' around until first couple revs) BUT it runs great! 1/2 qt oil every 3000 miles. Pulls 5000 lbs (properly balanced) effortlessly. Not sure when piston slap problem was resolved at assembly though...

ll



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jmixigo

08-31-2006 18:07:48




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 Re: O.T. GM Engines, 5.7 vs. 5.3 (5300) in reply to Johnski, 08-31-2006 17:52:54  
My father in law bought a 2000 Chevy std duty 3/4 ton with that engine in it new. I own it now. Two sets of plugs and wires, one water pump, one set of hoses and belts. Must have been a defective water pump 'cause it only lasted 208,000 miles. Now at 212,000 mi it has started useing almost a whole quart of oil between 5,000 mile changes.
I like mine-gets about 7 or 8 mpg more than the '95 with a 350 in it that I had before.

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