July 22nd, 2015, 10:40 AM
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- Chevrolet Silverado 1999-2006 GMT800 5.3 L V8 vs. 5.7L V8 Engine Differences
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5.3L versus 5.7L V8 "Vortec" Engines
November 29th, 2015, 7:16 PM
#81
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I have a 2003 Tahoe with the 5.3 engine. 197767 miles and going strong. Burns no oil. Does click when first cranked in cold weather for about 30 seconds. Engine light has been on and off for the last 5 years and now is on. Techs don't know why it is on.
May 25th, 2016, 10:57 PM
#84
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We all know and love the venerable Chevrolet 'small block' V8 engine that has been under the hood of many different GM cars and trucks - as well as being offered in various displacements from 265 to 400 cubic inches throughout the past five decades.
The best-known and most-beloved has to be the "350" or 5.7-liter version; especially with Chevrolet and GMC trucks. They are powerful, tough, reliable and it is relatively easy to "soup up" or increase their performance.
Now, at least with full-size Silverado & Sierra trucks, the times have changed and GM replaced the 5.7L with the newer 5.3L back in 2001 or so. I own a (purchased used) 2004 Silverado with the 5.3L and have about 84,000 miles on it. It runs strong, doesn't burn oil and has the low-end grunt for which the Chevy small block is famous.
The 5.7L and 5.3L are both OHV engines, two valves per cylinder and use timing chains rather than belts (Yes!). Aside from what appears to be a coil-on-plug (hence, the short wires), are there any other major differences? Are they still made with both two-bolt and four-bolt main blocks? Is it true they now are using aluminum cylinder heads rather than cast iron? Are they similar on the inside of the engine?
Does the 5.3L have the longevity of the venerable 5.7L? I have a friend with an '02 5.3L and he is approaching 150,000 miles with it - and with no engine trouble at all. Sounds like the old 350 to me!!
I take good care of my vehicles and use Mobil-1 synthetic oil; which I change every 3,000 to 3,500 miles whether it needs it or not. I also change the oil filter every time - and intend to do so as long as I have this truck.
Can I realistically expect 250k from my 2004 without an engine or tranny rebuild? I drive about 70 percent highway and 30 percent city and my engine has about 3,200 hours on it so far (again, I bought it used last February with 74,000 miles). I don't drive like an old man, but don't beat on it either.
I have had a "BG" fuel-injection service done, a DexCool radiator flush; as well as a "BG" transmission flush back at 76,000 miles. At 90k, it is going to get a power steering fluid flush done (again - last done at 40k) and the rear differential will be serviced. I am also considering new shock absorbers and a wheel alignment when I get the next set of tires installed. Once I hit 100k, I am going to have the sparkplugs replaced - as recommended by Mr. Goodwrench himself.
Anyone here have more than 150k on the 5.3L engine? Any problems? I have always been a "Ford" guy (hey, I admit it) and still love the Mustang and their Super Duty trucks - although they are WAY TOO EXPENSIVE; but I like my Chebby and plan on keeping it for a long time (since it will soon be paid off).
I appreciate any advice or input! Thank you so much!!
P.S. It is 2wd Silverado LS 1500, although it is shod with 4x4 rims (17-inchers) that a previous owner must have installed.
The best-known and most-beloved has to be the "350" or 5.7-liter version; especially with Chevrolet and GMC trucks. They are powerful, tough, reliable and it is relatively easy to "soup up" or increase their performance.
Now, at least with full-size Silverado & Sierra trucks, the times have changed and GM replaced the 5.7L with the newer 5.3L back in 2001 or so. I own a (purchased used) 2004 Silverado with the 5.3L and have about 84,000 miles on it. It runs strong, doesn't burn oil and has the low-end grunt for which the Chevy small block is famous.
The 5.7L and 5.3L are both OHV engines, two valves per cylinder and use timing chains rather than belts (Yes!). Aside from what appears to be a coil-on-plug (hence, the short wires), are there any other major differences? Are they still made with both two-bolt and four-bolt main blocks? Is it true they now are using aluminum cylinder heads rather than cast iron? Are they similar on the inside of the engine?
Does the 5.3L have the longevity of the venerable 5.7L? I have a friend with an '02 5.3L and he is approaching 150,000 miles with it - and with no engine trouble at all. Sounds like the old 350 to me!!
I take good care of my vehicles and use Mobil-1 synthetic oil; which I change every 3,000 to 3,500 miles whether it needs it or not. I also change the oil filter every time - and intend to do so as long as I have this truck.
Can I realistically expect 250k from my 2004 without an engine or tranny rebuild? I drive about 70 percent highway and 30 percent city and my engine has about 3,200 hours on it so far (again, I bought it used last February with 74,000 miles). I don't drive like an old man, but don't beat on it either.
I have had a "BG" fuel-injection service done, a DexCool radiator flush; as well as a "BG" transmission flush back at 76,000 miles. At 90k, it is going to get a power steering fluid flush done (again - last done at 40k) and the rear differential will be serviced. I am also considering new shock absorbers and a wheel alignment when I get the next set of tires installed. Once I hit 100k, I am going to have the sparkplugs replaced - as recommended by Mr. Goodwrench himself.
Anyone here have more than 150k on the 5.3L engine? Any problems? I have always been a "Ford" guy (hey, I admit it) and still love the Mustang and their Super Duty trucks - although they are WAY TOO EXPENSIVE; but I like my Chebby and plan on keeping it for a long time (since it will soon be paid off).
I appreciate any advice or input! Thank you so much!!
P.S. It is 2wd Silverado LS 1500, although it is shod with 4x4 rims (17-inchers) that a previous owner must have installed.
June 2nd, 2016, 11:28 AM
#85
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Wrong Chap
The 5.3 also known as 327 has been around for more years as the 350. 1962 was there first year gm uses the 327 and the 350 wasnt introduced until 1967. So says wikipedia. Minus a few horsepower and torque they are a strong tried and tested work horse. I have 170000km on my 04 Burban and know many people with well over 200000 on there 5.3 and still going strong. Mine also burns no oil. Its the same level over the coarse of the oils life. 5000km. If you keep taking care of it there should be no reason it shouldnt keep going.
June 5th, 2016, 9:05 AM
#86
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We all know and love the venerable Chevrolet 'small block' V8 engine that has been under the hood of many different GM cars and trucks - as well as being offered in various displacements from 265 to 400 cubic inches throughout the past five decades.
The best-known and most-beloved has to be the "350" or 5.7-liter version; especially with Chevrolet and GMC trucks. They are powerful, tough, reliable and it is relatively easy to "soup up" or increase their performance.
Now, at least with full-size Silverado & Sierra trucks, the times have changed and GM replaced the 5.7L with the newer 5.3L back in 2001 or so. I own a (purchased used) 2004 Silverado with the 5.3L and have about 84,000 miles on it. It runs strong, doesn't burn oil and has the low-end grunt for which the Chevy small block is famous.
The 5.7L and 5.3L are both OHV engines, two valves per cylinder and use timing chains rather than belts (Yes!). Aside from what appears to be a coil-on-plug (hence, the short wires), are there any other major differences? Are they still made with both two-bolt and four-bolt main blocks? Is it true they now are using aluminum cylinder heads rather than cast iron? Are they similar on the inside of the engine?
Does the 5.3L have the longevity of the venerable 5.7L? I have a friend with an '02 5.3L and he is approaching 150,000 miles with it - and with no engine trouble at all. Sounds like the old 350 to me!!
I take good care of my vehicles and use Mobil-1 synthetic oil; which I change every 3,000 to 3,500 miles whether it needs it or not. I also change the oil filter every time - and intend to do so as long as I have this truck.
Can I realistically expect 250k from my 2004 without an engine or tranny rebuild? I drive about 70 percent highway and 30 percent city and my engine has about 3,200 hours on it so far (again, I bought it used last February with 74,000 miles). I don't drive like an old man, but don't beat on it either.
I have had a "BG" fuel-injection service done, a DexCool radiator flush; as well as a "BG" transmission flush back at 76,000 miles. At 90k, it is going to get a power steering fluid flush done (again - last done at 40k) and the rear differential will be serviced. I am also considering new shock absorbers and a wheel alignment when I get the next set of tires installed. Once I hit 100k, I am going to have the sparkplugs replaced - as recommended by Mr. Goodwrench himself.
Anyone here have more than 150k on the 5.3L engine? Any problems? I have always been a "Ford" guy (hey, I admit it) and still love the Mustang and their Super Duty trucks - although they are WAY TOO EXPENSIVE; but I like my Chebby and plan on keeping it for a long time (since it will soon be paid off).
I appreciate any advice or input! Thank you so much!!
P.S. It is 2wd Silverado LS 1500, although it is shod with 4x4 rims (17-inchers) that a previous owner must have installed.
The best-known and most-beloved has to be the "350" or 5.7-liter version; especially with Chevrolet and GMC trucks. They are powerful, tough, reliable and it is relatively easy to "soup up" or increase their performance.
Now, at least with full-size Silverado & Sierra trucks, the times have changed and GM replaced the 5.7L with the newer 5.3L back in 2001 or so. I own a (purchased used) 2004 Silverado with the 5.3L and have about 84,000 miles on it. It runs strong, doesn't burn oil and has the low-end grunt for which the Chevy small block is famous.
The 5.7L and 5.3L are both OHV engines, two valves per cylinder and use timing chains rather than belts (Yes!). Aside from what appears to be a coil-on-plug (hence, the short wires), are there any other major differences? Are they still made with both two-bolt and four-bolt main blocks? Is it true they now are using aluminum cylinder heads rather than cast iron? Are they similar on the inside of the engine?
Does the 5.3L have the longevity of the venerable 5.7L? I have a friend with an '02 5.3L and he is approaching 150,000 miles with it - and with no engine trouble at all. Sounds like the old 350 to me!!
I take good care of my vehicles and use Mobil-1 synthetic oil; which I change every 3,000 to 3,500 miles whether it needs it or not. I also change the oil filter every time - and intend to do so as long as I have this truck.
Can I realistically expect 250k from my 2004 without an engine or tranny rebuild? I drive about 70 percent highway and 30 percent city and my engine has about 3,200 hours on it so far (again, I bought it used last February with 74,000 miles). I don't drive like an old man, but don't beat on it either.
I have had a "BG" fuel-injection service done, a DexCool radiator flush; as well as a "BG" transmission flush back at 76,000 miles. At 90k, it is going to get a power steering fluid flush done (again - last done at 40k) and the rear differential will be serviced. I am also considering new shock absorbers and a wheel alignment when I get the next set of tires installed. Once I hit 100k, I am going to have the sparkplugs replaced - as recommended by Mr. Goodwrench himself.
Anyone here have more than 150k on the 5.3L engine? Any problems? I have always been a "Ford" guy (hey, I admit it) and still love the Mustang and their Super Duty trucks - although they are WAY TOO EXPENSIVE; but I like my Chebby and plan on keeping it for a long time (since it will soon be paid off).
I appreciate any advice or input! Thank you so much!!
P.S. It is 2wd Silverado LS 1500, although it is shod with 4x4 rims (17-inchers) that a previous owner must have installed.
June 21st, 2016, 9:05 PM
#87
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Mileage !!!!!
I have an 03 Z71 extended cab, 370,000 miles and just replaced the tranny last month. Still runs strong and carries 40 lb oil pressure at idle. Small oil leak and a noisy lifter when it feels like it. I drive 200 miles to work and back through the LA traffic. Am finishing restoration on a 64 nova with a 350 then will build a 5.3 for the truck
July 11th, 2016, 3:37 PM
#88
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1996 Chevy Silverado
I've got myself a1996 Chevy Silverado single cab short bed with the v6 262ci engine, and I'm proud to say it has close to 330,000 miles on the engine and it's still going strong, the funny part is this was actually my dads truck originally. He sold it to a friend, who traded it in, and then the guy I bought it from bought it at the used car lot, round trip of 3,000 miles from my dad to me over a 4 year period. And I bought this truck to help remind me of him. And it looks exactly the same, except for a new paint job and a grill
September 28th, 2016, 11:57 AM
#89
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2003 Avalanche
So today's 5.3L is the same 327 that was in my grandfather's 1969 Impala? Are you sure about that?
I thought the newer 5.3L was a totally different block than the "old" 283, 305, 307, 327, 350, etc. -- and that the 4.8, 5.3 and 6.0L engines have a different type of cylinder head & coil-on-plug distributorless ignition.
Anyway, at least they are still overhead valve engines with timing chains rather than those stupid belts.
I have 84,000+ miles on my 2004 and plan to hang onto it for awhile.
I thought the newer 5.3L was a totally different block than the "old" 283, 305, 307, 327, 350, etc. -- and that the 4.8, 5.3 and 6.0L engines have a different type of cylinder head & coil-on-plug distributorless ignition.
Anyway, at least they are still overhead valve engines with timing chains rather than those stupid belts.
I have 84,000+ miles on my 2004 and plan to hang onto it for awhile.
October 4th, 2016, 10:11 PM
#90
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5.3l flex fuel 2002 suburban over 300000 runs like new
I have a 2002 suburban ls 4x4 with a 5.3l flex fuel motor I have 306578 miles on it dosent burn oil runs perfect I have replaced the intake manifold with the doorman one put on a spectre cold air intake and flowmaster catback exhaust and ported and polished the throttlebody all else on the engine is stock