Thumper_ehhhhh

That is some good information. Thanks for posting it. So they took what they had and made it better as I thought. I like the idea of 400000 lifespan. I bookmarked that and will look closer when I get more time. Again thanks for posting it.

JK23112

I also thought the 5.3L was an "all new" engine series when it was unveiled almost ten years ago. The heads look different than what you would find on a 5.7L, and the 5.3L also has the coil-on-plug ignition system that I don't think was ever offered on the 5.7L/350 engines.

Whether or not the internals differ from the 5.7L is of little concern to me, so long as it will last just as long and perform as well. Those old 350s were nearly bulletproof!

Ford did a similar thing (changing numbers & sizes) with their new "5.0L" -- which is nothing like the old 5.0L/302 V8 that made the Mustang gallop. The 2011 Mustang 5.0L is a 'modular' overhead cam engine based on the Triton 4.6L block (used in everything from the F-150 and the Explorer to the Crown Vic and Econoline van) - but with a larger bore and stroke. The old 302 (referred to in later years as a 5.0L) dated back to the 1960s and was an overhead valve design (with pushrods).

Oddly enough, the 302 was actually closer to 4.9 liters than 5.0 -- but Ford already had a 4.9-liter (300 cid) inline-six engine that was used for many years in Ford trucks and vans. They wanted to avoid confusion and also did not want their 302 to seem like "less of an engine" in a Mustang than the Camaro's 305 V8, which also was called (correctly) a 5.0L by GM.

Besides, Vanilla Ice would not sound the same if he sang, "Rollin' in my 4.9...."

usmarine0905

I have 255,000 on my 98 2500 extended cab long bed. Does NOT burn oil, no tapping, starts rite up and still get's good milage for that model truck. Regular mantance and care keeps her running great.....

therewolf

Hi JK23112,

Welcome to the Chevy Forums.

You can Wiki all the technical details, basically the new Vortec heads and roller valvetrain give the new generation of engines more stock torque and horsepower in a smaller V8 package.

I have no major complaints about my 6.0L, 97K miles. The new V8s are much easier to do front end repairs on. The waterpump and other components aren't buried under three sets of brackets, for instance.

doverj2000

I have a chevy 1500, 2005 that does not blow air threw the front vents only floor and defrost. it does however blow warm and cold and the blend door was recently replaced 3 months ago. now im lost and have ran out of probleming shooting so im hoping some one here will have another idea. Please let me know if anyone has any ideas

Thumper_ehhhhh

Welcome to the forums. You could have started a new thread instead of hyjacking this one. I beleive they are still operated by vacuum if not someone will correct me.You might want to look for a vacuum leak. Trace the lines from the heater control back to the motor and look for a break or kink. Usually thats the problem.

doverj2000

Sorry did not mean to Hihack this one i thought i was starting a new one. Thanks for the help

Thumper_ehhhhh

hey np man. hope it works for you. If not come back and ask again explaining what you have already have done. One of us here will always help.

silverado13

if you take care of any engine on earth itll last you a long time

JK23112

10-4 on that!

I had a (purchased used in 1983) 1978 Chevette that I drove until it had 130,000 miles on it when I sold it in 1986. The rest of the car seemed to fall apart, but the engine still ran as good is at could for what it was.

My mother bought a Chevette new in 1980 and sold it to a friend of hers in 1985 when she upgraded to a new Nissan Stanza. That Chevette went to a customer of hers and stayed in their family until the summer of 2000. That's twenty years on a frickin' Chevette!

It had just over 200k on the clock and finally gave up the ghost. Even being driven in PA that long, it only had two small rust spots. Weird! Not bad for one of Detroit's most-hated cars ever produced.

We beat on those cars pretty bad back then, but we and others who drove them always gave them oil & filter changes every 3,000 miles. Imagine what good maintenance will do for newer vehicles, which are built much better and should last much longer.


P.S. A friend of mine has a Ford E-Series van (3/4 ton) that is pushing 300,000 miles on the original six-cylinder engine. Dang!