Chevy truck 6.0 liter question - Page 2

moparts · #11 03-02-2008, 04:47 AM

I have been doing a search on gm dealerworld looking for info on this topic. Not arguring with anyone just passing on what I found. The only engine with piston slap info was the 4.8L. All others was wrist pin noise, corrected with floating pins in the 2005 year model.

**Tommy** · #12 03-02-2008, 06:52 PM

My 06 has the 4.8. It's a slug.... I can hear all 8 high fiving each other on start up but it quiets down. Runs great but again.... It's a slug....

I have heard the 4.8 and 5.3 are the same block and if so I may inquire later in the trucks life about installing a 5.3 rotating assembly if possible. I like the truck but will never buy another truck with the "little" engine. I have a 95 Silverado with a 350 that will run circles around the 06.

Tommy

**1969l78** · #13 03-02-2008, 09:11 PM

Yeah and the 95 is like 200 hp loved that truck-never any problem except wiper motor went out like 3 times

Hylton · #14 03-03-2008, 12:17 AM

My LS1 SS has the piston slap as well as my 6.0 Vortec in the Yukon on start-up. Just have to live with the noise I guess.

Chevy454 · #15 03-03-2008, 07:54 PM

Here are some TSB's on the piston slap in the LS engines...when I had my SS, I seem to remember a TSB specifically outlining the problem as excessive clearance on like the rear most cylinders of each bank maybe, but I can't find seem to find it...anyway:

#01-06-01-022
#01-06-01-028
#01-06-01-028A

Keith Tedford · #16 03-03-2008, 10:59 PM

It is my understanding that, a few years ago, GM with to short skirt pistons across the board to cut down friction. A friend's Impala sounded like a diesel on startup but never gave any trouble. Kind of hard to sell a noisy engine like that though. Forged pistons in loose bores used to do similar things until they warmed up.

moparts · #17 03-11-2008, 01:31 AM

Thats all old stuff what I looked up is for the 03 model year!

Hylton · #18 03-11-2008, 10:09 PM

[ QUOTE ]
Thats all old stuff what I looked up is for the 03 model year!

[/ QUOTE ]

It is? You should have let my 04 Yukon know that!

**302moz** · #19 03-12-2008, 04:36 AM

1969l78 what is the 05 2500 you have for sale , long box , extended cab , color , engine???? please reply I am looking for a 2500 hd thanks John

**1969l78** · #20 03-12-2008, 04:58 PM

I sold it last week sorry it was a short box chorcoal gray, 6.0 motor LS model. had 21,800 miles. Again sorry