samtodd

iTrader: (4)

You guys running turbo 5.3's are you changing ring gap at all?

oange ss

iTrader: (50)

how much boost ?

Troy5061

iTrader: (19)

Iirc .028-.030.

GTO Eric

iTrader: (6)

^^^and how many miles on the engine?

100k+ leave em alone.

samtodd

iTrader: (4)

Not alot.. It will sit around 7 or 8. might bump it now and then but its a DD.

samtodd

iTrader: (4)

and will probably have around 100k..

oange ss

iTrader: (50)

def not .028-.030, i would leave them be at that boost level

samtodd

iTrader: (4)

cool thanks!

boostit5.3

iTrader: (3)

im currently spraying the **** out of mine to loosen the rings up for the turbo

stock48

iTrader: (17)

A 100k mile engine should be fine. If low miles and running pump gas you could have a prob.

silversweetZ

iTrader: (11)

I didn't take the chance, I gapped mine to .028 and plan on running 12-15 lbs

SS2win

iTrader: (11)

ditto except I went to 0.025. I found my 87k mile 05 L33 ring gap was 0.015 before decarboning and 0.020 after. second ring was left alone as they measured 0.029

EDIT: I would leave it alone for your boost levels.

Compressor Surge

iTrader: (21)

I'd leave it alone. I gapped mine, but crushed ring lands long before the rings even thought about butting.

samtodd

iTrader: (4)

any idea how much boost is safe with leaving gap where it is? 12 lbs? more?

Thanks

Compressor Surge

iTrader: (21)

I ran my old 5.3 with an S400 to around 14 psi with stock ring gap, and it was never a problem. BUT, like these guys have been saying, it was an old wore out turd.

chiaj144

iTrader: (4)

60k on my L33. Has seen 14lbs for just over a year on stock gaps. Soon to be 20lbs or so.

CameronVic

iTrader: (5)

I aimed for .032 on mine, but ended up with about .035 (upper and lower) because I went fast. E85, 5.3, meth, 17-18 psi. I don't mind some blowby coming out of the breathers, it makes it look like I take time to armor all under the hood!

tonytone4143

how about new rings?? what would you gap them to? same dd and -lbs..
\sorry to jack your thread.

oange ss

iTrader: (50)

.022 would be pretty safe

got-a-ls1

iTrader: (12)

110k mile 5.3 (although i question if the engine was replaced before salvage cause it was so ******* clean). i ran 18-20psi with meth injection and never touched the gaps (the water helped pull heat out as well) ran for 6k miles and it loved it. only killed it with a miss shift.