2008 Silverado 5.3 - 10 out of 16 springs broken - stock motor

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01-17-2012, 07:40 AM

#11

Tootall

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Quote:

Originally Posted by MyLS1Hauls

Makes me wonder if you were floating the valves, which caused the springs to break. Revving a stock DOD 5.3 to 6500 is just a waste, honestly...power has already fallen off with that tiny cam they have.

It's not my truck, but a customers . . .

Yes I know that power falls off at 5400 with the stock cam, anything past 6k is pointless

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01-17-2012, 03:41 PM

#12

Foxxer

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5.3 DOD + 6000 and over revving is a bad idea, had a lifter tapping after just 35k miles.

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01-19-2012, 12:33 AM

#13

Jess13

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The other thing could be lack of warm up.
When the springs are cold they are more brittle, and if the customer starts up the truck and beats the **** out of it. Stuff like that would happen.