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Common reliability upgrades.

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Old Apr 11, 2012 | 12:05 PM
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Default Common reliability upgrades.

I see a lot of post about LS2 timing chains and upgraded rod bolts, LS2 oilumps, chain damper etc.

How many of these upgrades made their way into the truck engines as stock pieces and by what year?

Last edited by 96capricemgr; Apr 11, 2012 at 04:51 PM.
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Old Apr 11, 2012 | 06:03 PM
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The LS2 chain and gears (chain is a little wider) made it into all LS based gen 4 engines by 2005 I believe and the same with the 2nd gen conn rods . As far as the LS6 oil pump is concerned I have no idea but if You Google what You need to know it's usually there . For instance "2005 chevy 5.3L has ls6 oil pump" and You'll have a million hits to read .
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Old Apr 11, 2012 | 06:11 PM
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i always upgrade to a self ported, shimmed stock oil pump.
upgraded pushrods and springs on high mile motors. ls2 or double roller timing chains. and i use engine oil coolers using the stock 6.0 hd truck oil cooler lines and block.
im always hunting for em on ebay or classifieds or jy. excellent upgrade. and very easy to adapt to just about any ls vehicle.
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Old Apr 11, 2012 | 06:24 PM
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chrisfrost my truck is an 05 and I found an 04 LQ4 for it. I thought both were gen 3 engines. Thought gen 4 didn't start till 07?
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Old Apr 11, 2012 | 08:00 PM
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Originally Posted by 96capricemgr
Thought gen 4 didn't start till 07?
We'd agree with you, but then we'd all be wrong...
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Old Apr 11, 2012 | 09:08 PM
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OK so then what should I change on an 04 LQ4 to put it in place of an 05 5.3l?
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Old Apr 12, 2012 | 07:42 PM
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If my 2005 5.3L is a gen 4 would the intake be an upgrade over an 04? Both are 3bolt TBs so I think they are the same but then again I was wrong about the gen3 to gen 4 split year.
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