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Replace timing set or just chain?

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Old Mar 21, 2012 | 07:28 PM
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Default Replace timing set or just chain?

Just got a 5.3 Tahoe and thinking of installing a small cam (along with pushrods, valve springs, and new seals). At 97k miles, for peace of mind I'll probably swap in a new oil pump at the same time. Should I get a complete timing set or can I get away with just a new chain? Obviously, I need to inspect the gears, but generally the gears hold up way better than the chain, right?
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Old Mar 21, 2012 | 07:49 PM
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At 97,000 miles, no need to change pump. Its a gearator pump. They just don't fail!, unless u have a blow up and metal goes through it. Just swap the chain only. You'll be good!!!
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Old Mar 21, 2012 | 07:57 PM
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I never heard of a gearator pump. After a brief search, I see you probably mean gerotor pump. I've seen tons of these 5.3 engines run well over 200k miles, so they must be tough.
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Old Mar 21, 2012 | 08:46 PM
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Based on motorcycling experience I can never bring myself to install new chain on used sprockets. Besides timing sprockets are not expensive.
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Old Mar 21, 2012 | 09:52 PM
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Just go with the LS2 chain and you should be good. Its beefier. Like $40 from most GM dealerships.
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Old Mar 21, 2012 | 10:10 PM
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I like to replace the timing as a set. Yank sells the set for around $70 shipped.
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Old Mar 22, 2012 | 07:29 AM
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At 97,000 miles, no need to change pump. Its a gearator pump. They just don't fail!, unless u have a blow up and metal goes through it. Just swap the chain only. You'll be good!!
Plenty of oil pumps have failed, and upgrading it while in there already is always a good idea.
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Old Mar 22, 2012 | 09:58 AM
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agreed plenty of oil pumps fail and foor about 100 bucks its def worth the peace of mind. just get a ported ls6 or melling pump and call it it a day
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Old Mar 22, 2012 | 10:09 AM
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Yeah, an oil pump is in the neighborhood of $150-200 depending on which route you go, cheap insurance, and I'd replace the timing set as well. Guess I'm like Darkman but I always replace the sprockets. Seems with motorcycles and ATV's if you replace just the chain, the sprockets wear quicker and it also wears your chain quicker.
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Old Mar 22, 2012 | 11:13 AM
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what would be another option to the LS2 chain, I don't like the slack i've seen with those.
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Old Mar 22, 2012 | 11:19 AM
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When I did the cam in my LS1 GTO, I just replaced the timing chain with a heavier duty LS2 chain, but I had less than 20k mile. With nearly 100k on this 5.3, I'm beginning to lean towards replacing the oil pump and complete timing set. I really don't want to open it back up anytime soon.
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Old Mar 22, 2012 | 01:38 PM
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Originally Posted by pairof69s
what would be another option to the LS2 chain, I don't like the slack i've seen with those.
I like the Katech/IWIS chain sold by Thunder Racing (among others).

http://www.thunderracing.com/shop-by...Chain_349.html
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Old Mar 22, 2012 | 07:40 PM
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The IWIS chain is a lot cheaper at Scoggin Dickey.

Scoggin Dickey also has GM oil pumps with o-ring for $73 and N-Motion roller timing sets for $67.
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Old Mar 23, 2012 | 06:17 AM
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Originally Posted by batboy
The IWIS chain is a lot cheaper at Scoggin Dickey.

Scoggin Dickey also has GM oil pumps with o-ring for $73 and N-Motion roller timing sets for $67.

The IWIS chain at Scoggin Dickey is not the Katech version and is not as good as the LS2 chain.

https://ls1tech.com/forums/13825166-post2.html
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Old Mar 23, 2012 | 11:17 AM
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what about rollmaster....?
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Old Mar 23, 2012 | 02:40 PM
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Originally Posted by Darkman
The IWIS chain at Scoggin Dickey is not the Katech version and is not as good as the LS2 chain.

https://ls1tech.com/forums/13825166-post2.html
Please don't spread poorly informed hearsay as fact. It is NOT a weak chain, and is not a bottom of the barrel chain in any way shape or form. Stating that it is not as good as the LS2 chain is simply untrue and uninformed. It is a genuine IWIS chain and has been proven in thousands of builds.

It is obviously not the same IWIS chain as the C5-R chain (which we also offer) and has never been advertised as such. It is simply a reliable and affordable option for those who are not in need of a $130 timing chain. Different chains for different needs.
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Old Mar 23, 2012 | 03:56 PM
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Originally Posted by Scoggin Dickey
Please don't spread poorly informed hearsay as fact. It is NOT a weak chain, and is not a bottom of the barrel chain in any way shape or form. Stating that it is not as good as the LS2 chain is simply untrue and uninformed. It is a genuine IWIS chain and has been proven in thousands of builds.

It is obviously not the same IWIS chain as the C5-R chain (which we also offer) and has never been advertised as such. It is simply a reliable and affordable option for those who are not in need of a $130 timing chain. Different chains for different needs.
I apologize if I misinformed anyone by representing opinion as fact.

On the other hand, I never said the chain was not genuine IWIS, nor did I say it was weak. I did want to make it clear that the two chains being compared were not the same.
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Old Mar 25, 2012 | 02:11 PM
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It all depends if you want to "replace" or "upgrade"
If you cam it, I would get an adjustable chain to be able to degree the cam (advance/retard)
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