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Old 10-16-2013, 07:36 AM   #1
homey55
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Should I Replace Lifters With Cams?

Since my car has about 160k on the odometer, should I be worried about wear on the lifters ruining my cams when I replace them? I have a new set of Crower stage I cams that I want to install but I was worried that worn lifters may prematurely wear the new cams. What are your thoughts on this? If I have to replace the whole valvetrain then the cams arent really worth the hastle to me,


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Old 10-16-2013, 08:34 PM   #2
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I'd install the cams. Enjoy the response.
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Old 10-16-2013, 08:54 PM   #3
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No, don't start changing the buckets unless you do a valve job and the valve stem height changes.
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Old 10-17-2013, 07:44 AM   #4
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I wouldnt change them just to be changing them , you will need to check your valve clearances with the new cams you cant just put the cams in and go so you may need to change a few to all of them to get proper valve clearances

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Old 10-17-2013, 10:05 AM   #5
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The base circle of the aftermarket cams should be the same as the oem ones & yeah, like said above its good to check the clearence. As some cams have varies spec's vs the stock spec's. I installed a set of cranes & checked & were in spec for cranes.
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Old 10-23-2013, 07:57 AM   #6
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The base circle is SUPPOSED to be the same but you are making a mistake by assuming so. The parts need to be measured like Tom says, they may well work but you could be off as far as ideal clearances. Sloppy work that could decrease the mileage of parts. I've never worked on an engine where you could leave all the same, that would be a rare bird indeed. Usually at least 2-3 need to change or swap around.
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Old 10-23-2013, 06:28 PM   #7
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If he hasn't sunk a valve, and the new cam has the same base circle (it should), then no need.

But remember rule #1 with working with engine internals:
Measure, check, and recheck. Never assume anything.
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