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Old Aug 12, 2006 | 11:48 AM
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Default changing lifters ..

should i change the lifters if i want to install a big cam ??

i know that you must change the springs and the connecting rod ... but what about the lifters ??
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Old Aug 12, 2006 | 11:57 AM
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I am doing an MS4 as we speak, with LS6 Stage 1 Heads. No prob keeping stock lifters.
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Old Aug 12, 2006 | 11:57 AM
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You need some after market push rods not connecting rods with your cam swap..I have been running the stock OEM lifters for 117K miles with a 233\233 595\595 112 cam ... I am getting ready to swap in a different cam and I will replace the OEM lifters with a new set of OEMs at that time.
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Old Aug 12, 2006 | 12:29 PM
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Originally Posted by private_red
should i change the lifters if i want to install a big cam ??

i know that you must change the springs and the connecting rod ... but what about the lifters ??
Idealy yes if the cam has over .600 lifts and a few miles on them.
This is especialy true with 97-98-99-00 because of the OEM lifter design.
01 & 02 had LS6 lifters wich are more tolerant.

You mentionned in another thread that you are putting new heads on so I would at least do Comp 850-16 with the G5X3 you're planning to run.
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Old Aug 12, 2006 | 03:24 PM
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thank you for help ..
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Old Aug 12, 2006 | 04:23 PM
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If you have some miles on the engine i would always change lifters when you have the chance. It can prevent som MAJOR trouble later on
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Old Aug 12, 2006 | 05:07 PM
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Originally Posted by PREDATOR-Z
This is especialy true with 97-98-99-00 because of the OEM lifter design. 01 & 02 had LS6 lifters wich are more tolerant.
I thought the fully encapsulated lifter from the erlier years was the stronger of the two.

How many miles on the car, and did you plan on pulling the heads off anyway?
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Old Aug 13, 2006 | 12:28 AM
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Well all i can say is yes its a good idea on earlier model ones with 50k plus on the odometer.... and DONT get Comp R's what ever you do, this will cause a pain in your *** after wards
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