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Old 12-05-2024, 08:22 PM   #1
Tim M

 
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Drives: 2018 Camaro SS 1LE
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Location: Stuttgart, Germany
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Aftermarket Lifter Durability?

Greetings!

We are doing an upgrade to our 416 CI powerplant that uses a mild Cam Motion cam, Johnson 2110K (Katech) lifters and fairly firm PSI 1516 springs.

We've only got ~10K miles on the combination.

Any experience on when to send the lifters in for a refresh?

Previously in a 96 LT4 combination (Gen II) I hit ~50K on OEM lifters, Comp Cams roller rockers, fresh beehive springs and healthy GM 847 roller cam - at which point I mushroomed a valve tip. Comp Cam pointed to race engine parts - don't expect OEM reliability. Just curious what people expect.

Thanks.

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Old 12-05-2024, 09:54 PM   #2
KingLT1


 
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If everything is setup correctly It should need valve springs replaced before lifters.
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Old 12-09-2024, 03:27 PM   #3
Katech_Mike

 
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Valve springs every 25-30k miles to be safe.

We typically don't change the lifters unless something else in the engine came apart running debris through them.
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Old 12-09-2024, 03:59 PM   #4
Tim M

 
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Thanks, gents. We will leave the lifters alone and swap the springs since it is convenient.
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