This is the reply I got from Crower.
no real maintenance, except inspection (thumb roll test) if you have any questions you can send them in. i wouldn't worry about it now unless you have extreme spring pressure.
----- Original Message -----
From: micks74
To: info@crower.com
Sent: Sunday, March 12, 2006 3:15 PM
Subject: Maintenance
I ordered cam P/N 15480 solid roller cam and lifters from you guys about 3 years ago. Have roughly 1500 miles on the engine since. My question is what maintenance do I need to do in the future to the lifters?
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