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300x Valvetrain question

977 Views 6 Replies 5 Participants Last post by  SlammedRanger
We have a 2009 300x race engine with a high lift and long duration cam and aftermarket springs in it. It has worn away one lobe on the exhaust side and worn a deep section away on the rocker. I don't think its short of oil as the inlet lobe / rocker arm is ok.
Any reason for this.
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Oil- don't think so as only efeected the exhaust lobe.
Engine was built in the USA and I have noticed on the Webcam site you need hardened rockers and I am not certain this has been done.
Just wondering if anyone else has had this problem
I am in Australia and parts are not available for the 300x here
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