300x Valvetrain question

977 Views 6 Replies 5 Participants Last post by SlammedRanger, May 23, 2010

kpracing12

Discussion Starter · May 23, 2010

Hi
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.
Thanks

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kpracing12

Discussion Starter · #3 · May 23, 2010

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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