I know these ez rolls are the big do do right now but heres my 2 cents.
First off, easy roll? I seriously doubt they have the same friction reducing qualities of a 'true roller' in that aspect, the name is decieving.
Being a industrial mechanic, I seen bushings wearout all the time.
Anytime we can swap out a arcahic bushed set-up with a caged roller or cam follower, we do so, they last forever then.
I know some will argue, hey these are thick bronze bushings living in oil, still, they will wear 20 times quicker than any hardened roller bearing.
IMO> This is no cure all for the problem but rather a band aide and a small one at that. Great idea, just not the fix.
I personally like Zips idea better and will be doing that to mine this winter.
Perhaps the best thing to do is be proactive rather than reactive.
First off make sure the rocker arm geometry is perfect, use the correct spring rate for your cam and stay on top of your valve adjustments.
Make notes on valves that need constant adjusting, they're trying to tell you something. :shock:
Lastly spend that $1000 dollars you didnt spend on the ez rolls and go with a good shaftmount rocker arm set-up. :lol:
JMO>Cp