Cm871 valve cam part number mystery

[Rawze]

(06-28-2017 )AussieISX Wrote:  Based on the information in the literature I posted the link too , I can't see anything to say the older narrow levers are not compatible with the newer wider cams, it states the new wider rollers are not backwards compatible with the old pn narrow lobes

My own opinion is that if you go with older rocker levers on the new cam, then in the future, say in another 500k miles, if you have to replace one for any reason, the older ones may no longer be available. Now the trouble lies in the fact that you have lobe wear pattern the matches older rollers and suddenly installing newer wider rollers on an old cam that had shorter ones may become an issue.

Just my own thoughts on it. If I owned it, I would update all of it or stick with the older style if I could instead of playing mix and match. You never know what the future might hold.