Nothing is for certain, right. The rockers on the drivers side did touch the valve cover. At 10 pm it wasn't fun to hear and they did clack pretty loud. They touched the baffle so slightly that there were no marks. Used the old trusty hammer to flatten the baffle some, clayed the rockers and buttoned it up and now I'm happy again. Other than that they install easily with no other issues. They are quieter than stockers and since I went up in cam size at the same time that also is nice
They are pretty. It's a shame to have to hide them.

 

No doubt.. Mine seem to be doing well too.. I didn't have any issues with them touching the valve covers, but they were extremely close to the head wall on each end.

 

In my case the only rocker close to the wall is number one at the top. Eyeballing looks like between a 1/16 and 1/32 inch. It seems that there will be no big install issues for most. But the head castings do vary for sure.
I should add that I installed a cam at the same time. It's a 228/588. But the rocker did not touch on the pushrod side.

 

Where did you guys buy these? Did you get them from Nate in the GP section? I'm going to need to get a set of these........

 

Yes, Nate.

 

Yep, got em from Nate.. They're so pretty, I didn't want to cover em up or get oil on em They're working very well for me so far... Pretty quiet too..

 

ordered mine last week, i cant wait to install

 

You will really like them.
Here's my tip of the day. When the install is complete and you're ready for the valve covers, keep the coil packs disconnected, bolt down the valve covers and turn the engine over. If you have clay use some. This way if anything touches you will not have to remove everything. Mine is probably a little unique, but why not check?
Enjoy them.

 

I wonder if my valves are seated a little deeper?

 

Any idea if these would yeild any power gain over the stock rockers?

 

does it matter if you have the center bolt valvecovers or not

i have heard that with out the centerbolts they will touch