I have Comp Cams Pro Magnum Roller Rocker Arms part # CCA-1305-16 on summits website. I was wondering if there will be valve cover clearance issues with the valve covers and bolts. Also do you normally have to take the rockers off to re-tighten the head bolts. Its a new engine and it would need to be done.

 

Yes there would be an interferance issue between the rockers and covers. The covers could be easily clearanced to fit by grinding some support webs. I didn't think it was necesury to rethight the head bolts.

 

Yes, you need to clearance the valve covers. There's a few threads about it on here.