Gtr Jun Cam Install: Clearing Piston Crowns

[Ramius83]

Hey everyone. I am installing a set of Jun 10.8mm Lift, 272 Duration Cams onto my RB26 (being fully built). Now, in dealing with this "higher" lift of these cams. Will the valves clear my CP pistons? I know all about everything else and clearances and things that need to be done with the rest of the engine, but in discussing this to my significant other, I am confused. Will the higher lift cause interference between the CP piston crown and the valve? And please don't chime in unless you have valid information to give me. And don't say, "HAH, how can it if the valves are closed and the piston is at TDC." What I am referring to is when the piston is approaching TDC and the valve is closing, and vice versus when the piston is moving away from TDC and the valve is opening, will my valves strike my piston crowns without modifications? If you need any more information, please ask and I will provide. Thank you all......

[T04GTR]

no they wont. so long as you set them up with the apropriate lobe centre valve timing that jun sugests. then check with placticine on the pistons (dummy asemble) etc etc