I'm wanting to do another cam swap on my car sometime this summer. However, I am worried about clearances. I'm running the cc305 (.510/.510 220/230 @.050) right now, and I'm looking to go with maybe a cc306 (.510/.540) or maybe one of the extreme series cams (236/242 556/.576 w 1.6). I will be running 1.6 rockers. I already have the springs to handle the lift no problem, but I am worried about piston to valve clearance. My heads are milled .030 and I have thin head gaskets (fel-pro 1074) on a stock bottom end. I want to be sure about clearances before I go forward with this project. Anyone have any idea as to whether this will work or not?!?

 

Clay the pistions. JMHO

 

Well, I don't really want to have to pull the heads to do the swap.

 

Anyone else have any ideas here?!?