ronnieabene

iTrader: (28)

I have a 02 z28 LS1 How much lift can you have before getting the piston to close to the valve.

Jon@Texas-Speed

iTrader: (18)

There is more than lift that goes into PTV. I would say it is more relative to duration than anything. It depends on the LSA the cam is on and how much advance as well. Some cams you can get away with .650"+ and others just over .600". Depends what profile you are looking at using...

Jon