I know why they designed it, but I would not have put on the market knowing it made noise. I even removed the engine, disassembled it, & checked everything. Had to buy new gaskets & rings. Then I called Comp cams & they sent me the lifters. Another intake gasket & oil change. Then I bought the GM lifters. Not cheap. Also another intake gasket & oil change. All total I have spent close to $600.00 chasing a noise that Comp Cams knew about.