Mancini Stainless Steel roller rockers

Many rockers are inconsistent on there ratios...might be 1.5 or 1.58 or 1.53... I have read even the brand name offerings have their issues.

That said most import brands are not built to live with increased valve spring pressures.


I actually varied the ratio on my PRW rockers. They were slightly over 1.6 under load (1.61 to be pick the pepper out of the fly poop) and with the B3 correction kit I lost all of about .008 lift from lobe lift thought the pushrods and rockers.

Pretty dang nice really.