It is possible to convert a 16V / 20V Silvertop crank pulley to be partly suitable with a Blacktop by machining 1.7mm of the rear center facial area, having said that the outer row will not be suitable due to the main difference in length between the two rows. For https://garrettdjmki.azzablog.com/34813600/facts-about-blacktop-20v-4age-revealed