Most raised cam blocks have altered lifter bore angles, in order to help restore proper pushrod geometry. The most popular raised cam lifter bank angle (degrees from vertical) is 48 degrees, standard is 45 degrees. There were also early MOPAR Megablocks that had raised cams, havomg 47 degree lifter bank angles for B/RB applications, and 50 degrees for Hemi applications. You need to make sure of what you really have before ordering your camshaft. Regards, Chase
