CHESTNUTXE 7,314 Posted September 12, 2016 I just watched on you tube a comp cams video on 4 pattern hyd roller cams,because the runners are longer and some are shorter the cam is ground differenly,very good to watch. Share this post Link to post Share on other sites
Lord_fahrquhar 2,580 Posted September 12, 2016 For the weribee/elifabeff/joondalup/rocko crew a 4 pattern cam is not a different lobe on 4 different cam lobes. Share this post Link to post Share on other sites
broken-wheel 659 Posted September 17, 2016 at the end of the day if you're going for an engine master record then yes Share this post Link to post Share on other sites
