is the con rod clearing that lobe? some strokers get real close. any bind on that valve, how big is the cam? add 1 qt of lucas oil additive during breakin.
How long does it last before failure? You did follow the proper hydralic lifter adjustment & cam break-in procedure?
is the con rod clearing that lobe? some strokers get real close. any bind on that valve, how big is the cam? add 1 qt of lucas oil additive during breakin.
On my stroker motor the rod bolts on the upper side are machined to clear the cam you might have one turned around or the rod is mounted on the piston backwards