Flex plates

If I remember correctly, you previously had some rocker arm breakage and also a broken Eagle crankshaft. Were any of the parts in this current engine carried over from the previous build with those other issues? was this torque converter on that previous build?
Good point !!! but no this is a totally different engine combo . I think I might have found the problem : when I took the motor out the passenger side motor mount rubber was broken , when I last changed the oil during winter maintenance I found loose bell housing bolts on the same side . Although I have a torque strap on the drivers side I am thinking the broken motor mount is causing the engine to move around thus causing the bolts to come loose and cracking the flex plate . I am thinking I need solid motor mounts . BTW its an ATI Super Damper rebuilt by them 2 years ago and the motor was on the dyno ( thats how I know the hp. and tq. numbers ) before installation in the car