hey tony.there is like 10 bolt holes at the crank. i think the flexplate that the trans shop sold me is too small.it bolts up to the converter but the bolt pattern is smaller than the bolt pattern on the crank. so im thinking that the flexplate is for a stock 440.i tried to look up flexplate on summit but it only shows a flywheel.do they call it something else?any help would be greatly appreciated.been thying to build this car for 10 years.finally got rid of the wife and have the money to put it together.lol