All measurements taken off of flywheel.
All measurements in inch
Center hole for pilot bearing "Diameter" = 1.2560
Flywheel bolt hole size "Diameter" = .4115 x 8 bolt holes
Edge of "center hole for pilot bearing" to Edge of "flywheel bolt hole" = .4695 x 8 equal spaces
Edge of "flywheel bolt hole" to Edge of "flywheel bolt hole" = .5850 x 8 equal spaces
Hope this helps just hit me up if you need mor info.