Circle D 4l80 converter
But there is a possibility tht they built a 80e converter spacing/flex plate pattern.
Best to call them. Also between mounting pads and flexplate u want a 1/8" gap before bolting to flexplate. Anything more than tht use the shims they sent with it. Some need shimming, some dont! Always best to measure.
U can use a 1/8" drill bit. Works great!







