Ok, so I do believe I have the one Buick 225 V6 Dauntless with a one off crankshaft.
Since my last post, I ordered 2 new flex plates, for a grand total of 8 that I’ve tried. I am 100% positive that I have a Dauntless, and none of the ones I’ve ordered have fit.
I ordered a Z-117 and the center hole is too small and the bolt holes do not line up.
The Z-111, for an even fire Buick V6, did fit the center hole, but bolt holes did not line up.
I ordered a Z-145 for a Buick 252 V6 and center hole fit, but bolt pattern did not line up.
I’ve tried a flex plate for a Buick 300 V8, and center hole fit, but bolt holes did not line up.
If you’ve any other ideas, please do share because even after spending thousands on a rebuild and parts, I’m at the point where I’m considering buying a different motor.