BMW seats in a 69 Camaro?

[ctcz28]

I've read a lot of posts in these various forums about seat conversions and many show/contemplate using seats with the seat belts integral to the seat. As we all know, the first gen Camaro seat belts use anchors separate to the seat. Compare the size of the grade 8 mounting bolt and threaded anchor point for the first gen seat belts with the mounting bolts for the seats; huge difference. I'd be very concerned that the first gen seat mounting bolts were not designed to hold a 200 +\- person and a 40+\- seat in place in the case of an accident; do the math on that force in a 35 mph accident (let alone one higher speed). Some serious reengineeging of the OEM seat mounts should be necessary at a minimum to use seats with integral seat belts. I hope that this is something that everyone recognizes and is so basic that it doesn't warrent mention here and not simply an oversight.