Will your 1966 Chevy pickup cab and front end fit on 92 frame?

No, a 1966 Chevy pickup cab and front end will not fit directly onto a 1992 Chevy truck frame. The frames are completely different sizes and configurations. The 1966 is a much narrower, shorter wheelbase truck. A massive amount of custom fabrication would be required to make this work, and it would be a very significant undertaking.