Mounts are your choice. I guess the hemi to RB K-frame work ok. Dropping it in works. Lay the headers in and lower the motor in. Once in place bolt them on. Lots like to drop the K-frame and set it all up on the K and lower the body on to it. Having the torsion bars out helps and gives more wiggle room when dropping it in from the top. Doing it that way just put the left header in place and lower the motor. The right will slide right in from underneath with the torsion bar out. Left would to if not for the gear box being in the way.