A 455 "Rocket" is an Oldsmobile engine. Though they were essentially the same as a Chevy, Pontiac, or Buick 455, their cubic inches were all slightly different depending on which engine you had.
I feel you on the pix i wish he had betr pix but thats him .. as far as $17k being to much its $17k or best offer he aint looking to get the whole $17k we ready to negotiate ... thanx for feedback i just hit him sayn we need more pix of the car