Kaad
Not sure on the casting #s but a dead giveaway on a 292 is that the motor mount bolt bosses are not directly opposite each other as on all the other L6 engines.
They are staggered,as in the passenger side mount location is another 5/6 inches foward than the drivers side and the fuel pump is located behind,or to the rear of the motor mount.
Also the push rod/lifter covers are about 2 inches taller.
Hope this helps.
regards,
steve sr.
