1955 DeSoto FireFlite 291 Model Number: S21
Size (cu-in)	291
Power (hp)	200 @ 4400
Torque (lb-ft)	274 @ 2800
Bore (in)	3.72
Stroke (in)	3.344
Compression	7.5:1
Carburetor	4V
In Valves (in)	1.84
Ex Valves (in)	1.5
Firing Order	1-8-4-3-6-5-7-2
Left Bank	1-3-5-7
Right Bank	2-4-6-8
Dry Weight (lbs)	631