• Bodies
  • Longer hood.
  • One inch higher radiator.
  • Roof and rear quarter lines of closed cars softened.
  • Liberal use of non-functional landau bars (buggy bows).
  • Two-passenger Coupe has blind quarters.
  • More interior room.
  • Lower seating position in closed cars.
  • Ventilator door set flush in cowl.
  • 1-1/2 in. narrower windshield posts.
  • Full width, curved division windows.
  • Automatic, vacuum operated windshield cleaner.
  • Bowl shape replaced bell shape of headlight bodies.
  • Five passenger Sedan with Imperial division offered.
  • New seven passenger Sedan offered mid-year.
• Chassis
  • Front wheel brakes added.
  • Service brake pedal acts on rear external and front internal bands.
  • Emergency brake lever acts on rear internal bands.
  • Front axle/steering knuckle design changed to reversed Elliott type.
  • New tie-rod with adjustable ball and socket ends moved from front to rear of axle.
  • Two cross members added to frame.
  • 145 in. wheelbase special chassis once more made available.
• Drive line: No significant changes
• Engine
  • The engine is much the same as the Type 61 cars except for the new harmonized and inherently balanced two-plane crankshaft and the revisions dictated by this system.
  • Firing order changed to 1L-4R-4L-2L-3R-3L-2R-1R.
  • Flywheel weight reduced as a result of increased flywheel effect of compensators and larger (2-3/8 in. dia.) crankshaft.
  • Sixteen cams on camshaft.
  • Rocker arms and plate redesigned.
  • Chain adjustment no longer needed - a result of 1/4 in. wider chains and greater smoothness of engine.

Note: All Cadillac V-8's up to this time had been designated Type 51, Type 53, etc., through Type 61; with no -A, -B, etc. to designate the first or second year of a two year production run (57, 59, 61). For 1924-1925, the designation became V-63; not Type V-63, not Series V-63, just V-63. However, some Cadillac master parts books covering V-63 plus Type 59 and Type 61 do refer to Type 63. Further, these parts books refer to 63-A and 63-B in reference to early vs late or 1924 vs 1925 V-63 chassis as well as body differences.

ENGINE

Engine Type	Ninety degree V-8. L-Head. Cast iron blocks of four on Aluminum crankcase.
Bore and Stroke	3-1/8 x 5-1/8 in.
Displacement	314.5 cu. in.
Brake Horsepower	"over 80 horsepower"
S.A.E./N.A.C.C. H.P.	31.25.
Main bearings	Three.
Valve lifters	Rockers with roller cam follower acting on mechanical lifters
Carburetor	float feed, auxiliary air control; manufactured by Cadillac under C. F. Johnson patents.

CHASSIS

Item	V-63	Special Chassis
Wheelbase	132 in.	145 in.
Front/Rear Tread	56 in.	56 in.
Tires	33 x 5	33 x 5

TECHNICAL

Transmission	Selective sliding gear transmission. Case in unit with engine
Speeds	3 Forward and 1 Reverse
Controls	Left drive, center control (right hand drive optional)
Clutch	Multiple disc, dry plate clutch
Drive	Shaft drive
Axle	Spiral bevel, full floating rear axle
Overall ratio	4.50:1, 4.91:1
Brakes	Mechanical brakes on four wheels
Wheels	Wood artillery wheels, demountable rims, 12 spoke
Wheel size	23 in.
Optional Drive ratio	4.15:1

OPTIONS

All nickel headlamps, radiator shell, and hubcaps	-
Wire wheels	-
Disc wheels	-
Five balloon tires on disc wheels	$140.00
Six balloon tires on disc wheels, plus double carrier for spares	$215.00
Five balloon tires on wire wheels	$225.00
Six balloon tires on wire wheels, plus double carrier for spares	$315.00

HISTORICAL

• Introduced September, 1923.
• Innovations:
  • Compensated, inherently balanced, two-plane crankshaft.
  • Four wheel brakes.
• Model year sales: 35,500 with 1925 Model V-63.
• Model year production 35,500 with 1925 Model V-63.
• The president and general manager was Herbert H. Rice.

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May 11, 2000; March 8/03