1934 Cadillacs were completely restyled and mounted on an entirely new chassis, but used the same basic
engines as in 1933.
Bodies
Bodies on the Series 10 and 20 cars were built by Fisher.
Bodies on the V-8 Fleetwood Series were shared with the twelves and sixteens.
Styling emphasized streamlining including concealment of all chassis features except the wheels
Body construction was improved for better insulation against engine heat and reduction of engine, road, and wind noise.
Bumpers were a stylish but ineffective biplane design, mounted against telescoping springs.
The grill was Vee shaped and sloping, set into a painted shell.
Although restricted use of chrome was a feature of the overall ornamentation, a chrome plated radiator shell was available as an option.
Horns and radiator filler cap were concealed under the hood.
Teardrop Guide Multibeam headlights were mounted on streamlined supports attached to the fenders.
Parking lamps were mounted in the headlight supports.
Airfoil shaped front fenders were brought low over the chassis.
The hood sills were high, with the entire fender shape molded into the radiator shell.
A curious horizontal crease broke the nose contour of the fenders.
Hoods extending nearly to the windshield carried shutter type louvers in the side panel.
Windshields were fixed and steeply sloping; 18 degrees flat on Fisher bodies, 25 degrees flat or 29-1/2 degrees Vee on Fleetwood bodies.
Cowl vents opened toward the windshield; one vent on flat windshield bodies, two vents projecting through openings in the hood on Vee windshield bodies.
Bodies were two inches lower than on previous models.
Added passenger space in the front compartment was achieved by moving the hand brake lever to the left of the driver, under the instrument panel.
On twelves and sixteens, the gearshift lever was moved forward to the clutch housing.
Rear fenders were airfoil shaped and carried rear lights which matched the headlights.
The gas tank filler on Fisher bodies was on the left side at the rear of the body; on Fleetwood bodies in the left rear fender.
All bodies featured a beaver tail rear deck which completely covered the chassis.
On Fleetwood bodies, the spare was concealed inside the rear deck, unless optional fender mounts were specified.
Chassis
Significant changes in chassis design resulted in improved riding and handling plus decreased driver fatigue.
The new independent "knee action" front suspension with coil springs and center point steering resulted in greatly reduced unsprung weight.
Front shocks were now an integral part of the suspension; the shock arm being the upper suspension arm.
An inverted steering box, mounted on the outside of the frame, was used on Fleetwood bodied cars.
Hotchkiss drive replaced the torque tube drive.
Rear brakes were operated by pull rods and cables.
A new frame of X design added to chassis strength and allowed for the reduction in overall vehicle height.
A stabilizer bar to control body roll in turns was added at the rear of the chassis.
The brake and clutch pedal assembly was relocated from transmission to frame.
Mufflers on Fleetwood bodied cars were relocated to the outside of the frame.
In Fisher bodies, the battery was under the front seat, on the right side.
In the Fleetwood bodies, the battery was under the right front fender and was removed from underneath.
Engine
Engine changes were few, but horsepower was increased.
All engines used Lynite Aluminum pistons.
Compression ratios were increased.
Intake ducting to the carburetor air cleaner was extended to the radiator casing, providing cold, dense air rather than the hot air in the engine compartment.
The combination of Aluminum pistons, cold intake air, and higher compression with improved fuels resulted in increased horsepower and engine speeds.
Detail changes in the V-8 engine included a change to the Detroit Lubricator Carburetor, use of dual valve springs, discontinuation of the oil filter, and solenoid starter control with starter button on instrument panel.
One V-8 engine change to be appreciated by anyone removing a cylinder head was the change from head studs to cap screws.
The change was actually made so that the heads could be turned before lifting, so as to clear the hood shelf.
Another change, not necessarily appreciated was the elimination of provision for hand cranking.
I. D. DATA
Serial numbers were on top surface of frame side bar, right side, of dash.
Same as engine number.
Starting no.: 3100001.
Ending: 3108318 (with 1935).
Engine numbers were stamped on crankcase near the water inlet on the side.
Starting engine no.; 3100001.
Ending: 3108318 (with 1935).
Series 10 Fisher 128 in. wheelbase
Style Number
Doors
Style
Seating
Price
Weight
34728
2-door
Sport Coupe
2/3
2395
4550
34718
2-door
Convertible Coupe
2/4
2495
4515
34721
4-door
Convertible Sedan
5
2695
4750
34722
2-door
Town Coupe
5
2545
4630
34709
4-door
Sedan
5
2495
4715
34702
4-door
Town Sedan
5
2545
4735
Series 20 Fisher 136 in. wheelbase
Style Number
Doors
Style
Seating
Price
Weight
34678
2-door
Sport Coupe
2/3
2595
4660
34668
2-door
Convertible Coupe
2/4
2695
4625
34671
4-door
Convertible Sedan
5
2895
4860
34659
4-door
Sedan
5
2695
4825
34652
4-door
Town Sedan
5
2745
4815
34662
4-door
Sedan
7
2845
4945
34663
4-door
Imperial Sedan
7
2995
4970
Series Fleetwood (30) 146 in. wheelbase Vee windshield
Some listings show these as 56____ styles
Style Number
Style
Seating
Price
Weight
5702
Roadster
2
5712-C
Collapsible Town Cabriolet
5
5712-LB
Town Cabriolet
5
5495
5540
5712-MB
Town Cabriolet
5
5720
Town Cabriolet
7
5720-C
Collapsible Town Cabriolet
7
5725-B
Town Cabriolet
7
5725-LB
Town Cabriolet
7
5595
5650
5725-MB
Town Cabriolet
7
5730
Imperial Sedan
5
5730-FL
Imperial Cabriolet
5
4145
5500
5730-FM
Imperial Brougham
5
5730-S
Sedan
5P
3745
5465
5733
Imperial Town Sedan
5
5733-S
Town Sedan
5
3795
5415
5735
Convertible Coupe
2P
4045
5115
5757
Transformable
7
5759
Sport Phaeton
5
5775
Imperial Sedan (Limousine )
7
4095
5580
5775-B
Limousine
7
5775-E
Imperial Sedan
7
5775-FL
Imperial Cabriolet
7
4295
5580
5775 FM
Imperial Brougham
7
5775-H4
Imperial Sedan
7
5775-S
Sedan
7
3895
5545
5775-W
Limousine
7
5776
Coupe
2
3895
5150
5780
Convertible Sedan with divider
5
4295
5465
5780-8
Convertible Sedan
5
5780-S
Convertible Sedan
5
5785
Collapsible Coupe
5
4295
5415
5788
Stat. Coupe
5
5789-A
Victoria Coupe
4
5791
Limousine Brougham
7
5495
5580
5791-B
Limousine Brougham
7
5799
Aero. Coupe
5
4295
5430
Series Fleetwood (30) 146 in. wheelbase flat windshield
Style Number
Style
Seating
Price
Weight
6030-B
Imperial Sedan
5
6030-FL
Imperial Cabriolet
5
3695
5500
6030-FM
Imperial Brougham
5
6030-S
Sedan
5
3295
5465
6033-S
Town Sedan
5
3345
5415
6035
Convertible Coupe
2
6075
Imperial Sedan
7
3645
5580
6075-B
Limousine (spec. back)
7
6075-D
Limousine
7
6075-E
Limousine
7
6075-FL
Imperial Cabriolet
7
3845
5580
6075-FM
Imperial Brougham
7
6075-H3
Limousine
7
6075-H4
Limousine
7
6075-O
Imperial Sedan
7
6075-S
Sedan
7
3445
5545
Some confusion exists regarding style numbers on 1934-35 Fleetwood bodies. Following the previous Fleetwood
system, V-8's would be 56___ or 60___ styles would be 57___ or 61___ styles, and V-16's would be 58___ or
60____ styles. This system was followed in promotional literature, in the 1934 Master Parts List, and in early
factory records. However, since the bodies were identical for all these series, Fleetwood stamped all body plates
57___ or 60___. Master Parts Lists after 1934 used only 57____ and 60____ style numbers for 1934-35
Fleetwood bodies. Starting in 1936, V-8 and V-12 style numbers reflected the new 1936 series designations, but
V16's retained the 57___ system. However, 60___ styles were no longer offered.
ENGINE
Ninety degree L-head.
Eight cylinders.
Cast iron block on aluminum crankcase
Bore & stroke: 3-3/8 x 4-15/16 in.
Displacement: 353 cu. in.
Compression Ratio: 6.25:1 std. 5.75:1 opt.
Brake Horsepower 120 @ 3000 rpm
SAE/Taxable Horsepower: 36.45.
Main bearings: Three.
Valve lifters: Mechanical
Carburetor: Detroit Lubricator, Model 51.
CHASSIS
Feature
Series 10
Series 20
Series Fleetwood 30
Wheelbase
128 in.
136 in.
146 in.
Overall length
205-3/4 - 207-1/2 in.
213-1/4 - 215-1/2 in.
227-9/16 in.
Front Tread
59-3/8
59-3/8
59-3/8
Rear Tread
62 in.
62 in.
62 in.
Tires
7.00 x 17
7.00 x 17
7.00 x 17
TECHNICAL
Selective synchro transmission.
Speeds: 3 Forward 1 Reverse
Left hand drive, center control, emergency brake at left-under panel (RHD opt).