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Cadillac Series 65

Specs, engines and history

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By , Automotive Technology & EV Contributor

The Cadillac Series 65 was a short-lived mid-priced Cadillac of the 1937 and 1938 model years. It combined the long wheelbase of the Series 70 with a cheaper Fisher body and the 5.7-litre Monobloc V8, and it sat between the Series 60 and the Fleetwood-bodied Series 70 in the price list. Only 3,877 cars were built before Cadillac reorganised its range for 1939.

In short

  • Built for the 1937 and 1938 model years in Detroit; 2,401 and 1,476 cars.
  • 346 cu in (5.7-litre) Monobloc side-valve V8 with 101 kW (135 hp) at 3,400 rpm, three-speed manual gearbox.
  • Four-door sedan in 1937; a better-equipped sedan and a four-door convertible sedan were added in 1938.
  • Replaced by the Series 61 and the Sixty Special for 1939.

Cadillac Series 65 at a glance

Item Details
Maker Cadillac, division of General Motors; assembled in Detroit, Michigan
Designer Harley Earl (GM styling)
Production 1937–1938 model years
Built 3,877 (2,401 in 1937, 1,476 in 1938)
Body GM C-body by Fisher: four-door sedan; four-door convertible sedan in 1938
Layout front engine, rear-wheel drive
Engine 346 cu in (5.7 l) Monobloc V8, 101 kW (135 hp)
Gearbox three-speed synchromesh manual
Successor Cadillac Series 61 and Sixty Special (1939)

The Cadillac catalogue on 1cars lists the Series 65 with the other pre-war Cadillac series, and the history of Cadillac describes the company in the 1930s.

Series 65 production timeline

Year Event
1936 Series 60 introduced as the lower-priced Cadillac with a 322 cu in V8
1937 Series 65 launched between the Series 60 and Series 70; all Monobloc V8s enlarged to 346 cu in
1937 2,401 Series 65 sedans built
1938 new front end shared with the Series 75; column gearshift; convertible sedan added
1938 1,476 Series 65 cars built
1939 Series 65 dropped; Series 61 and Sixty Special take over

Where the Series 65 fitted in the 1937 Cadillac range

In 1937 Cadillac offered six series, from the V8 cars up to the sixteen-cylinder flagship:

Series Engine Position
Series 60 V8 lowest-priced Cadillac, introduced in 1936
Series 65 V8 new for 1937, Fisher body on the long wheelbase
Series 70 V8 Fleetwood body
Series 75 V8 largest V8 series
Series 85 V12 twelve-cylinder series
Series 90 V16 sixteen-cylinder series

Below the Series 60 was the LaSalle, GM's companion brand to Cadillac. The Series 65 therefore offered the size of a Series 70 for less money. German Wikipedia, citing the Standard Catalog of Cadillac, puts its 1937 price about US$400 above the Series 60 sedan and US$500 below the Fleetwood-bodied Series 70 touring sedan.

1937 Cadillac Series 60 convertible coupe
1937 Cadillac Series 60 convertible coupe, the smaller sister model. Photo: Lars-Göran Lindgren Sweden / Wikimedia Commons, CC BY-SA 3.0

Development and production history

The Series 60 of 1936, developed under Cadillac manager Nicholas Dreystadt, had proved that a cheaper Cadillac could sell: it accounted for half of all Cadillacs in its first year. For 1937 Cadillac filled the next gap in the range. Instead of a new body, it took the large GM C-body that Fisher built and put it on the 131 in (3,327 mm) wheelbase of the Series 70, also used by the Buick Roadmaster. The Series 60 used the smaller B-body on a 124 in (3,150 mm) wheelbase, so the Series 65 offered 177 mm (7 in) more between the axles for the same engine and 101 kW (135 hp). To set it against other pre-war cars in the catalogue, use the 1cars comparison tool.

In its first year the Series 65 was a single model, a four-door five-seat sedan with three side windows on each side, listed at US$1,945. Cadillac built 2,401. For 1938 the range grew to a better-equipped sedan and a four-door convertible sedan, priced from US$2,285 to US$2,600, but production fell to 1,476. For 1939 Cadillac reorganised its mid-range around the Series 61 and the Sixty Special, and the Series 65 was not continued.

Design and engineering

The Series 65 had an all-steel body except for wooden main sills. It used Bendix dual-servo brakes and GM's Knee-Action independent front suspension. The quarter windows slid instead of being hinged, the rear corners were rounder than on earlier Cadillacs, and the boot was blended more smoothly into the body. Sidemount spare-wheel covers hinged to the wings were an option.

For 1938 the Series 65 shared its front end with the Series 75: a vertical cellular grille, three sets of horizontal bars on the bonnet sides, an alligator-type bonnet that opened from the front, and headlamps mounted in the space between the wings and the bonnet. The wheelbase grew to 132 in (3,353 mm). Under the skin the 1938 chassis brought a column-mounted gear lever, horns behind the grille, the battery under the right side of the bonnet, a transverse silencer behind the fuel tank, a "Synchro-Flex" flywheel and a hypoid rear axle. The engine lost its oil filter.

1938 Cadillac Series 75 limousine with vertical grille
1938 Cadillac Series 75, whose front end the 1938 Series 65 shared. Photo: Sicnag / Wikimedia Commons, CC BY 2.0

Monobloc V8 engine and drivetrain

All V8 Cadillacs of 1937 used the Monobloc side-valve V8, enlarged that year from 322 to 346 cu in (5.7 litres). In the Series 65 it was the only engine and produced 101 kW (135 hp) at 3,400 rpm. German Wikipedia gives about 99 kW (135 PS); the difference reflects the hp and PS units. A Stromberg AA-25 carburettor (AAV-25 in 1938) with an electric choke fed the engine. Drive went to the rear wheels through a three-speed synchromesh manual gearbox.

Cadillac Series 65 specifications

Parameter Metric Imperial
Engine 5.7 l side-valve V8 346 cu in
Power 101 kW at 3,400 rpm 135 hp
Wheelbase (1937 / 1938) 3,327 / 3,353 mm 131.0 / 132.0 in
Length (1937 / 1938) 5,288 / 5,370 mm 208.2 / 211.4 in
Width (1937 / 1938) 1,890 / 1,971 mm 74.4 / 77.6 in
Height (1937 / 1938) 1,765 / 1,727 mm 69.5 / 68.0 in
Commercial chassis wheelbase 4,064 mm 160.0 in
Gearbox three-speed manual -

Series 65 variants

Variant Years Body / purpose Engine Notes
Series 65 sedan 1937 four-door, five-seat sedan by Fisher 5.7 V8 US$1,945; 2,401 built
Series 65 sedan 1938 four-door sedan, Series 75 front end 5.7 V8 part of 1,476 built in 1938
Series 65 Imperial sedan 1938 better-equipped four-door sedan 5.7 V8 listed by German Wikipedia
Series 65 convertible sedan 1938 four-door convertible 5.7 V8 top of the 1938 price range
Commercial chassis 1937–1938 long chassis for commercial bodies 5.7 V8 160 in wheelbase

The Series 65 today

With fewer than 4,000 cars built in two years, the Series 65 is a rare pre-war Cadillac. Survivors still change hands in Europe and the United States, as sale videos from Bilweb Auctions in Sweden and Gateway Classic Cars in the US show. The car shares its V8 with the other Cadillac series of 1937–1938 and its C-body and wheelbase with the Series 70. When buying, check the wooden sills under the steel body and confirm the series from the chassis and body numbers, because 1938 Series 65 and Series 75 cars look alike from the front. More cars of the period are collected in the classics section.

1938 Cadillac Series 65 S#246 — GatewayClassicCars (YouTube)

FAQ

When was the Cadillac Series 65 produced, and where?

In the 1937 and 1938 model years, in Detroit, Michigan.

How many Cadillac Series 65 were built?

3,877: 2,401 in 1937 and 1,476 in 1938.

What engine does the Cadillac Series 65 have?

The 346 cu in (5.7-litre) Monobloc V8 with 101 kW (135 hp), with a three-speed manual gearbox.

What replaced the Series 65?

For 1939 Cadillac reorganised its mid-range around the Series 61 and the Sixty Special.

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