1920–1921 Cadillac Type 59 and Type 61: 132-Inch-Wheelbase Chassis

Cadillac sold the Type 59 for the 1920 model year and followed it with the closely related Type 61 for 1921, both using a 314.5-cu-in, 90-degree L-head V8 and a three-speed manual transmission. These cars belonged to the line that began with Cadillac's Type 51 V8 in 1915, while the Type 55 and Type 57 were their shorter-wheelbase predecessors rather than alternative names for the 1920 model.

Best known for carrying Cadillac's pioneering production V8 into the postwar luxury market, the Type 59 and Type 61 combined the established side-valve engine with a 132-inch chassis suitable for open touring bodies, formal sedans, coupes, and chauffeur-driven coachwork.

Collectors care about this pair for reasons extending well beyond age. A correct car preserves the engineering vocabulary Cadillac established before the First World War: a compact V8, electric starting and lighting, left-hand steering, a separate frame, mechanical rear-wheel brakes, and coachwork built when open and enclosed bodies still represented substantially different ownership experiences. The Type 59 is also frequently misidentified in advertisements as a Type 55 or Type 57, making careful attention to chassis dimensions, serial evidence, body construction, and period documentation essential.

Quick Facts

The essential distinction is chronological. Type 59 identifies the 1920 model, while Type 61 identifies the 1921 development; Type 55 and Type 57 belong to earlier years in the same first-generation Cadillac V8 lineage.

The body fitted to a surviving chassis has a major effect on dimensions, weight, appearance, and value. Cadillac catalogues changed their body offerings from one model year to the next, and period rebodies complicate any attempt to reduce the Type 59 or Type 61 to a single curb-weight or overall-length figure.

Why the Type 59 and Type 61 Matter

Cadillac had placed a V8 into series production for 1915, years before an eight-cylinder engine became a familiar American luxury-car solution. By 1920 the company was no longer proving that the layout could work. It was refining a known design for wealthy private owners, hotels, livery operators, and households that might specify either owner-driven open coachwork or a closed body with space for a chauffeur.

The 132-inch chassis mattered because it provided room for increasingly substantial coachwork without abandoning the relatively compact V8 architecture. Packard was selling the Twin Six, Pierce-Arrow remained associated with large six-cylinder cars, Peerless offered a V8, and Henry Leland's Lincoln arrived with another American V8 in 1920. Cadillac therefore faced competitors whose cylinder count, finish, silence, and coachbuilding possibilities were central to the sales argument.

The Type 59 and Type 61 also document a transitional moment in body design. Their upright radiators, separate fenders, running boards, vertical windscreens, and tall passenger compartments still look Edwardian in outline, yet electric equipment, left-hand controls, enclosed bodies, and the flexible V8 point toward the American luxury car of the 1920s.

Historical Context and Development

From the Type 51 to the postwar chassis

Cadillac's Type 51 introduced the company's 90-degree V8 for the 1915 model year. The succeeding Type 53, Type 55, and Type 57 retained the broad architecture while Cadillac revised controls, body catalogues, and chassis details. The Type 53 is particularly notable for establishing the left-hand control arrangement of clutch, brake, accelerator, gear lever, and hand brake that became conventional in American cars.

The Type 55 was a 1917 model, and the Type 57 covered the 1918 and 1919 period. Type 57 Cadillacs also acquired a wartime association through military and staff-car service, but neither Type 55 nor Type 57 is a correct factory designation for a 1920 Type 59 chassis. The Type 59's 132-inch wheelbase, compared with the 125-inch chassis generally associated with the preceding Types 55 and 57, is one of the most useful physical distinctions.

Cadillac after the First World War

Cadillac had been part of General Motors since 1909 and entered the 1920s with a reputation built on interchangeable manufacture, electric starting, and the V8. Its engineering priorities emphasized reliable starting, smooth low-speed operation, manageable controls, and the ability to move heavy closed coachwork without constant gear changing.

No homologation rule or factory racing program dictated the Type 59. Its engineering came from luxury-car requirements and production experience rather than competition. Cadillac's advertising and technical literature concentrated on smoothness, convenience, precision manufacture, and the reduced shifting made possible by eight-cylinder torque.

Design and coachwork

A Type 59 or Type 61 presents a long, nearly horizontal hood ahead of an upright passenger compartment. The visual mass changes dramatically with body style: open touring cars appear lean and functional, while sedans and limousines place a large glazed body over the rear half of the chassis. Running boards connect separate front and rear fenders, and the radiator shell, lamps, windshield hardware, door proportions, and wheel treatment supply many of the year-specific visual clues.

Closed bodies from this period relied heavily on timber framing beneath metal outer panels. Interior fittings could include broad cloth upholstery in formal bodies, leather in open cars, wood trim, floor coverings, curtains, and speaking equipment in chauffeur-driven configurations. Surviving cars have often been retrimmed more than once, so attractive upholstery is not by itself evidence of factory correctness.

Engine and Drivetrain

The 314.5-cu-in L-head V8

The engine used two banks of four cylinders set at 90 degrees, with the valves located in the block rather than in overhead cylinder heads. Its 3.125-inch bore and 5.125-inch stroke produced 314.5 cubic inches, or approximately 5.15 liters. The long stroke and modest operating speed suited heavy cars that needed useful torque at road speeds rather than high-rpm power.

Period and later reference works commonly publish an output of approximately 70 bhp, while the engine's 31.25 hp taxable rating came from the N.A.C.C. bore-based formula and was not a measurement of delivered brake horsepower. Those two numbers should never be treated as contradictory specifications. Cadillac did not publish modern torque curves or redline figures for these cars, and assigning either from guesswork would be misleading.

The side-valve arrangement simplified the cylinder-head castings and kept the valvetrain compact. Detachable heads aided decarbonizing and valve work, both routine concerns in an era of variable fuel quality and lubricants that produced substantial deposits. The crankcase and paired cylinder-bank construction require a rebuilder who understands early V8 alignment, bearing work, oil clearances, and the consequences of previous machining.

Induction, ignition, lubrication, and cooling

A single carburetor supplied the engine through a period induction system calibrated for tractability. Exact carburetor identification must be checked against the model year, engine number, parts literature, and surviving fittings because carburetors and manifolds were commonly replaced during decades of use. Modern replacement units may make a car run, but they are visually obvious and can reduce collector appeal.

Cadillac's Delco electrical equipment was a crucial part of the ownership proposition. Battery ignition, electric starting, and electric lighting removed much of the ritual associated with hand-cranked cars, although a restored system still depends on correct cable size, sound grounds, an appropriate battery, and properly rebuilt starter and generator components.

The engine used pressure-fed lubrication in an early-automobile context, but it should not be judged by modern oil-pressure expectations. Cooling depends on a clean radiator core, unobstructed block passages, a functioning pump where fitted in the original system, correct hoses, and properly set controls. Sediment around the low portions of the water jackets is a familiar discovery during a thorough rebuild.

Clutch, gearbox, and rear axle

A manually operated clutch fed a three-speed selective sliding-gear transmission. There was no synchromesh, so quiet changes depend on matching engine and road speed, pausing through neutral, and using double-declutching when conditions require it. Gear noise or resistance can result from technique, but persistent jumping out of gear points toward worn engagement surfaces, bearings, shafts, or selector components.

Drive passed through a propeller shaft to a live rear axle. The axle, universal joints, torque-reaction arrangements, hubs, and wheel bearings must be inspected as a complete system because wear in one component often loads another. Rear-axle ratios and wheel equipment can differ by body and period specification, so a restorer should verify the installed assembly rather than relying on a generalized specification.

The core dimensions below are among the consistently documented specifications. Compression ratio, torque, and governed engine speed are omitted because dependable model-specific figures are not consistently presented in surviving references.

The specifications describe an engine intended to pull from low speed, not an engine that should be accelerated aggressively in each ratio. Correct carburetion and ignition advance matter as much as nominal horsepower, particularly when a heavy sedan body is fitted.

Chassis, Suspension, Steering, and Brakes

Cadillac mounted the drivetrain and body on a separate steel frame. Beam axles and leaf springs were normal practice, providing durability and wheel travel on roads that could be deeply rutted or only loosely surfaced. The long wheelbase reduced pitching but also placed considerable leverage on the frame and body mountings.

Steering used a mechanical steering box without assistance. A sound car should steer predictably once moving, but substantial effort is expected at parking speed, especially with an enclosed body. Excessive free play is not an authentic characteristic to accept without investigation; worn kingpins, tie-rod joints, wheel bearings, steering gears, and spring shackles can compound one another.

Service braking acted mechanically at the rear wheels, with a separate hand-operated system forming part of the control layout. There were no hydraulic circuits and no front-wheel service brakes. Correctly adjusted rods, equalized linkage, concentric drums, suitable linings, and dry hubs are therefore essential, but even a well-restored example demands much greater anticipation than a later four-wheel-brake Cadillac.

The chassis table focuses on features that affect identification, restoration, and road use. Wheel and tire details should be confirmed against the individual body style and factory literature because many survivors acquired replacement rims or non-original wheel assemblies.

Frame alignment has an outsized effect on these cars. A sagging chassis can distort doors, windshield alignment, running boards, and body panels, while deteriorated timber can produce similar symptoms even when the frame itself remains straight.

Driving Experience and Road Manners

A properly sorted Type 59 gathers speed through torque rather than revs. The long-stroke V8 should pull cleanly once its carburetor, ignition timing, and mixture controls are set, with less vibration than many large four-cylinder contemporaries. A heavy closed car naturally asks more of the engine than a roadster or touring body.

The gearbox rewards an unhurried hand. First gear starts the car and deals with steep gradients, second carries much of the useful acceleration, and top becomes the normal road ratio. Forcing a shift before the shaft speeds have matched produces the familiar gear clash of a non-synchromesh transmission and can damage scarce components.

At speed, the long wheelbase gives the Cadillac a deliberate gait over broad undulations. The rigid axles and tall tires allow substantial wheel movement, but abrupt steering inputs reveal the weight and height of formal coachwork. Worn dampers, springs, shackles, or body mounts make the car feel markedly less controlled than Cadillac intended.

The brake pedal requires an early decision and firm, progressive pressure. Rear-only braking reduces stopping authority and can lock the rear wheels before the front tires contribute much useful deceleration. Responsible touring therefore depends on generous following distances, moderate speed, and an escape route in modern traffic.

Identification and Originality

Serial numbers rather than a modern VIN

A Type 59 or Type 61 does not possess a standardized 17-character VIN. Identification depends on the manufacturer's serial markings, engine number, chassis features, body tags where present, and documentary evidence. Buyers should record every stamping exactly as found, including prefixes, punctuation, and the style of the characters, then compare it with recognized Cadillac club and archival references.

No single number should be evaluated in isolation. An engine from another early Cadillac V8 may fit or may have been installed decades ago, while a chassis can carry a later body, an altered body, or coachwork transferred during restoration. Unsupported claims that a particular engine and frame were born together deserve documentary verification.

Body numbers and coachwork

Closed bodies may retain maker's plates, body numbers, or evidence of Fisher construction, but tags can be missing, replaced, or transplanted. Door shape, hinge layout, cowl structure, windshield posts, seat placement, sill construction, and the relationship between the body and frame brackets often reveal more than a freshly made plate.

The timber body skeleton is particularly important. New wood is acceptable in a restored car when it faithfully reproduces the original structure, but extensive rebuilding should be photographed before the upholstery and outer panels conceal the work. A body with poor door gaps may have rotten timber, incorrect mounting pads, a bent frame, or all three.

Correct equipment and finishes

Carburetors, generators, starters, distributors, lamps, horns, instruments, wheel rims, radiator caps, and controls were service items and are frequently incorrect. Reproduction lenses, wiring, running-board material, tires, and trim can make a car usable, but high-level restorations distinguish between a functional substitute and a part that matches the model year in casting, finish, and configuration.

Cadillac did not use the modern option-code labels and adhesive paint-code stickers familiar from postwar cars. Finish research should begin with original sales literature, period color information, hidden paint layers, upholstery remnants, body records, and photographs. Bright modern metallic colors, excessive chrome, glossy engine ancillaries, and synthetic interior patterns can look anachronistic even when the workmanship is excellent.

Matching numbers must be used carefully in this era. A documented original engine is valuable, but the modern expectation that every major casting carries a coordinated sequence is not necessarily applicable. Date evidence, component type, machining details, provenance, and long-term ownership records often provide a more reliable originality picture.

Type 55, Type 57, Type 59, and Type 61 Breakdown

The family table separates the factory model designations that are often combined in catalogues and online listings. Body catalogues and minor equipment changed within this sequence, so the table avoids assigning every surviving body style to every year.

There was no Type 59 homologation special or factory racing derivative. The most consequential variant distinction is the body itself. An open touring car, compact coupe, owner-driven sedan, and division-window limousine can share basic mechanical architecture while differing sharply in weight, visibility, body construction, restoration cost, and collector demand.

Performance and Dimensional Specifications

Standardized acceleration testing was not yet common, and surviving period figures are strongly affected by body weight, axle ratio, road surface, weather, and test method. It is more responsible to omit unsupported 0-60 mph and quarter-mile claims than to assign modern-style performance numbers to the entire range.

Overall length, curb weight, and maximum speed cannot be represented by one honest figure for every Type 59 or Type 61. Coachwork ranged from relatively light open bodies to large enclosed limousines, and period documentation does not provide a single standardized road-test result applicable to all of them.

Compared With Related Cadillac Models

Type 57 versus Type 59

The Type 57 and Type 59 share the 314.5-cu-in V8 architecture, which explains why engines and mechanical parts can be confused or interchanged. The principal chassis distinction is the move from the Type 57's 125-inch wheelbase to the Type 59's 132 inches. Body mounts, sheet metal, running boards, control details, and catalogued body dimensions must therefore be checked rather than assumed interchangeable.

Type 59 versus Type 61

The Type 61 is the direct 1921 successor to the 1920 Type 59 and retains the 132-inch scale and familiar V8. The differences are evolutionary, making serial evidence and model-year equipment more dependable identifiers than broad styling impressions. A seller's use of both designations for one car should prompt inspection, not an automatic assumption that the terms are synonyms.

Cadillac versus Packard Twin Six and early Lincoln

Packard's Twin Six used twelve cylinders and carried a powerful prestige argument, while the first Lincoln also employed a V8. Cadillac countered with an engine it had already produced and refined through civilian and wartime service. For a modern collector, Cadillac's appeal lies partly in that continuity: the Type 59 was not an experimental first attempt, but a developed version of a design in production since 1914 for the 1915 model year.

Later Cadillac V8s

The Type 59 should not be confused with Cadillac's later V-63, Series 314, or Series 341 cars. Later models brought substantial changes in chassis design, braking, engine development, styling, and model nomenclature. Mechanical resemblance does not guarantee parts interchangeability, and a later replacement component can be period-looking without being correct.

Ownership and Restoration Notes

Engine rebuilding

An engine that turns is not necessarily serviceable. Before regular operation, a specialist should assess bearing clearances, crankshaft condition, cylinder wear, valve seats and guides, oil passages, water-jacket sediment, timing components, and evidence of frost cracking or old repairs. Early castings are scarce, and careless machining can destroy material that cannot readily be replaced.

Compression should be considered alongside leakage, oil pressure behavior, coolant condition, and hot running. Uneven compression may arise from valves and carbon rather than cylinder wear alone. Fuel-system restoration should include the tank, lines, shutoffs, carburetor, and any vacuum-feed equipment present on the individual car.

Gearbox, axle, and controls

Gear teeth, shafts, bearings, clutch components, and selector parts are not normal shelf items. A gearbox that jumps out of gear or an axle that howls under load may require specialist pattern work, used parts, or the manufacture of new components. Brake rods, pivots, cross-shafts, and equalizers deserve the same attention as the drums and linings.

Frame, body wood, and corrosion

Rust commonly attacks areas where mud and moisture collect, including frame channels, crossmembers, splash aprons, fender edges, running-board supports, floors, and body-mount locations. On closed cars, water entering around the roof, windshield, doors, or rear body can remain trapped beside structural wood. Swollen or decayed timber then shifts the metal skin and door openings.

Reconstructing a formal body can exceed the mechanical work in hours and specialist skill. Patterns must account for door fit, glass channels, roof structure, upholstery attachment, and the way the body settles on its mounting pads. Buying a complete but tired car is usually preferable to beginning with a chassis and an incomplete pile of unidentified body hardware.

Parts and documentation

Routine materials such as wire, bearings, gaskets, brake lining, hoses, and fasteners can often be adapted or reproduced. Model-specific castings, instruments, carburetor components, lamps, wheel hardware, trim, and body fittings are much harder to locate. Cadillac and LaSalle club networks, early-car specialists, swap meets, archives, and long-established collections remain central to a correct restoration.

Useful documentation includes period photographs, registration records, old titles, correspondence, invoices, restoration images, body tags, engine-number rubbings, and ownership history. A decades-old restoration with complete records may be more intelligible than a cosmetically fresh car assembled from several unidentified donors.

Buyer and Inspection Points

A Type 59 or Type 61 inspection should begin with identity and structure before progressing to paint or upholstery. The following checks target the expensive failures and authenticity problems most likely to change the character of the purchase.

A road test should be conducted with someone familiar with non-synchromesh gearboxes and mechanical rear brakes. Judging the car by modern control effort is unhelpful, but steering wander, brake pull, overheating, persistent gear disengagement, and heavy mechanical knocks are defects rather than period charm.

Collector and Market Relevance

Survival is limited by age, wartime scrappage, the cost of storing large closed bodies, and the amount of timber and specialized hardware involved in restoration. Exact production totals for each body style are not consistently documented in readily available references, and survival counts are lower still. Rarity alone does not determine desirability, since completeness, mechanical condition, body authenticity, and provenance can outweigh body style.

Open touring cars appeal to owners who participate in early-car tours and want visibility and easier access to body structure. Roadsters carry sporting visual appeal, while original formal sedans and limousines preserve coachbuilding material that has often disappeared elsewhere. A sound, documented closed car can be historically valuable even when the broader market favors open coachwork.

Collectors generally reward correct engines, recognizable period electrical and fuel equipment, intact body fittings, restrained finishes, and evidence that the car has not been assembled from unrelated model years. A quality older restoration may be preferable to a bright recent one if the latter hides modern upholstery, incorrect chrome, altered wheels, or compromised body wood.

The market is specialist rather than fashion-driven. Auction interest tends to follow provenance, body style, restoration quality, and usability, but these cars require buyers who understand pre-four-wheel-brake road manners. Their strongest historical argument is Cadillac's sustained V8 production before many competitors had committed to the layout.

Cultural and Motoring Relevance

The Type 59 and Type 61 were not racing cars, and attaching a competition narrative to them would distort their purpose. Their contribution was visible on American roads, in chauffeur service, and in the spread of the V8 as a credible luxury-car engine. Cadillac demonstrated that eight cylinders could be packaged in a production chassis without resorting to the immense hood length associated with some large-displacement luxury cars.

Club culture now supplies much of the practical infrastructure around the model. National and regional Cadillac organizations, Horseless Carriage groups, early-car tours, concours events, and specialist archives preserve technical knowledge that factory dealers ceased supporting generations ago. These cars are most convincing in motion, where the low-speed flexibility, deliberate shift timing, and upright driving position explain Cadillac's engineering choices better than a static display.

Appearances of generic early Cadillacs in period films and later historical productions do not establish a documented screen history for every Type 59. Positive identification requires frame-by-frame confirmation of body, radiator, wheelbase, lighting, and year-specific equipment rather than a caption that merely says Cadillac.

Frequently Asked Questions

What engine is in the 1920 Cadillac Type 59?

The Type 59 uses Cadillac's naturally aspirated 314.5-cu-in, approximately 5.15-liter, 90-degree L-head V8. Its bore and stroke are 3.125 by 5.125 inches, and period references commonly list output at about 70 bhp.

Is the Cadillac Type 59 the same as the Type 55 or Type 57?

No. The Type 55 is associated with 1917, the Type 57 with 1918–1919, the Type 59 with 1920, and the Type 61 with 1921. They belong to the same early Cadillac V8 lineage, but their model designations, chassis details, body catalogues, and wheelbases should not be treated as interchangeable.

How can a Type 59 be distinguished from a Type 57?

The Type 59 uses a 132-inch wheelbase, while the Type 57 is generally documented with a 125-inch wheelbase. Serial and engine markings, body structure, brackets, controls, and period records should support the dimensional evidence before an identification is accepted.

Does a Type 59 have a modern VIN?

No. It predates standardized VIN systems by decades. Identification relies on original serial markings, engine numbers, chassis characteristics, body tags where present, and documentary history, with decoding checked against recognized Cadillac references.

What are the major mechanical problems on a Type 59 or Type 61?

Important concerns include cracked or sediment-filled engine castings, worn bearings and valve gear, cooling-system restriction, incorrect carburetion, deteriorated wiring, clutch and gearbox wear, axle noise, steering play, and poorly equalized rear-wheel brakes. The difficulty lies less in the basic design than in locating or manufacturing model-specific parts.

Are restoration parts available?

Service materials and some reproduction items are obtainable through specialists, but engines, transmissions, instruments, lamps, trim, body hardware, and correct wheel components are scarce. Completeness should be treated as a primary buying criterion because missing small parts can require pattern making and custom fabrication.

What most affects the value of an early Cadillac Type 59?

Body style, authenticity, structural condition, completeness, engine correctness, provenance, and restoration quality matter most. A documented car with sound body wood and correct mechanical equipment is generally more compelling than one with expensive paint but uncertain identity or extensive modern substitutions.

Collector Takeaway

The Type 59 and Type 61 show Cadillac's early V8 after the novelty had worn off and the engineering had become a production discipline. Their 314.5-cu-in side-valve engine, electric equipment, conventionalized controls, and 132-inch chassis define what Cadillac expected a serious postwar luxury car to do: start without drama, pull substantial coachwork, and travel without incessant shifting.

The best example is not necessarily the shiniest or the rarest body style. It is the car whose identity survives scrutiny, whose body wood and frame remain structurally honest, and whose restoration respects the materials and operating character of 1920 or 1921. Preserve those qualities, and the Type 59 or Type 61 becomes direct evidence of how Cadillac turned the V8 from an engineering headline into the foundation of its luxury-car business.