The 1940 Cadillac 62 Series arrived at a turning point for Cadillac styling, blending full prewar luxury presence with cleaner, more modern proportions that still define the appeal of these cars today. Owners usually approach one with equal concern for road manners and visual authenticity, because tire choice has a major effect on both. This model uses a 700-16 bias-ply tire on a 16-inch rim. Within that size, the main choices center on blackwall versus wide whitewall presentation, along with classic bias-ply series from brands such as Lester, BFGoodrich, and Firestone. The right selection depends on how closely the car is being restored and how it will actually be driven.
Which Tire Size Is Right for The 1940 Cadillac 62 Series
The 1940 Cadillac 62 Series uses one primary tire size: 700-16. It is a bias-ply fitment on a 16-inch rim, and the same size applies to the covered V8 sub-model. That means the main decision is less about size and more about choosing the right period-style tire within 700-16, including sidewall appearance, tire series, and the type of driving the car will see.
A 700-16 size uses the older numeric bias-ply system, where the 700 indicates an approximate 7.00-inch section width class and the 16 identifies the wheel diameter in inches. On the 1940 Cadillac 62 Series, this is a traditional bias-ply fitment that suits the car's prewar ride and visual character. Available choices in 700-16 include blackwall and wide whitewall styles, along with series such as Lester Classic Bias Ply, Silvertown Classic Bias Ply, and Firestone Classic Bias Ply. It is the size to evaluate when the goal is maintaining correct-era proportions on a 16-inch wheel.
Fitment is straightforward for the covered 1940 Cadillac 62 Series sub-models because the same primary tire size is used throughout. Checking the exact sub-model still matters so the tire choice stays aligned with the car's wheel setup and restoration direction.
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1940 Cadillac 62 Series V8
The 1940 Cadillac 62 Series V8 uses the same 700-16 bias-ply fitment as the model core. Tire selection therefore comes down to choosing the right period-style presentation, such as blackwall or wide whitewall, and confirming the wheel remains a proper 16-inch setup.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 1940 Cadillac 62 Series Tires for Sale
Available 700-16 choices cover several classic bias-ply approaches, including Lester, Avon, BFGoodrich, Firestone, Tornel, and STA. Buyers can compare blackwall and wide whitewall styles, traditional passenger-car series, and some military or truck-pattern variations that share the same 16-inch size.
Owners of a 1940 Cadillac 62 Series usually want clarity on the 700-16 fitment, 16-inch wheel compatibility, period-style sidewall choices, and what to inspect before putting a prewar Cadillac back on the road.
Tire Size & Fitment
What tire size fits a 1940 Cadillac 62 Series?
The 1940 Cadillac 62 Series uses a 700-16 tire size. This is a numeric bias-ply fitment built for a 16-inch rim, and it is the primary size associated with the model covered here.
That makes the next step less about choosing between different sizes and more about choosing the right 700-16 tire style. Owners should confirm the car still has the correct 16-inch wheels, especially if it has been restored long ago or modified, then compare blackwall versus wide whitewall appearance and the type of service the car will see.
What size rim does a 1940 Cadillac 62 Series use?
The 1940 Cadillac 62 Series uses a 16-inch rim with its 700-16 tire fitment. Product options in this size commonly pair with rim widths in the 4.50 to 5.50 inch range, which is useful when evaluating replacement tires.
Wheel diameter should be verified before any tire purchase, because a car that has changed hands over the decades may no longer have its original wheel setup. Measuring the rim and checking width can prevent mismatches, especially on prewar cars where wheel changes, older restorations, or spare-wheel substitutions sometimes complicate what appears to be a simple 700-16 fitment.
Does the 1940 Cadillac 62 Series V8 use the same tire size?
Yes. The 1940 Cadillac 62 Series V8 uses the same 700-16 bias-ply tire size as the model core. That keeps fitment simple across the covered configuration and puts the focus on selecting the right tire style within that size.
Even with a shared size, owners should still look at the actual wheel on the car before ordering tires. A prewar Cadillac may have had wheels swapped during earlier service life, and appearance goals vary as well, so the real decision is usually between blackwall and wide whitewall presentation rather than between multiple primary tire sizes.
Choosing the Right Tire
What should I consider when choosing a 700-16 tire for a 1940 Cadillac 62 Series?
Start with the correct 700-16 size and a true bias-ply construction, since that is the primary fitment for the 1940 Cadillac 62 Series. From there, compare sidewall appearance, tire series, rim-width suitability, load figures where stated, and whether the tire is a passenger-car design or a military or truck-style pattern.
The right choice depends on how the Cadillac will be used and presented. A wide whitewall usually suits a restoration-oriented luxury look, while a blackwall creates a more restrained presentation. Military and truck-pattern 700-16 tires share the size, but tread style and overall character should be considered carefully before choosing one for a passenger Cadillac.
What sidewall styles are available for 1940 Cadillac 62 Series tires?
The available 700-16 tires for a 1940 Cadillac 62 Series include both blackwall and wide whitewall sidewall styles. Those two treatments create very different visual results even though they share the same basic size and bias-ply construction.
Wide whitewalls usually appeal to owners pursuing a stronger prewar luxury look, while blackwalls tend to suit a simpler or more understated presentation. Since sidewall style changes the appearance of the whole car, it helps to evaluate the wheel covers, paint color, trim level, and overall restoration direction before settling on one 700-16 option.
What brands offer tires for the 1940 Cadillac 62 Series?
Tires in the 1940 Cadillac 62 Series 700-16 size are available from Lester, Avon, BFGoodrich, Firestone, Tornel, and STA. Those options include classic passenger-car bias-ply lines as well as some military or truck-oriented 700-16 offerings.
Brand choice should be weighed alongside sidewall style, tire series, and the intended character of the car rather than treated as a standalone decision. A Cadillac being restored for traditional road use may point toward a classic passenger-car bias-ply, while a utility-pattern 700-16 should be evaluated more closely for appearance and tread style before it is placed on a luxury prewar car.
Restoration & Appearance
Which tire should I choose for a period-style 1940 Cadillac 62 Series?
A 700-16 bias-ply tire is the right starting point for a period-style 1940 Cadillac 62 Series because it preserves the original fitment format and overall visual character. Within that size, the most restoration-oriented decisions usually involve choosing between blackwall and wide whitewall versions of classic passenger-car bias-ply tires.
The best visual match depends on how the car is being finished rather than on size alone. Owners concerned with exact historical authenticity should compare period photos, marque references, and vehicle-specific documentation before selecting a sidewall treatment, since a tire can look convincingly era-appropriate without automatically being the exact presentation the car wore when new.
Does correct tire fitment matter for a 1940 Cadillac 62 Series restoration?
Yes, correct tire fitment matters a great deal on a 1940 Cadillac 62 Series restoration. The 700-16 size and bias-ply construction influence stance, sidewall shape, wheel-fill, and the overall way the car presents, so changing size or style can alter the appearance more than many owners expect.
Proper fitment also affects how the restoration feels on the road and how naturally the car sits within its wheel openings. Even when staying with 700-16, details such as sidewall style, tread character, and wheel width should be checked carefully so the finished Cadillac reflects the owner’s restoration goals instead of looking mismatched or over-modernized.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1940 Cadillac 62 Series?
Yes. Modifications can affect tire fitment on a 1940 Cadillac 62 Series even when the intended replacement remains a 700-16. Changes to wheel diameter, wheel width, suspension height, brake components, or body clearances can all alter how a tire sits and moves within the car.
A prewar Cadillac may have accumulated decades of repairs or upgrades, so the wheel and chassis should be inspected before assuming the standard fitment still applies unchanged. Clearance at full steering lock, wheel width, and the condition of springs and steering parts are all worth checking before putting the car back into regular road use.
What should I inspect before driving a 1940 Cadillac 62 Series on new tires?
Before driving a 1940 Cadillac 62 Series on new tires, inspect the wheels for correct diameter and sound condition, then check valve stems, mounting surfaces, and overall tire inflation. It also helps to look over steering and suspension components so the new 700-16 tires are not being asked to compensate for worn chassis parts.
A careful walkaround after installation is just as important. Look for fender or steering interference, confirm even seating on the rim, and recheck pressure after the first short drive. On a collector Cadillac that may sit for long periods, regular visual inspections for cuts, bulges, cracking, and air loss remain important even when the tires are relatively new.
How should 700-16 tires on a collector 1940 Cadillac 62 Series be maintained?
700-16 tires on a collector 1940 Cadillac 62 Series should be kept properly inflated, inspected regularly, and protected from long periods of harsh storage conditions. Because many prewar cars are driven infrequently, tire age and condition often matter as much as tread depth.
Storage away from prolonged sunlight, heat, moisture, and ozone sources helps preserve sidewalls and overall tire condition. It is also wise to watch for flat spotting after long parking periods and to check for cracking, air loss, or unusual wear before every outing, especially when the Cadillac has not been driven for weeks or months at a time.