The 1949 Ford Custom arrived at a turning point for Ford styling, bringing postwar buyers a lower, smoother full-size design that still feels distinctly late-1940s in stance and presentation. Today, that character matters just as much as roadworthiness, because tire choice has a visible effect on how the car sits and how authentic it feels from curbside. The 1949 Ford Custom uses a 670-15 bias-ply tire on a 15-inch rim, shared across both 6-cylinder and 8-cylinder versions. Within that size, choices include blackwall, narrow whitewall, and wide whitewall designs, along with several period-style tire series and radial-equivalent alternatives. The right selection depends on whether the priority is restoration appearance, traditional bias-ply construction, or a carefully checked radial option.
Which Tire Size Is Right for The 1949 Ford Custom
The 1949 Ford Custom uses one primary tire size: 670-15. It is a bias-ply fitment on a 15-inch rim, and that same size applies across the covered 6-cylinder and 8-cylinder sub-models. For most owners, the decision is less about choosing between multiple primary sizes and more about selecting the right sidewall style, tire series, and whether to stay with traditional bias-ply construction or evaluate a radial equivalent.
A 670-15 is a vintage numeric bias-ply size in which the 670 refers to an approximate 6.70-inch nominal section width and the 15 identifies the wheel diameter in inches. On the 1949 Ford Custom, this is the primary bias-ply fitment and it preserves the traditional look and stance associated with a late-1940s full-size Ford. Available choices include blackwall, narrow whitewall, and wide whitewall versions from brands such as Firestone, US Royal, BFGoodrich, Goodyear, Universal Vintage Tire, Excelsior, Avon, Coker Classic, and STA across several classic tire series. It is the size to use when the goal is to keep the car centered on its original-style fitment before narrowing the choice by appearance and wheel compatibility.
Tire fitment is straightforward across the covered 1949 Ford Custom sub-models because both use the same primary 670-15 bias-ply size. Checking the exact sub-model still helps confirm that the car remains on the expected wheel and tire setup before comparing sidewall styles or considering a radial equivalent.
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1949 Ford Custom 6 Cyl.
The 1949 Ford Custom 6 Cyl. uses the same 670-15 bias-ply tire size as the other covered Custom configuration. That keeps the selection process focused on appearance, tire series, and wheel-width compatibility rather than on sorting through different primary fitments.
The 1949 Ford Custom 8 Cyl. also uses the 670-15 bias-ply size on a 15-inch rim. For this sub-model, the main choice is whether to stay with a traditional bias-ply presentation or compare that fitment with carefully checked radial-equivalent options.
Bias-Ply to Radial Tire Conversion for the 1949 Ford Custom
For the original 670-15 size, four radial-equivalent options are available. They include 195R15 as an 80-series metric radial, P205/75R15 as a P-metric 75-series radial, P215/70R15 as a lower-profile P-metric 70-series radial, and 670R15 as a bias-look radial alternative. Together, these choices span traditional metric, later P-metric, and bias-look presentations. A recommended rim-width range of 5-7 inches applies to these equivalents, and any conversion should still be checked against wheel dimensions, overall tire fit, and vehicle clearance.
Modern Radial Equivalents
195R15
Equivalent 80-series Metric Radial (670-15)
P205/75R15
Equivalent P-metric 75-series Radial (670-15)
P215/70R15
Equivalent P-metric 70-series Radial (670-15)
670R15
Bias-look Radial Equivalent (670-15)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (5-7 in) and load needs match your vehicle specifications.
Check fender clearance, steering clearance, and stance before installation.
Consider suspension condition and intended road use when choosing equivalents.
Important Fitment Notes
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 1949 Ford Custom Tires for Sale
Available 670-15 choices cover a wide spread of period-style options from Firestone, US Royal, BFGoodrich, Goodyear, Universal Vintage Tire, Excelsior, Coker Classic, Avon, and STA. Buyers can compare blackwall, narrow whitewall, and wide whitewall treatments across several classic bias-ply series and differing rim-width specifications.
Common questions for the 1949 Ford Custom usually center on the 670-15 tire size, 15-inch rim fitment, bias-ply versus radial-equivalent choices, sidewall appearance, and the vehicle checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 1949 Ford Custom?
The 1949 Ford Custom uses a 670-15 tire size. That is a vintage numeric bias-ply size, and it applies to both the 1949 Ford Custom 6 Cyl. and 1949 Ford Custom 8 Cyl. covered here.
That single primary size simplifies fitment, but the final choice still depends on the car’s actual wheel setup and the type of tire presentation you want. Many owners narrow the selection by sidewall style, such as blackwall, narrow whitewall, or wide whitewall, while others compare the original-style bias-ply size with radial equivalents after confirming wheel width and clearance.
What size rim does a 1949 Ford Custom use?
The primary 670-15 fitment for a 1949 Ford Custom uses a 15-inch rim diameter. That 15-inch wheel diameter applies across the covered Custom 6-cylinder and 8-cylinder configurations tied to this tire size.
Rim diameter is only one part of fitment, so it is worth checking the actual wheel on the car before choosing a tire. Some 670-15 products are matched to narrower factory-style wheel widths, while radial-equivalent options call for their own width range, so confirming both diameter and width helps avoid clearance or compatibility problems.
Do all 1949 Ford Custom sub-models use the same tire size?
Yes. The covered 1949 Ford Custom sub-models share the same 670-15 bias-ply tire size. Both the 6-cylinder and 8-cylinder versions use that same primary fitment on a 15-inch rim.
That shared size means the main buying decision is not sub-model variation but how the car is equipped today and what look you want to achieve. A mostly stock restoration may point toward traditional bias-ply styling, while a car with updated driving expectations may lead you to review radial equivalents after checking wheel width, suspension condition, and available clearance.
Bias-Ply & Radial Options
Is 670-15 a bias-ply or radial tire for the 1949 Ford Custom?
For the 1949 Ford Custom, 670-15 is the primary bias-ply tire size. It is the original-style construction format used for this fitment, and the available products in that primary size are bias-ply tires on a 15-inch rim.
That matters because construction affects both appearance and driving feel. Owners trying to preserve a traditional late-1940s presentation often stay with bias-ply, while owners considering a more modern construction usually compare one of the available radial equivalents instead of treating the original 670-15 code itself as a radial size.
What radial tire sizes are equivalent to 670-15?
Radial equivalents for 670-15 include 195R15, P205/75R15, P215/70R15, and 670R15. Those choices cover an 80-series metric radial, a P-metric 75-series radial, a P-metric 70-series radial, and a bias-look radial alternative.
Each option represents a different sizing convention and visual approach, so the choice is not only about converting from bias-ply to radial. A 670R15 keeps a more traditional look, while the metric and P-metric sizes reflect more modern radial formats. Wheel width, overall fit on the car, and clearance at steering and suspension points should be checked before making the change.
What should I check before converting my 1949 Ford Custom from bias-ply to radial tires?
Start by confirming the wheel diameter and wheel width on the car, then compare the selected radial equivalent against the vehicle’s available space. For the 1949 Ford Custom, radial alternatives to 670-15 include 195R15, P205/75R15, P215/70R15, and 670R15, with a recommended rim-width range of 5-7 inches for the equivalent options.
The next step is to inspect the full setup rather than assuming every 15-inch wheel will behave the same way. Clearance at the fenders, steering components, and suspension matters, especially on older cars that may have replacement wheels or ride-height changes. A radial conversion should also be matched to the car’s intended use and overall condition.
Choosing the Right Tire
What should I consider when choosing a 670-15 tire for a 1949 Ford Custom?
Begin with the correct primary size, which is 670-15, and decide whether the priority is traditional bias-ply construction, period-style appearance, or a radial-equivalent alternative. Within the bias-ply options, the 1949 Ford Custom has a broad range of sidewall treatments and classic tire series to choose from.
After that, compare the tire against the wheel actually on the car. Some products are suited to narrower vintage wheel widths, while others differ slightly in width recommendations, load capacity, and overall presentation. Matching the tire to your restoration goals, driving habits, and wheel dimensions usually narrows the choice much faster than brand name alone.
What sidewall styles are available for 1949 Ford Custom tires?
Tires for the 1949 Ford Custom are available in blackwall, narrow whitewall, and wide whitewall styles within the 670-15 size. Those sidewall choices appear across several bias-ply offerings and give the car noticeably different visual character even when the size remains the same.
Blackwalls tend to create a simpler, more understated presentation, while whitewall variations add a stronger period look that many postwar restorations favor. The key is to choose a sidewall style that suits the car’s finish and intended presentation without assuming that any single stripe width was universal. Once the appearance is settled, wheel compatibility and construction choice still need confirmation.
What brands offer tires for the 1949 Ford Custom?
The 670-15 size for a 1949 Ford Custom is available from Firestone, US Royal, Coker Classic, Universal Vintage Tire, BFGoodrich, Excelsior, Avon, Goodyear, and STA. Those brands appear across several classic bias-ply series, with choices that range from plain blackwall to restoration-oriented whitewall styles.
Brand selection is most useful when paired with the details that actually change the fitment and appearance story. Comparing sidewall style, rim-width specification, tire series, and load information can tell you more than the brand name by itself. For a stock-looking car, the visual treatment may matter most, while a regularly driven car may push wheel and setup verification higher on the list.
Restoration & Appearance
Which tire should I choose for a period-style 1949 Ford Custom?
A period-style 1949 Ford Custom usually starts with the original-size 670-15 bias-ply format. That keeps the car in its traditional tire sizing system and preserves the visual proportions associated with a late-1940s full-size Ford, while still leaving room to choose among blackwall, narrow whitewall, and wide whitewall presentations.
The best appearance choice depends on how the car is being restored and presented, not on a one-style-fits-all rule. If exact historical authenticity is important, compare the tire choice against marque references, period photography, or other vehicle-specific documentation. Once the visual direction is clear, wheel width and product specifications can narrow the options further.
How does tire construction affect the appearance of a restored 1949 Ford Custom?
Tire construction changes more than ride characteristics on a restored 1949 Ford Custom; it also changes the car’s visual impression. A 670-15 bias-ply keeps the vintage sizing format and traditional profile expected on a postwar Ford, while a radial equivalent can introduce a more modern look even when the wheel diameter stays the same.
That difference is why many restoration-minded owners start with bias-ply when appearance is the first priority. A bias-look radial can be worth considering if you want a more traditional presentation with radial construction, but it should still be treated as an alternative fitment that needs wheel and clearance checks rather than as an automatic substitute.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1949 Ford Custom?
Yes, modifications can change tire fitment on a 1949 Ford Custom even when the intended tire size remains 670-15 or one of its radial equivalents. Aftermarket wheels, changes in wheel width, suspension work, ride-height alterations, or body modifications can all affect how much room the tire has.
That is especially important on older cars that may have been updated several times over the decades. A tire that suits a stock-style 15-inch setup may need a closer review on a modified car, particularly at the front wheels where steering travel matters. Checking wheel dimensions and full-lock clearance helps prevent expensive mistakes.
What should I inspect before driving a 1949 Ford Custom on new tires?
Before road use, inspect the wheels for correct diameter and condition, make sure the tires seat properly, and verify that inflation is set appropriately for the chosen tire. It is also wise to confirm that the car has adequate clearance at the fenders, suspension, and steering points with the wheels pointed straight and turned.
A 1949 Ford Custom may spend long periods parked, so the rest of the chassis deserves attention as well. Check for worn steering parts, weak shocks, loose wheel hardware, and anything that could affect how the new tires track on the road. A careful first inspection makes the tire choice work the way it should.
How should 670-15 tires on a collector 1949 Ford Custom be maintained?
670-15 tires on a collector 1949 Ford Custom should be kept properly inflated, inspected regularly for cracking, bulges, cuts, and uneven wear, and checked for air loss before longer drives. Cars that see limited use benefit from frequent visual inspections because tire aging can matter even when tread wear looks minimal.
Storage conditions also play a major role in preserving older-style tires. Keeping the car away from prolonged sunlight, moisture, excess heat, and ozone sources can help protect the sidewalls and overall condition. Regular movement, periodic pressure checks, and a quick look at clearance and tread before each outing are smart habits for any collector Ford.