1964 Imperial All Models Tires

The 1964 Imperial All Models uses an 820-15 tire as its primary fitment. This is a vintage numeric bias-ply size mounted on a 15-inch rim, and the covered Base sub-model uses the same size.

That makes the first decision fairly simple: stay with the proper primary size, then choose the version of 820-15 that matches the car's intended use and appearance. Before selecting a tire, confirm that the wheels on the car are still 15-inch originals or the same functional size, especially if the car has had wheel changes during restoration or long-term ownership.

The primary tire fitment for a 1964 Imperial All Models uses a 15-inch rim. That rim diameter matches the 820-15 tire size, where the final number identifies the wheel diameter the tire is built to mount on.

Rim diameter is only part of the picture, though, because wheel width still matters when comparing specific tires or considering a radial equivalent. Collector cars are often modified over time, so it is smart to measure the actual wheel on the car and compare that setup against the tire's rim-width guidance before mounting anything new.

Yes. The 1964 Imperial All Models Base uses the same 820-15 bias-ply tire size as the covered model range. There is no separate primary size change within the Base fitment shown here.

That consistency helps narrow the decision to construction style, sidewall treatment, and product choice rather than sorting through multiple primary sizes. It is still worth verifying the actual wheel and tire combination already on the car, since older luxury cars sometimes pick up replacement wheels or later tire substitutions that can complicate a straightforward restoration-oriented fitment.

For the 1964 Imperial All Models, 820-15 is the primary bias-ply tire size. It uses the traditional numeric sizing format associated with vintage American cars of this period rather than a modern radial size designation.

Keeping a bias-ply construction preserves the original-style format and opens the full range of period-style sidewall choices available in this size. A radial can still be considered through an equivalent size, but that is a separate decision that should include checks for wheel width, overall dimensions, and how the car is meant to look and feel once it is back on the road.

Radial equivalents for 820-15 include 235R15, P235/75R15, P255/70R15, and 820R15. Those cover an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial that keeps a more traditional visual presentation.

Each of those sizes gives the buyer a different path from the original bias-ply format, so the decision is not simply radial versus bias-ply. The equivalent rim-width range is 6 to 8 inches, and the car's actual wheel width, suspension condition, and body clearance should be checked before choosing one of these alternatives.

Yes, 820R15 is available as a bias-look radial equivalent for the 1964 Imperial All Models. It is meant to offer a radial construction while preserving a visual character closer to the original 820-15 bias-ply format than a more modern-looking metric radial.

That can make it an appealing middle ground for an owner who wants a traditional presentation without staying strictly with bias-ply construction. The usual fitment checks still apply, including wheel width, overall dimensions, and clearance at the fender and steering points, because a radial equivalent should be evaluated as an alternative rather than treated as automatic interchangeability.

Start with the correct primary size, which is 820-15, and then compare construction, rim-width suitability, sidewall style, and tire series. For this Imperial, the available choices include traditional bias-ply options in blackwall, narrow whitewall, and wide whitewall presentations from several brands.

A large luxury car from 1964 often places as much emphasis on stance and appearance as on simple fitment, so the right tire depends on how the car will be used. A restoration-oriented car may lean toward a period-style sidewall treatment, while a regularly driven car may lead the owner to compare the available radial-equivalent path more closely.

Tires for the 1964 Imperial All Models are available in blackwall, narrow whitewall, and wide whitewall styles within the 820-15 size. That gives the car owner room to match a restrained look or a more formal full-size luxury presentation without leaving the proper primary size.

Sidewall choice changes the car's appearance more than many buyers expect, especially on a broad-sided 1960s luxury car with a tall visual profile. The practical step is to decide whether the car is being restored for period flavor, personal preference, or regular road use, then compare the available whitewall widths and series details within the correct size.

The 820-15 size for the 1964 Imperial All Models is available from BFGoodrich, Firestone, US Royal, Universal Vintage Tire, and Avon. Those brands appear across several series, including Silvertown Classic Bias Ply, Firestone Classic Bias Ply, US Royal Classic Bias Ply, Universal Classic Bias Ply, and Turbospeed Mk4.

Brand choice should be considered alongside construction, sidewall style, and the car's purpose rather than treated as a shortcut to the final decision. On a vehicle like this Imperial, a blackwall, narrow whitewall, or wide whitewall presentation may matter just as much as the brand name, especially when the goal is a particular restoration or driving character.

A period-style approach starts with the primary 820-15 bias-ply size, because it preserves the original-era sizing format and visual proportions associated with a 1964 Imperial. From there, the main choices are among blackwall, narrow whitewall, and wide whitewall versions offered across several classic bias-ply series.

The right selection depends on the presentation you want the car to carry, from understated to more formal luxury styling. When exact originality matters, appearance details such as whitewall width should be checked against marque references, period photography, or restoration records so the finished car reflects the look you are trying to reproduce.

Tire construction changes more than ride characteristics on a restored 1964 Imperial All Models; it also influences the car's visual stance and authenticity of presentation. An 820-15 bias-ply keeps the vintage numeric format and traditional look, while radial equivalents introduce a more modern sizing convention or profile.

That distinction matters on a full-size luxury car, where sidewall shape and overall tire presence are easy to notice. A bias-look radial can bridge some of that gap, but it still should be viewed as a radial alternative rather than the same thing as a bias-ply tire, especially when restoration appearance is a major priority.

Yes, modifications can affect tire fitment on a 1964 Imperial All Models even when the intended size remains 820-15. Wheel changes, altered suspension height, replacement springs, brake conversions, or bodywork differences can all change the space available around the tire.

That is especially important when considering a radial equivalent, since the original bias-ply size and a modern alternative should not be treated as automatically interchangeable. A careful check of wheel diameter, wheel width, steering travel, and fender clearance helps prevent surprises once the car is back on the ground and driven under load.

Before driving a 1964 Imperial All Models on new tires, inspect the wheels, valve stems, and lug hardware, then confirm tire pressure and look over the car for obvious suspension or steering wear. A large, heavy 1960s luxury car places real demands on the tires and chassis, so the surrounding hardware matters.

Once the tires are mounted, check for adequate clearance at full steering lock and through normal suspension movement, especially if the car has had wheel or ride-height changes. A short initial road test should also include watching for vibration, pull, or unusual rubbing so any fitment issue is caught early rather than after a longer drive.

Maintain 820-15 tires on a collector 1964 Imperial All Models by checking inflation regularly, inspecting for cracks, bulges, cuts, uneven wear, and signs of air loss, and keeping the car stored away from prolonged heat, sunlight, and ozone sources. Low-use collector cars can age tires even when tread wear remains light.

Regular inspection matters just as much as mileage because a car that spends long periods parked can develop condition issues that are easy to miss. It also helps to look at the tires before any longer outing and to monitor how the car sits and steers, since visible changes can signal pressure loss or developing suspension-related wear.