1955 Pontiac 27 & 28 Tires

The primary tire size for a 1955 Pontiac 27 & 28 is 710-15. This is a numeric bias-ply size used on a 15-inch rim, and it is also the fitment used for the covered 1955 Pontiac 27 & 28 8 Cyl. sub-model.

That means the usual question is not which primary size fits, but which 710-15 tire best suits the car’s appearance and intended use. Buyers should still confirm the actual wheel diameter and width on the vehicle, especially if the car has been changed from its original wheel setup over the years.

The 1955 Pontiac 27 & 28 uses a 15-inch rim with its primary 710-15 tire size. Product fitments in this size are built around that 15-inch wheel diameter, which is the first measurement to confirm before selecting a replacement tire.

Wheel diameter is only part of the picture, because wheel width also matters when comparing available tires or considering a radial equivalent. A car that now has replacement wheels, custom wheels, or later Pontiac rims may still measure 15 inches in diameter but need a closer look before tire selection.

A 710-15 is a vintage numeric bias-ply tire size. The 710 identifies the tire’s nominal section-width class, while the 15 indicates the wheel diameter in inches, so this size is intended for a 15-inch rim on the 1955 Pontiac 27 & 28.

Modern buyers sometimes expect a size like this to read like a contemporary metric radial, but it follows an older sizing system. Understanding that helps when comparing period-style bias-ply tires to radial equivalents, because the numbers and construction type are different even when the sizes are meant to serve the same vehicle application.

For the 1955 Pontiac 27 & 28, 710-15 is the primary bias-ply tire size. The available products in this fitment are bias-ply offerings, which matches the traditional construction type associated with this mid-1950s Pontiac application.

Staying with bias-ply construction keeps the visual character and size format consistent with the original-style fitment. A buyer thinking about radial alternatives should treat that as a separate decision, then verify the actual wheel width, tire dimensions, and clearance rather than assuming a radial equivalent will behave exactly like the bias-ply tire.

Radial equivalents for 710-15 include 205R15, P215/75R15, P225/70R15, and 710R15. Those cover an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial option in a format meant to retain a more traditional appearance.

These are useful alternatives, but they should not be treated as automatic replacements. The radial-equivalent range for this application is associated with a 6-8 inch recommended rim width, so the actual wheel width, vehicle stance, and available steering and fender clearance all deserve a careful check before making the change.

A bias-look radial equivalent is available for the 1955 Pontiac 27 & 28 in size 710R15. That option is meant for buyers who want radial construction while keeping a tire presentation that remains closer to the original bias-ply visual style.

That can be an appealing middle ground on a restoration-minded car, but the fitment still needs to be verified on the actual wheels and vehicle setup. Checking rim width, overall clearance, and any suspension or wheel changes is especially important because a bias-look radial is still a radial, not a bias-ply tire.

Start with the correct primary size, which is 710-15, then compare construction and appearance. For this Pontiac, the available 710-15 choices are bias-ply tires offered with blackwall, narrow whitewall, and several wide whitewall treatments across multiple classic tire series and brands.

The right choice depends on how the car will be presented and used. A restoration-oriented owner may focus on whitewall style and period-style appearance, while a driver may pay closer attention to wheel-width compatibility, max load figures where stated, and whether the current wheel setup still matches the original-type fitment.

The available 710-15 tires for a 1955 Pontiac 27 & 28 include blackwall, narrow whitewall, and wide whitewall sidewall styles. Wide whitewall options appear in several widths, which gives this Pontiac a broad range of traditional mid-1950s visual treatments.

Sidewall style can change the car’s character as much as the wheel cover or trim ring, so it is worth choosing carefully. Buyers interested in a more understated look may lean toward blackwall or narrow whitewall, while a fuller period-style presentation often points toward one of the wider whitewall options.

Tires for the 1955 Pontiac 27 & 28 are available from BFGoodrich, Firestone, Goodyear, Universal Vintage Tire, and US Royal in the primary 710-15 fitment. The assortment includes several classic bias-ply series, with differences in sidewall treatment and some product specifications.

Brand choice is best viewed as part of the overall presentation rather than as a shortcut to the right tire. Once the correct size and wheel setup are confirmed, compare the available series, sidewall style, and any stated rim-width or load details to match the car’s restoration direction and intended driving use.

A period-style 1955 Pontiac 27 & 28 starts with the original-size 710-15 bias-ply fitment. Within that size, the most relevant decisions are sidewall treatment and tire series, since blackwall, narrow whitewall, and multiple wide whitewall choices can all change the finished look of the car.

The best visual match depends on the specific restoration goal rather than a single universal answer. Owners chasing exact historical appearance should compare the tire choice against period photos, marque references, and vehicle-specific documentation, while drivers seeking the right stance and era feel can use 710-15 as the proper starting point.

On a restored 1955 Pontiac 27 & 28, tire construction affects both the side profile and the overall visual impression. A 710-15 bias-ply tire preserves the original-style sizing format, while a radial equivalent can change the way the tire presents even when it serves as an alternative in the same general application.

That difference matters most on a mid-1950s car where whitewall treatment and tire shape are part of the design language. Buyers who prioritize road manners may still consider a radial equivalent, but anyone focused on a traditional restoration look should compare construction as carefully as size and sidewall style.

Yes, modifications can affect tire fitment on a 1955 Pontiac 27 & 28 even when the intended tire size is still 710-15. Changes such as aftermarket wheels, different wheel widths, altered ride height, brake conversions, or suspension work can all influence clearance and the way the tire sits on the car.

That is especially important when moving from the original bias-ply fitment toward a radial equivalent. A wheel that still measures 15 inches in diameter may not have the same width or positioning as the original-style setup, so checking wheel measurements and tire clearance at full steering lock is a smart step.

Before driving a 1955 Pontiac 27 & 28 on new tires, inspect the wheels for correct diameter and condition, confirm the tires are properly seated and inflated, and look over valve stems, lug hardware, and clearances at the fenders and suspension. A short low-speed check for rubbing or unusual vibration is also worthwhile.

Collector cars often spend long periods parked, so it also helps to inspect the rest of the running gear before putting miles on fresh tires. Steering looseness, worn suspension parts, or brake issues can make a correct new tire feel wrong, even when the actual tire size and wheel fitment are appropriate.

710-15 tires on a collector 1955 Pontiac 27 & 28 should be maintained with regular pressure checks, routine visual inspection, and careful storage habits. Look for sidewall cracking, tread damage, bulges, flat spotting from long storage, and any signs of slow air loss before and after driving.

A collector Pontiac often sees infrequent use, which makes age and storage condition just as important as tread depth. Keeping the car away from prolonged sunlight, excess heat, moisture, and ozone sources can help protect the tires, and periodic movement or inspection reduces the chance of discovering a problem only when road use is planned.