1948 Chevrolet 6 Cyl. Tires

A 1948 Chevrolet 6 Cyl. uses either 600-16 or 670-15 as its primary tire size, and both are bias-ply fitments. The correct one depends on the wheel diameter on the car, since 600-16 uses a 16-inch rim and 670-15 uses a 15-inch rim.

That means the first job is confirming the actual wheels rather than assuming every 1948 Chevrolet 6 Cyl. uses the same setup. Many collector cars have had wheels changed over the years, so measuring rim diameter and checking wheel width before choosing a tire helps prevent ordering the right-looking tire in the wrong size.

The 1948 Chevrolet 6 Cyl. appears with two rim diameters: 16-inch rims for 600-16 tires and 15-inch rims for 670-15 tires. Both sizes belong to this vehicle, so the wheel diameter must be matched to the tire size rather than treated as interchangeable.

A quick visual guess is not always enough on an older Chevrolet, especially if wheels were replaced during restoration or years of service. Measuring the wheel and confirming its width is the practical next step, because 15-inch and 16-inch fitments lead to different tire choices, sidewall options, and radial-equivalent possibilities.

All covered 1948 Chevrolet 6 Cyl. models share the same two primary tire sizes: 600-16 and 670-15. The fitment difference is tied to the wheel setup on the car, not to a separate sub-model-specific tire program within the covered range.

That makes the buying process simpler in one way, since there is no need to sort through several trim-specific sizes. The important check is whether the car currently wears 15-inch or 16-inch wheels, then choosing the right bias-ply tire style or, in the case of 670-15, considering one of the available radial-equivalent options.

On a 1948 Chevrolet 6 Cyl., 670-15 is a primary bias-ply tire size. It is the traditional fitment used on a 15-inch rim, and the available tires in that primary size are bias-ply products rather than modern radial primary fitments.

That distinction matters because a bias-ply tire preserves the original sizing convention and traditional look, while a radial alternative falls into the equivalent category instead of the primary fitment category. Anyone considering a change should review wheel width, overall dimensions, and clearance rather than assuming every 15-inch radial option behaves like the original 670-15.

Radial equivalents for 670-15 include 195R15, P205/75R15, P215/70R15, and 670R15. Those cover an 80-series metric radial, a 75-series P-metric radial, a 70-series P-metric radial, and a bias-look radial choice for buyers who want a more traditional visual presentation.

Each of those sizes should be treated as an alternative to compare, not as an automatic substitute. A 5-7 inch rim-width range is associated with the equivalent group, and it is wise to confirm wheel width, section clearance, and overall vehicle setup before moving from the original bias-ply size to any radial equivalent.

Start by confirming that the car is using the 670-15 fitment, since that is the size with stated radial equivalents. Then check the wheel diameter, wheel width, and the dimensional relationship between the original bias-ply size and the radial alternative being considered, whether that is 195R15, P205/75R15, P215/70R15, or 670R15.

Collector cars often carry replacement wheels, suspension work, or body adjustments that change available clearance. Looking at front steering sweep, rear fender space, tire-to-suspension clearance, and the overall condition of steering and suspension parts helps make the switch more predictable and keeps a construction change from creating an avoidable fitment problem.

The main decision points are the correct primary size, the wheel diameter on the car, and the kind of appearance or use the Chevrolet is meant for. A 16-inch wheel calls for 600-16, while a 15-inch wheel calls for 670-15, and both are bias-ply fitments with different product ranges.

After size is confirmed, compare sidewall treatment, tire series, and wheel-width suitability. A blackwall can give a simpler look, while whitewall styles can push the car toward a stronger restoration presentation. If the car uses 670-15, the availability of radial equivalents also becomes part of the decision for owners balancing traditional appearance with alternative construction.

Sidewall choices for the 1948 Chevrolet 6 Cyl. include blackwall, wide whitewall, narrow whitewall, and double-whitewall depending on the tire size and product line. The 600-16 range includes blackwall, wide whitewall, and double-whitewall options, while 670-15 adds blackwall, narrow whitewall, and wide whitewall choices.

That sidewall variety can change the car's visual character more than many buyers expect. A blackwall usually reads more restrained, while a whitewall treatment creates a stronger period-style statement. The practical approach is to choose the correct size first, then use sidewall style to match the restoration goal rather than letting appearance lead the fitment decision.

Tires for the 1948 Chevrolet 6 Cyl. are available from brands including Firestone, BFGoodrich, Goodyear, Coker Classic, US Royal, Avon, Excelsior, Universal Vintage Tire, Lester, STA, Camac, and Ford Script depending on the size and series. Both 600-16 and 670-15 have broad brand coverage within bias-ply offerings.

The useful comparison is not simply the brand name, but how each product combines sidewall style, tire series, load specification, wheel-width compatibility, and intended appearance. Once the correct size and wheel diameter are confirmed, comparing those details helps narrow the field without assuming that every brand offers the same visual style or fitment emphasis.

A period-style choice starts with the correct primary size for the wheels on the car: 600-16 on 16-inch rims or 670-15 on 15-inch rims. Both are bias-ply fitments, so either one preserves the traditional construction and sizing language that suits a postwar Chevrolet restoration-oriented presentation.

Once the size is settled, sidewall treatment becomes the main appearance decision. Blackwalls create a plainer, more workmanlike look, while whitewall options can give the car a more dressed-up postwar character. If exact originality matters, final cosmetic choices are best checked against marque references or period photos of similarly equipped cars.

On this Chevrolet, the primary fitments are bias-ply tires, and that construction carries the most traditional visual relationship to the car's late-1940s design. The size markings, sidewall shape, and overall presentation of a bias-ply tire generally support a more authentic-looking restoration theme than a modern radial profile.

That does not mean a radial alternative has no place, especially when 670-15 equivalents are being considered for road use. It does mean the car may look different once construction changes, even if the wheel diameter remains correct. Buyers focused on appearance usually start with bias-ply, then evaluate sidewall style before considering a radial conversion.

Yes, modifications can affect tire fitment on a 1948 Chevrolet 6 Cyl., even when the tire size itself is correct. Aftermarket wheels, non-stock wheel widths, suspension changes, brake conversions, or body work can all change the space available for a 600-16 or 670-15 tire.

That is especially important on an older car that may have been altered decades ago. Measuring the actual wheel, checking steering clearance, and looking at tire-to-fender and tire-to-suspension space can prevent surprises. Any time the Chevrolet has been lowered, lifted, or fitted with replacement wheels, those checks matter before selecting either the original bias-ply size or a radial equivalent.

Before road use, inspect the wheels for correct diameter and condition, confirm that lug hardware seats properly, and make sure the tires are inflated appropriately for the application. It also helps to look over steering and suspension components, because looseness or wear can make any new tire feel worse than it should.

A collector car deserves a slower second check before the first real drive. Watch for sidewall interference at full steering lock, verify that the tires clear fenders and inner structure, and recheck air pressure after the car has sat overnight. That extra inspection is especially worthwhile on a 1948 Chevrolet that has been parked or recently returned to service.

Tires on a collector 1948 Chevrolet 6 Cyl. should be inspected regularly for air loss, tread wear, cracking, bulges, and cuts, even if the car is driven only occasionally. Low-use collector vehicles can age tires without accumulating many miles, so appearance and condition matter just as much as tread depth.

Storage conditions also play a major role in tire life. Keeping the Chevrolet away from prolonged sunlight, heat, moisture, and ozone sources helps preserve the sidewalls, and maintaining proper inflation reduces flat spotting during longer parked periods. Periodic movement and a visual inspection before each drive are simple habits that support safer, more predictable road use.