The 1973 Plymouth Barracuda came at the end of the E-body era, when Mopar performance and personal-style muscle cars had already developed a loyal following. For many owners today, this car sits at the intersection of restoration detail, street presence, and careful fitment. Tire selection centers on two primary 14-inch bias-ply sizes, 735-14 and F78-14, so the first step is confirming which setup belongs on the car. Available choices include traditional blackwall and whitewall presentations, along with modern radial equivalents for owners considering a different driving feel. The right decision depends on whether the goal is a period-style look, a specific sidewall appearance, or a change in construction.
Which Tire Size Is Right for The 1973 Plymouth Barracuda
The 1973 Plymouth Barracuda uses two primary tire sizes, both in bias-ply construction on 14-inch rims. Because the Barracuda Base is associated with both 735-14 and F78-14, the key is confirming the exact wheel and tire setup already on the car before choosing a replacement. Once that is settled, the decision shifts to sidewall style, brand and series availability, and whether to stay with bias-ply construction or consider one of the radial equivalents.
A 735-14 uses the older numeric bias-ply sizing system, with the 7.35 designation indicating nominal section width and the 14 indicating a 14-inch rim. On a 1973 Plymouth Barracuda, this is a traditional bias-ply fitment for owners who want the look and construction style associated with the period. Available choices in this size include BFGoodrich Silvertown Classic Bias Ply tires in blackwall and narrow whitewall form. It is a useful size to evaluate when maintaining a stock-type 14-inch presentation while choosing between a cleaner blackwall look and a more restoration-oriented whitewall appearance.
An F78-14 uses the vintage alphanumeric bias-ply system, where the letter identifies the general size class, the 78 refers to the profile family, and the 14 identifies the rim diameter. For the 1973 Plymouth Barracuda, this size keeps the car in period-style bias-ply construction while using a format many muscle-era owners recognize. In available products, F78-14 appears in the Coker Classic Bias Ply series with a wide whitewall sidewall treatment. This size deserves careful consideration when the car's existing wheel setup points to F78-14 or when the desired look leans toward a fuller whitewall presentation.
Sub-model fitment is straightforward here because the covered Barracuda Base uses the same two primary 14-inch bias-ply sizes found on the main vehicle listing. Checking the sub-model still matters, but the bigger task is confirming which of those two tire and wheel combinations is actually on the car.
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1973 Plymouth Barracuda Base
The 1973 Plymouth Barracuda Base is associated with both 735-14 and F78-14, and both are bias-ply sizes for 14-inch rims. That makes tire selection less about trim differences and more about confirming the current wheel setup, then deciding whether the goal is period-style replacement, a specific whitewall or blackwall look, or a radial-equivalent alternative.
Bias-Ply to Radial Tire Conversion for the 1973 Plymouth Barracuda
The 1973 Plymouth Barracuda's 735-14 and F78-14 bias-ply sizes each have radial-equivalent options. For 735-14, the equivalents are 185R14 as an 80-series metric radial, P195/75R14 as a 75-series P-metric radial, and P205/70R14 as a 70-series P-metric radial. For F78-14, the equivalents are 195R14, P205/75R14, P215/70R14, and 750R14 as a bias-look radial. These options share a recommended 4-6 inch rim-width range, but wheel compatibility, overall dimensions, and clearance should still be checked before changing sizes or construction.
Modern Radial Equivalents
185R14
Equivalent 80-series Metric Radial (735-14)
P195/75R14
Equivalent P-metric 75-series Radial (735-14)
P205/70R14
Equivalent P-metric 70-series Radial (735-14)
195R14
Equivalent 80-series Metric Radial (F78-14)
P205/75R14
Equivalent P-metric 75-series Radial (F78-14)
P215/70R14
Equivalent P-metric 70-series Radial (F78-14)
750R14
Bias-look Radial Equivalent (F78-14)
Important Considerations When Replacing Bias Ply With Radial
Compare overall diameter and section width carefully to ensure proper fit.
Verify recommended rim range (4-6 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 1973 Plymouth Barracuda Tires for Sale
Available 1973 Plymouth Barracuda tire choices cover both primary sizes, with BFGoodrich and Coker Classic offerings in bias-ply construction. The selection includes blackwall, narrow whitewall, and wide whitewall styles, along with differences in tire series and rim-width compatibility.
Common 1973 Plymouth Barracuda tire questions usually come down to choosing between 735-14 and F78-14, understanding bias-ply sizing, and deciding whether to stay period-style or evaluate radial equivalents. Owners also tend to ask about sidewall appearance, wheel fitment, and pre-drive inspection on collector-era cars.
Tire Size & Fitment
What tire size fits a 1973 Plymouth Barracuda?
A 1973 Plymouth Barracuda uses two primary tire sizes: 735-14 and F78-14. Both are bias-ply sizes designed for 14-inch rims, and the Barracuda Base is associated with both of them. That means the car is not limited to a single size across every setup, even within the same year and model.
The practical next step is to confirm which wheel and tire combination is already on the car before choosing a replacement. Looking at the existing sidewall marking, measuring the wheel diameter, and checking for previous wheel changes will usually answer that question faster than relying on appearance alone.
What size rim does a 1973 Plymouth Barracuda use?
The primary tire fitments for the 1973 Plymouth Barracuda use a 14-inch rim. Both 735-14 and F78-14 are built around that same rim diameter, so the wheel diameter itself stays consistent even though the tire-size formats differ between numeric and alphanumeric bias-ply sizing.
Rim diameter is only part of the fitment picture, so wheel width should still be checked before choosing a tire. The available 735-14 products suit 5.00 to 5.50-inch rims, while the available F78-14 product suits 5.00 to 7.00-inch rims, which can influence which tire makes the most sense on the car.
Why does the 1973 Plymouth Barracuda have more than one tire size?
The 1973 Plymouth Barracuda appears with both 735-14 and F78-14 because more than one primary fitment is associated with this exact year and model. Both are bias-ply sizes for 14-inch rims, but they come from different vintage sizing systems, so they read differently even though they serve the same general era of fitment.
That makes confirmation more important than assumption. A Barracuda that still has its original-style wheel setup may point clearly to one size, while a car that has been changed over time may not. Reading the mounted tire and confirming the wheel width will help narrow the choice before comparing sidewall style or radial-equivalent options.
Bias-Ply & Radial Options
Is 735-14 a bias-ply or radial tire for the 1973 Plymouth Barracuda?
On a 1973 Plymouth Barracuda, 735-14 is a primary bias-ply tire size. It uses the older numeric sizing system and is available in bias-ply construction, which keeps the car in a traditional period-style format rather than moving into modern radial sizing at the primary fitment level.
Radial alternatives do exist for owners considering a change in construction, but the tire should still match the wheel and vehicle setup carefully. A switch from bias-ply to radial is less about reading the same sidewall number and more about checking rim width, overall dimensions, and clearance at the fender and suspension.
What radial tire sizes are equivalent to 735-14 and F78-14?
For 735-14, the radial equivalents are 185R14, P195/75R14, and P205/70R14. For F78-14, the radial equivalents are 195R14, P205/75R14, P215/70R14, and 750R14, with 750R14 serving as the bias-look radial alternative. These options cover Euro-metric, P-metric, and bias-look radial formats rather than one single replacement style.
Each equivalent should be treated as an alternative to evaluate, not an automatic interchange. The recommended rim-width range shown for these equivalents is 4 to 6 inches, and that makes wheel width confirmation especially important before conversion. Clearance at full steering lock and through suspension movement also deserves a careful look.
Should I use bias-ply or radial tires on a 1973 Plymouth Barracuda?
That choice depends on what matters most on the car. Staying with 735-14 or F78-14 in bias-ply construction keeps the Barracuda in its original-era tire format, which many restoration-minded owners prefer for stance and appearance. Radial equivalents are available if the goal is to explore a modernized tire construction in a comparable size range.
The decision should start with the wheel already on the car and the way the Barracuda will be used. A period-style presentation may point toward bias-ply, while a driver-oriented setup may lead an owner to compare radial equivalents. Either way, wheel width and vehicle clearance should be checked before changing construction.
Choosing the Right Tire
What should I consider when choosing a 1973 Plymouth Barracuda tire?
Start with the correct primary size for the car, since the 1973 Plymouth Barracuda uses either 735-14 or F78-14 depending on the setup. From there, the major decisions are construction style, sidewall appearance, and wheel compatibility. Both primary sizes are bias-ply, but each has its own available product mix and radial-equivalent path.
A buyer comparing options should look beyond the size stamp alone. Rim width, sidewall style, tire series, load capacity, and the visual goal for the car all shape the final choice. A Barracuda intended for restoration display may call for a different presentation than one used more regularly on the road.
What sidewall styles are available for 1973 Plymouth Barracuda tires?
The available sidewall styles for 1973 Plymouth Barracuda tires include blackwall, narrow whitewall, and wide whitewall. In 735-14, BFGoodrich offers both blackwall and narrow whitewall versions in the Silvertown Classic Bias Ply series. In F78-14, the available Coker Classic option uses a wide whitewall treatment.
That sidewall choice can change the car's appearance almost as much as the wheel itself. Blackwall generally gives a cleaner and more restrained muscle-era look, while narrow or wide whitewalls move the presentation toward a more traditional restoration style. The best choice depends on the visual direction of the specific Barracuda.
What brands offer tires for the 1973 Plymouth Barracuda?
The available brands for 1973 Plymouth Barracuda tire sizes include BFGoodrich and Coker Classic. BFGoodrich appears in 735-14 with Silvertown Classic Bias Ply options, while Coker Classic appears in F78-14 with a Coker Classic Bias Ply offering. Both are bias-ply choices built around the Barracuda's 14-inch primary fitments.
Brand selection here is really part of a broader product-selection decision rather than a simple badge preference. Since the brands appear in different sizes and sidewall treatments, the first job is confirming the correct size on the car. After that, compare series character, sidewall appearance, and wheel-width suitability within that fitment.
Restoration & Appearance
Which tire should I choose for a period-style 1973 Plymouth Barracuda?
A period-style 1973 Plymouth Barracuda should start with one of its primary bias-ply sizes, either 735-14 or F78-14, depending on the car's wheel setup. That keeps the tire in the same general construction family associated with the era. From there, the choice comes down to the look you want, including blackwall or one of the available whitewall presentations.
For owners pursuing exact historical accuracy, appearance details should be checked against marque references, build information, or other vehicle-specific documentation. A tire can be strongly period-style without automatically matching every original delivery combination. Confirming the existing wheels first also helps keep the restoration from drifting into a mismatched fitment.
How does tire construction affect the appearance of a restored 1973 Plymouth Barracuda?
Tire construction affects more than ride and handling; it also changes how a restored 1973 Plymouth Barracuda looks at a glance. Bias-ply tires such as 735-14 and F78-14 preserve the older sizing language and traditional visual character of the car. A modern radial equivalent can alter that presentation even when chosen in a comparable overall fitment range.
Owners restoring for shows, marque events, or a distinctly original-era look often pay close attention to that difference. Sidewall style also matters, since blackwall, narrow whitewall, and wide whitewall choices create very different visual impressions. Construction and sidewall should be chosen together so the finished car looks intentional rather than pieced together.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1973 Plymouth Barracuda?
Yes. A 1973 Plymouth Barracuda may have the correct tire size on paper and still run into fitment issues if the car has aftermarket wheels, altered ride height, suspension changes, or body modifications. That matters whether the choice is one of the primary bias-ply sizes or a radial equivalent being considered for the same 14-inch wheel diameter.
The safest approach is to confirm the actual wheel width and inspect clearance at the fender, steering, and suspension before mounting tires. A Barracuda that sits lower than stock or uses different wheels can change the available space enough to make old assumptions unreliable, especially when switching sizing formats.
What should I inspect before driving a 1973 Plymouth Barracuda on new tires?
Before driving a 1973 Plymouth Barracuda on new tires, inspect the wheels for correct diameter and condition, confirm that each tire matches the intended size, and check inflation carefully. It also helps to look over suspension and steering components, since worn parts can affect how a newly mounted tire tracks and clears under load.
A collector car deserves a close sidewall and tread inspection even when the tires are fresh. After installation, turn the steering through its full range, verify there is no rubbing, and recheck air pressure after the first few drives. Any vibration, pull, or unusual clearance mark should be addressed before longer road use.
How should 735-14 or F78-14 tires on a collector 1973 Plymouth Barracuda be maintained?
Collector-car tires such as 735-14 or F78-14 on a 1973 Plymouth Barracuda should be kept properly inflated, inspected regularly, and protected from long periods of harsh storage conditions. Because classic cars often sit for extended stretches, sidewall cracking, flat spotting, and slow air loss can develop long before tread wear becomes the issue.
A good maintenance routine includes checking pressure before each drive, looking for cuts or bulges, and examining the tread and sidewalls after storage. Keeping the car away from prolonged sunlight, moisture, and ozone sources can also help preserve the tires. On a low-mileage Barracuda, age and condition matter at least as much as remaining tread.