1973 Chevrolet Van Tire Fitment Guide

1973 Chevrolet Van vehicles use 11 sizes across two model lines: E78-14, 700-14, F78-14, G78-14, 670-15, G78-15, H78-15, HR78-15, 800-16.5, 875-16.5, and 950-16.5. Sportvan uses F78-14, G78-14, G78-15, H78-15, 800-16.5, and 875-16.5, while the Van uses E78-14, 700-14, F78-14, 670-15, G78-15, H78-15, HR78-15, 800-16.5, 875-16.5, and 950-16.5. Rim diameters span 14, 15, and 16.5 inches, and rim-width guidance varies by size, from 4.50-5.00 inches on some 670-15 applications up to 6.50-6.75 inches on 950-16.5.

That means year and make alone are not enough for a confident tire choice on a 1973 Chevrolet Van. Start by confirming whether you have a Sportvan or a standard Van, then verify the wheel diameter already on the vehicle before comparing sidewall style, load range, or construction. Once those two points are settled, the size family becomes much easier to narrow down.

On a 1973 Chevrolet Van, 670-15 is a numeric bias-ply size. The 670 portion is the older nominal section-width designation used before modern metric sizing became standard, and the 15 identifies the wheel diameter in inches. In this year and make, 670-15 belongs only to the Van model, not the Sportvan, and it appears as a traditional bias-ply fitment with blackwall and wide whitewall versions.

A 670-15 usually appeals to owners restoring a work van or early custom-style build that still wears a period numeric bias-ply size. It also has a narrower wheel fit window than many later 15-inch options, with products covering 4.50-5.00 inch and 5.00-6.00 inch rim ranges depending on brand. Checking the actual wheel width before committing to 670-15 is an important step.

No, 1973 Chevrolet Van models do not all use the same tire size. F78-14, G78-15, H78-15, 800-16.5, and 875-16.5 are shared by both the Sportvan and the Van, but G78-14 is Sportvan-specific, while E78-14, 700-14, 670-15, HR78-15, and 950-16.5 are specific to the Van. The presence of 14-inch, 15-inch, and 16.5-inch applications across the lineup makes model identification especially important.

That difference matters because two vans that look similar at a glance can still call for very different tires. A buyer comparing only by year and make could easily end up looking at the wrong wheel diameter or overlooking the Van-only HR78-15 radial option. Confirm the model badge, body tag, and wheel diameter first, then narrow the search to the sizes tied to that exact model.

For a 1973 Chevrolet Van, H78-15 is a bias-ply size shared by both Sportvan and Van models, while HR78-15 is a radial size used only on the Van. The practical difference is construction, not wheel diameter: both are 15-inch fitments, but bias-ply preserves the period driving feel and appearance language of the era, while radial construction is the more modern-style choice within this year's size family.

Choose H78-15 if your priority is keeping a more original 1970s bias-ply character, especially on a restoration or a van whose look depends on that stance and sidewall presentation. Choose HR78-15 only if your Van is actually set up for that size and your goal leans more toward radial road manners. The key step is confirming the exact tire size already called for on your Van, not simply substituting one for the other because both fit 15-inch wheels.

1973 Chevrolet Van tires are available in blackwall, wide whitewall, narrow whitewall, and dual-white-stripe styles depending on size. The 14-inch and many 15-inch passenger-oriented sizes carry the widest cosmetic range, including whitewall and stripe treatments from Coker Classic and BFGoodrich, while the 16.5-inch truck-style sizes are blackwall only. E78-14 also splits the difference, with both wide whitewall and blackwall versions available.

That variety gives owners room to match the van's personality as much as its fitment. A Sportvan or custom-era build often looks more at home with a whitewall or stripe treatment, while a work-oriented Van or heavier-duty 16.5-inch setup usually aligns better with a plain blackwall. If appearance authenticity matters, compare the sidewall style to period photos of similarly equipped vans before making the final choice.

1973 Chevrolet Van tires are available from Coker Classic, BFGoodrich, STA, Firestone, US Royal, and Universal Vintage Tire, depending on size. Coker Classic appears in several passenger-style bias-ply sizes with whitewall options, BFGoodrich covers select 14-inch sizes, STA supplies the heavier-duty blackwall truck and transport patterns, and 670-15 adds Firestone, US Royal, and Universal Vintage Tire to the mix. Brand coverage changes with the size rather than carrying evenly across the whole van range.

The easiest way to use that information is to think about the van's mission before thinking about the badge on the sidewall. If you need a 16.5-inch commercial-style setup, STA is the focal point. If you are sorting through a 14-inch or 15-inch passenger-style van with whitewall goals, Coker Classic and BFGoodrich become more relevant, while 670-15 offers the widest vintage-brand spread.

Rim-width guidance for 1973 Chevrolet Van tires depends on size. F78-14 and G78-14 use 5.00-7.00 inch rims; E78-14 spans 4.50-7.00 inches on one version and 5.0-6.0 inches on another; 700-14 uses 5.00-5.50 inches; 670-15 covers 4.50-5.00 inches or 5.00-6.00 inches depending on product; G78-15 uses 5.00-7.00 inches; H78-15 uses 5.50-7.00 inches; 800-16.5 uses 6.00-6.50 inches; and 950-16.5 uses 6.50-6.75 inches. No rim-width figure is attached here for HR78-15 or 875-16.5.

That spread shows why wheel diameter alone is not enough. Two 15-inch tires may both mount on 15-inch wheels but still prefer different wheel widths, especially when moving between 670-15, G78-15, and H78-15. Measure the wheel before ordering, and if the van has aftermarket wheels or a long-ago wheel swap, verify actual width rather than assuming it still matches factory practice.

Inner-tube requirements on 1973 Chevrolet Van tires can vary by product rather than staying constant across every size. E78-14 is the clearest example, because one STA Traxion version is explicitly tubeless, while other E78-14 options do not carry that same marking. The rest of the sizes here should be checked by the exact sidewall marking and the wheel design being used, especially on older original wheels.

The practical takeaway is to avoid assuming that every bias-ply tire in a vintage van application is automatically tube-type or automatically tubeless. Tube use depends on both the tire and the wheel, including whether the wheel was designed for tubeless service and whether it is still in suitable condition. Match the tire marking to the wheel you have, and inspect the wheel carefully if it has age, rust, or prior repairs.

Original 1973 Chevrolet Van wheels cannot be treated as interchangeable across all tire sizes, because the year uses 14-inch, 15-inch, and 16.5-inch fitments. A 14-inch wheel will not accept a 15-inch or 16.5-inch tire, and a 15-inch wheel will not accept a 16.5-inch tire even though the numbers seem close. Within a single diameter family, wheel-width compatibility still needs to be checked against the specific size.

That means the first question is always what wheel diameter is on the van now, not which tire looks closest on paper. A van that has been customized, converted for heavier work, or changed over decades may no longer wear the wheel diameter it left the factory with. Confirm diameter from the wheel itself, then compare width against the tire you want to use.

A 1973 Chevrolet Van should be stored on clean, properly inflated tires in a cool, dry space away from direct sunlight, electric motors, welders, battery chargers, and other ozone sources. If the van sits for long periods, move it occasionally so one section of the tread is not carrying the load continuously. Bias-ply tires are more prone to taking a temporary flat spot during storage than radials, so that matters even more on the many bias-ply sizes used on this van range.

If the van will sit for a season or longer, many collectors use tire cradles or support the vehicle in a way that reduces static loading without letting the suspension hang incorrectly. Clean sidewalls gently and avoid petroleum-based dressings. Good storage habits do more for tire life on an infrequently driven collector van than chasing mileage numbers, especially when the vehicle spends much of its time parked.

Tires on a 1973 Chevrolet Van should be judged more by age and condition than by miles driven. A sensible rule for collector vehicles is to begin evaluating tires closely once they reach about five to seven years of age, and to treat roughly ten years as a point where replacement deserves serious consideration even if tread depth still looks generous. The DOT date code on the tire is the starting point for that timeline.

That matters because many vintage vans are used lightly, which can make old tires look better than they really are. Sidewall cracking, hardening, irregular wear, or repeated pressure loss matter more than odometer distance on a hobby vehicle. If the van has been in storage or its tire age is uncertain, inspect date codes and overall condition before planning regular road use.

Tires on a 1973 Chevrolet Van should be inspected before every drive and again before any longer outing or highway trip. Check for sidewall cracking, cuts, bulges, uneven tread wear, embedded debris, and signs of pressure loss. If the van uses a tube-type setup or older wheels that may require tubes, inspect valve stems carefully as well, since stem condition can become just as important as tread condition on an aging collector vehicle.

A short pre-drive walkaround is especially important on vintage vans because they often spend days or weeks parked between uses. Low pressure, weather checking, or a damaged stem can show up long before tread wear becomes obvious. Include the spare in the inspection routine too, since an old but unused spare is still old when you finally need it.

A 1973 Chevrolet Van Sportvan would have been associated with period-correct bias-ply sizing, and the Sportvan uses F78-14, G78-14, G78-15, H78-15, 800-16.5, and 875-16.5 in this year. Passenger-oriented 14-inch and 15-inch options are available with whitewall styles that fit the visual language of the era, while the 16.5-inch choices lean into blackwall commercial patterns. No original-equipment brand should be assumed without checking surviving factory literature or marque-specific references.

For a restoration, construction type, size family, and sidewall appearance usually matter more than simply picking any tire that mounts. A Sportvan restored as a family or custom-era van will often call for a different visual approach than one restored as a stripped utility van. If your van is going before judges or you are chasing factory-level accuracy, compare your size and sidewall choice against original brochures and Chevrolet van specialist sources.

Correct tire fitment matters on a 1973 Chevrolet Van because show judging often considers whether the size, construction type, and sidewall style suit the vehicle's era and presentation. A whitewall bias-ply can look appropriate on a passenger-oriented Sportvan, while a blackwall commercial-style tire may be more appropriate on a work-focused Van or a heavy-duty 16.5-inch setup. An obvious mismatch, such as the wrong diameter family or a sidewall treatment that clashes with the van's period look, can stand out quickly.

The standard is not identical across every event, so marque clubs and event rulebooks remain the final word. Some shows prioritize broad visual authenticity, while higher-level judging can be much stricter about construction and sidewall detail. If the van is being built for points rather than casual display, verify what the judges for that event actually expect before choosing between blackwall, whitewall, stripe, bias-ply, or radial alternatives.

For a 1973 Chevrolet Van using 670-15, the Firestone version is a blackwall bias-ply tire rated at 1450 pounds at 32 psi, mounting on a 4.50-5.00 inch rim and weighing 23 pounds. The US Royal version is also a bias-ply tire rated at 1450 pounds at 32 psi and fitting a 4.50-5.00 inch rim, but it uses a 2 11/16-inch wide whitewall and weighs 22 pounds. The main differences are appearance and slight product weight, not basic fitment.

That makes the choice fairly straightforward for a restoration-minded owner. Firestone suits a blackwall presentation, while US Royal leans toward a more dressed-up period look without changing the basic size family. If your wheel width falls in that 4.50-5.00 inch range, either can work from a fitment standpoint, so the deciding factor usually becomes how you want the van to read visually.

1973 Chevrolet Van tires can be suitable for highway driving when the tires are in good condition, correctly inflated, and used within their construction and load limits. Most sizes here are bias-ply, and no speed-rating letter is attached to those products in the available size markings. The year also includes an HR78-15 radial fitment on the Van, but a safe highway setup still depends on the whole vehicle, including steering condition, brakes, suspension, alignment, and how the van is loaded.

On a full-size van from the early 1970s, the tire is only one part of the highway equation. Even if the tires are capable, an aging chassis or heavily loaded work van can become the bigger limitation at speed. Before regular highway use, make sure the tire size matches the wheel, inspect for age and damage, and treat road speed with the caution appropriate to a tall, older van platform.

Inflation pressure on 1973 Chevrolet Van tires depends on the exact size and product. Examples include F78-14 at 1500 pounds at 32 psi, G78-14 and G78-15 at 1620 pounds at 32 psi, H78-15 at 1770 pounds at 32 psi or 1830 pounds at 45 psi depending on product, E78-14 at 1400 pounds at 32 psi or 1710 pounds at 60 psi single load on one STA version, 700-14 at 1360 pounds at 32 psi, 670-15 at 1450 pounds at 32 psi or 1550 pounds at 32 psi, 800-16.5 at 2045 pounds at 60 psi, and 950-16.5 at 2780 pounds at 60 psi.

Those numbers are tire ratings, not a one-pressure-fits-all recommendation for every van and every axle. Use the owner's manual or factory service information as the baseline for vehicle inflation guidance, then confirm that the tire's own rated pressure and load capacity suit the way your van is equipped and used. Never transfer a pressure figure from one size to another just because the tires share the same wheel diameter.

Before a longer drive in a 1973 Chevrolet Van, inspect all five tires if the spare is carried, looking for cracking, cuts, bulges, irregular wear, loose valve stems, and any sign of pressure loss. Confirm cold inflation pressures, make sure the tire size matches the wheel diameter on the van, and check that the spare is usable rather than simply present. On 16.5-inch applications especially, wheel-and-tire matching deserves close attention because diameter errors are not interchangeable with 16-inch or 17-inch hardware.

A longer trip in a vintage van also calls for a broader mechanical check beyond the tires. Brakes, wheel bearings, steering play, suspension bushings, and lighting can affect road safety just as much as tread condition. Think of the tire inspection as the first checkpoint in a full pre-trip review, not the only one.