Few cars command the same timeless appeal as the classic Ford Mustang. Born in the 1960s and immortalized by film, racing, and street culture, the Mustang has become one of the most personalized vehicles in automotive history. Whether you're building a weekend cruiser or an aggressive street machine, learning how to customize a classic Mustang opens the door to a driving experience that blends heritage with innovation. This guide walks you through the process—from choosing the right model to adding modern power and personal style.

Mustang Model Options for Customization

When customizing a Mustang, your journey starts with the model you choose. Each generation has its own character, with early models offering raw simplicity and later versions delivering a bit more refinement.

1965–1966 Mustangs are among the most popular for custom builds, especially the fastbacks. Their lightweight design, clean lines, and wide aftermarket support make them a go-to for restomods. The simple engine bay layout also allows for modern swaps like the Coyote V8.

1967–1968 models introduce a slightly more muscular look and roomier engine bays, which can better accommodate larger engines and advanced suspension setups. These models strike a great balance between vintage feel and mod potential.

1969–1970 Mustangs, including Mach 1s and Boss variants, offer aggressive styling and more performance out of the gate. While they’re slightly heavier, their strong chassis and distinctive appearance make them ideal for high-power builds or showstoppers.

When selecting your Mustang, also consider the factory drivetrain and platform. For instance, original 6-cylinder models will need more structural reinforcement if you're aiming for modern V8 performance. Meanwhile, a factory V8 car offers a better baseline for power upgrades, improved handling, and braking conversions.

Ultimately, your base car choice impacts everything—from powertrain compatibility to resale value—so make it count.

Modern Upgrades for the Classic Mustang

Restomodding a classic Mustang is all about bridging the past and present. And it starts under the hood. One of the most popular upgrades today is a Coyote engine swap. The 5.0L V8, used in modern Mustangs, delivers reliable horsepower and responsiveness. Matched with a 6-speed transmission, it transforms a 1960s pony car into a modern muscle machine.

Beyond the powertrain, suspension upgrades are critical. Independent rear suspension systems, coilovers, or even Mustang II front clips bring handling and ride quality up to 21st-century standards. Combine that with modern disc brakes and you’ll feel safer and more confident at every turn.

Inside, many builders opt for interior refinements that balance luxury with nostalgia. Think premium leather, upgraded bolstering, and integrated infotainment systems that retain a vintage look but pack in features like Bluetooth and navigation.

For high-end shops like ECD, precision is everything. Every component—whether mechanical or aesthetic—is meticulously chosen and integrated to ensure the build feels seamless. From the stitching on the dash to the throttle response on the street, modern Mustang builds can rival luxury cars while keeping their vintage soul.

Designing a Mustang That Matches Your Personality

The beauty of customizing a classic Mustang lies in making it yours. Whether you lean toward the bold or prefer understated elegance, the design options are virtually limitless.

Exterior styling is where you set the tone. Matte finishes, heritage racing stripes, or deep metallic flake paint jobs can all create a signature look. Custom body kits, carbon fiber accents, and period-correct chrome trim offer the ability to mix modern flair with vintage details.

Wheels and stance also play a major role in how the car is perceived. Some owners prefer wide 18-inch wheels with performance rubber, while others lean toward the classic Magnum 500s or torque-thrust styles. Lowered suspension gives a more aggressive profile and better road grip.

Inside, your material and color selections reflect your lifestyle. A tan leather interior with wood grain accents may evoke a retro-luxury vibe, while Alcantara and carbon fiber scream performance. Whether it's a custom steering wheel, digital gauges with analog styling, or even hidden cupholders, you can build a cabin that complements both your taste and driving habits.

Think about how you’ll use the car. Is it for weekend cruising, complete with comfort and premium audio? Or is it a show car, where visual impact matters most? Maybe it's a daily driver built for reliability and street performance. Your lifestyle drives the design, and a classic Mustang is the perfect canvas to express it.

Conclusion

Customizing a classic Mustang isn’t just about horsepower or paint—it’s about creating a personal connection with one of the most iconic cars ever made. Whether you're dropping in a modern engine, reimagining the interior, or dialing in your perfect paint and wheel combo, every decision shapes a build that’s uniquely yours. Restomodding gives you the best of both worlds: vintage charm and modern confidence—proving that legends don’t just age; they evolve.