Is the Mustang II undervalued — or should it be avoided?

I'm going to be straight with you about the Mustang II: if you're looking for original muscle car performance, this is not your car. The 2.3-litre four-cylinder base model made 88 hp. The V6 made 105 hp. Even the 302 V8 option (1975–1978 only) produced a smog-strangled 139 hp. These are not the cars you raced your neighbor from a stoplight in 1975.

But Here's the Real Story

The Mustang II is built on a platform that accepts engine swaps — a Coyote 5.0, an LS, or a stroked Windsor — with dedicated fabrication kits from multiple suppliers. In my shop, the most common Mustang II inquiry is from builders who want a lightweight, compact body to hang around a modern drivetrain and suspension. The Mustang II delivers that at $6,000–$10,000 for a solid shell, which is a fraction of what a first-gen Camaro or 1969 Mustang costs for the same starting point.

Collector-Grade Variants

• Cobra II (1976–1978): $8,000–$18,000 for documented originals in correct color
• King Cobra (1978 only, T-top standard): $12,000–$22,000
• Mach 1 (1974–1978): $7,000–$15,000
• Ghia (luxury package): $5,000–$12,000

The Market Gap

The Mustang II has been the most neglected segment of the Mustang collector world for 30 years. Values have been quietly rising as restomod builders discover the platform, and a clean Cobra II in original paint with matching-numbers 302 is increasingly hard to find. The collector premium is coming — it just has not arrived fully yet. Buy one now at restomod prices before it does.