Shelby AC Cobra 1965 289

Dan Mershon has owned eleven Shelby Cobras, and he says the 289 is the one that actually looks right – no flared rear fenders, none of the bulk that later kit-car replicas chase. Only 580 289 Cobras were built between 1963 and 1965, including six ultra-rare factory Dragon Snake competition cars. Here’s what makes the original narrow-body Cobra a different animal from everything that copied it since.

The car’s Owner is Dan Mershon. Dan shared he likes the Cobra’s with the 289 engine because they don’t look like the kit cars with the wide rear fenders. Well Dan should know a little about these cars because he’s had 11 Shelby AC Cobras in his driving career.

Dan Mershon has owned eleven Shelby Cobras over his driving career, so when he tells you the 289 is the one to have, it’s worth paying attention to why. His reasoning has nothing to do with horsepower bragging rights and everything to do with proportion — the 289 doesn’t wear the bulging, flared rear fenders that later became a Cobra signature, and to Dan’s eye that makes it look nothing like the kit cars that would flood the market decades later chasing the same shape. There’s a real engineering story behind that slim body too, one that traces back to a factory that started with a smaller engine and grew into something else entirely. What actually separates an original 289 from everything that came after it?

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The Narrow Body Nobody Replicates Right

The first 75 Cobras built — prototype included — actually ran Ford’s smaller 260 cubic-inch Windsor V8, with the remaining 51 cars in that first Mk1 run stepping up to the 289. That narrow-body shape, riding on a compact 90-inch wheelbase and just 61 inches wide, is what gives the early Cobra its lean, almost delicate stance compared to the widebody 427s and countless replicas that followed. Dan’s point about kit cars isn’t just nostalgia talking — the flared-fender look so many reproductions chase actually belongs to a later, different Cobra, and slapping it onto a 289-style body misses what made the original shape work in the first place.

A Small Production Run That Still Punches Above Its Weight

Only 580 289 Cobras were built in the CSX2000 series between 1963 and 1965, and that included a handful of genuinely special factory pieces — just six Dragon Snake 289 Cobras were built, purpose-tuned for competition. With the 289 making somewhere in the 271 to 306 horsepower range depending on tune and rating method, and a curb weight that never got out of hand, these cars could hit 135 mph and get there in a hurry despite engine numbers that look modest next to a big-block 427. It’s a car that proves displacement isn’t everything when the whole package is dialed in right.

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