1967 Dodge Coronet R/T HEMI 528

This 1967 Dodge Coronet R/T carries a factory badge and a nowhere-near-factory heart: a 528 cubic inch Ray Barton Hemi making more than 809 horsepower on pump gas, backed by a TorqueFlite automatic and 3.55 gears built for real street use. One viewer joked the car needed eight gas station stops just to survive filming. Behind the joke is a genuinely serious build from one of Mopar’s most respected engine shops. Watch to see what 809 pump-gas horsepower actually looks like in motion.

Eight hundred and nine horsepower on pump gas sounds like a typo until the fuel gauge actually starts moving in real time. That is the number attached to this 1967 Dodge Coronet R/T, a car that wears its factory badge honestly right up until the moment the throttle opens and a 528 cubic inch Hemi, built by one of the most respected names in Mopar racing, takes over completely. One commenter joked that the car needed roughly eight separate gas station stops just to survive filming. The real story is what it actually took to build an engine that thirsty and still legally call it street legal on pump fuel.

A 1967 R/T With a Very Different Heart

The Coronet R/T nameplate began in 1967 as Dodge’s first Road and Track badged model, originally offered from the factory with either the 440 Magnum or the legendary 426 Hemi. This particular example has been reengineered so far beyond that factory 426 that it now functions as a period-correct body wrapped around a thoroughly modern engine build, which is exactly the tension that makes the car interesting rather than a straightforward restoration.

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The 528 Cubic Inch Ray Barton Hemi

At the center of that build sits a 528 cubic inch Hemi assembled by Ray Barton Racing Engines, a shop with decades of history producing record-setting Hemi builds for both dedicated street cars and serious competition applications. Rated here at more than 809 horsepower while still running on ordinary pump gasoline rather than race fuel, it represents a genuinely difficult engineering target, since the compression ratios and camshaft profiles that usually produce that kind of output almost always demand race-only fuel to avoid detonation.

TorqueFlite and 3.55 Gears – Built to Actually Drive

Behind that engine sits a TorqueFlite 727 automatic transmission paired with a comparatively tall 3.55 to 1 rear gear, a combination chosen specifically for street driveability and relaxed highway cruising rather than the shortest possible quarter-mile launch. That gearing choice signals plainly that this car was built to actually be driven on real roads, not simply trailered from one static car show to the next.

What Ultimate Street Hemi Actually Means

The description frames the build directly as an Ultimate Street Hemi, language that draws a clear line between genuinely street-driven, high-horsepower cars and strip-only machines that never see a public road. Keeping an engine producing more than eight hundred horsepower streetable typically requires a long list of supporting modifications, from upgraded cooling and fuel delivery systems to reinforced drivetrain components capable of absorbing that much torque without failing.

Ray Barton’s Reputation in the Mopar World

Ray Barton HEMI Racing and Street Engines has built a reputation over decades specifically for pushing big-block and Hemi architecture well past factory limits while still holding onto real-world reliability. In a community this specialized, an engine builder’s name carries almost as much weight as the car’s own model year, and Ray Barton’s involvement here is effectively a guarantee of build quality to anyone familiar with the shop’s history.

The Personal-Friend Detail That Changes the Video

One comment identifying the car’s owner as a personal friend of the channel reframes the entire video, turning it from a random showcase into documented proof of a real relationship between builder, owner, and creator. That kind of trust typically produces far more candid access to a car’s complete specifications and build history than a one-off feature filmed at a random car show ever could.

Why 4K and Pump Gas Both Matter Here

The description’s own emphasis on 4K UHD production quality and genuine pump-gas capability both target the same audience, enthusiasts who want to see, in the highest fidelity available, that extreme horsepower and everyday drivability are not actually mutually exclusive in a Hemi build done correctly. That combination, high output without race fuel, is precisely what separates a serious engine build from a purely theoretical one.

Eight Gas Stations and What They Actually Prove

Eight trips to the gas station, whether the exact figure was a joke or close to literal truth, is the kind of detail that sticks with viewers precisely because it is so easy to picture. An engine drinking fuel that fast is doing real, verifiable work every time the throttle opens, and that single throwaway comment ends up communicating the car’s character more efficiently than any dyno chart could.

A Hundred Extra Cubic Inches, Done Right

It is worth putting the 528 cubic inch displacement in context against the factory 426 Hemi it effectively replaces under this car’s hood. That is more than a hundred cubic inches of additional displacement squeezed into essentially the same basic architecture Chrysler engineers originally drew up in the early 1960s, and reaching that size responsibly requires a stronger block, a longer stroke crankshaft, and pistons and rods capable of surviving cylinder pressures the factory engine was never designed to handle. Ray Barton’s shop built its entire reputation solving exactly that kind of problem for Mopar owners who wanted more displacement without sacrificing the reliability a street-driven car actually needs mile after mile.

Driven Hard Instead of Preserved

A build like this also says something about where Mopar culture has landed decades after the original muscle car era ended. Rather than treating a numbers-matching 1967 Coronet as an untouchable museum piece, an owner willing to install a modern 809 horsepower Hemi is making a deliberate statement that these cars were built to be driven hard, not preserved behind velvet rope, and that philosophy runs directly counter to the more conservative, originality-obsessed side of the classic car hobby. Whether that is the right way to treat a genuine 1967 Coronet is exactly the kind of argument this car is built to start every time it pulls into a show. For now, the fuel gauge and the exhaust note are doing all the talking. Eight gas stations later, nobody involved seemed to mind the bill. That is what an honest 809 horsepower actually costs to run. Not one bit.

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