Fire Engulfs Mopar Small-Block at Engine Masters

During Buck Hinkle’s Vintage-class dyno pull at Engine Masters Challenge 2016, a cracked oil filter gasket sprayed pressurized oil onto red-hot headers and turned a routine run into an open flame in seconds. Host Steve Dulcich’s unbothered reaction became almost as memorable as the fire itself. It’s a reminder of how quickly a small, cheap part can end a competitive engine build’s day. Watch the moment a dyno cell nearly became a bonfire.

Dyno day at Engine Masters Challenge is supposed to be about numbers — horsepower curves, torque peaks, bragging rights between builders who’ve spent months chasing tenths of a point on an engine dyno. Then, during Buck Hinkle’s pull in the Vintage class in 2016, the story stopped being about numbers entirely. A small mechanical failure turned into an open flame in seconds, right there on the dyno cell floor, in front of a crew that had exactly one job left: stay calm and put it out. What happened next says a lot about what it actually takes to run high-strung engines on demand.

A Cracked Gasket, Not a Blown Engine

According to HOT ROD’s own reporting, the fire wasn’t caused by a catastrophic internal failure — it started when an oil filter gasket cracked during Hinkle’s dyno pull, spraying pressurized oil directly onto the engine’s red-hot exhaust headers. On an engine running near its power peak, header surface temperatures easily exceed the flash point of hot engine oil, which means a gasket failure at exactly the wrong moment turns from a minor leak into an open flame almost instantly.

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Steve Dulcich’s Reaction Became the Real Story

HOT ROD host Steve Dulcich was standing near the dyno cell when the fire broke out, and multiple commenters have specifically praised how unbothered he appeared while flames engulfed a car he was actively covering. One viewer joked that Dulcich stayed “as calm as a cucumber” on the outside while presumably panicking internally — a reaction that’s become as memorable to longtime viewers as the fire itself, and a small window into the kind of composure that comes from years around engines that don’t always behave.

The Vintage Class and What It’s Actually Judging

Engine Masters Challenge’s Vintage class exists specifically for period-correct or period-style engine builds, competing on a dyno under strict rules about induction type, compression, and component authenticity rather than outright power. A Polyspheric Mopar engine — Chrysler’s early cylinder-head design predating the more famous wedge and Hemi heads — competing in this class represents exactly the kind of deep-cut engineering choice the Vintage category rewards, which makes losing a run to a gasket fire that much more frustrating for the builder involved.

Why Nobody Had a Fire Extinguisher Ready

One of the most-repeated observations in the comments is genuine surprise that an engine dyno facility — a space specifically built around running high-horsepower engines under stress — didn’t have a fire extinguisher immediately within reach when the fire started. It’s a fair point, and one that reflects a real gap in a lot of amateur and even semi-professional dyno setups: fire suppression tends to get treated as a formality until the exact moment it’s actually needed.

What an Oil Filter Gasket Failure Reveals About Engine Building

A failed oil filter gasket is a small, cheap component, and its failure here is a reminder that catastrophic engine dyno incidents are rarely caused by the exotic, expensive parts — they’re usually caused by something small, inexpensive, and easy to overlook during final assembly. For engine builders watching this footage, it’s less a cautionary tale about horsepower and more one about torque-checking every fastener and gasket before a car ever makes it onto the rollers.

Engine Masters Challenge’s Reputation for Unscripted Drama

HOT ROD’s Engine Masters Challenge has built its television and online presence around exactly this kind of unscripted tension — real builders, real dynos, and genuine mechanical failures playing out on camera without a script protecting anyone from embarrassment. A fire during a competitive pull is a worst-case outcome for whoever built the engine, but it’s also precisely the kind of unpredictable moment that has made the franchise appointment viewing for engine-building enthusiasts for years.

What Made the Polyspheric Mopar Choice Notable

Chrysler’s polyspheric cylinder head design, used on some of its engines through the 1950s and into the early 1960s before being phased out in favor of wedge and Hemi combustion chambers, represents a genuinely uncommon choice for a modern engine-building competition. Choosing to campaign a Polyspheric-headed Mopar in the Vintage class instead of a more common small-block or big-block wedge configuration signals a builder more interested in engineering trivia and period authenticity than in simply chasing the highest number on the dyno sheet, which is exactly the kind of entrant Engine Masters’ Vintage class was designed to reward.

How Dyno Cell Fires Typically Get Handled

Professional dyno facilities are generally built with fire suppression systems and trained staff specifically because oil, fuel, and red-hot metal exist in close proximity throughout every single pull, and incidents like this one, while rare, are a known occupational hazard of the testing process. The relatively fast, contained resolution of this particular fire — without any reported injuries and without the segment being cut from the broadcast — suggests the facility’s safety protocols, even if a fire extinguisher wasn’t immediately visible on camera, ultimately did their job.

The Bigger Picture at Engine Masters Challenge

Every season of Engine Masters Challenge features dozens of dyno pulls across multiple engine classes, and the vast majority end without incident — a fire like Hinkle’s is memorable specifically because it’s the exception rather than the rule. That rarity is part of why this particular clip has outlasted plenty of other Engine Masters footage in the cultural memory of the show’s audience: viewers have seen hundreds of successful pulls, but they remember the one where things briefly went sideways in the most literal sense.

How the Story Ended for Hinkle’s Engine

HOT ROD’s coverage of the incident treated it as a serious but contained event — the kind of dyno-cell fire that ends a specific pull and likely damages wiring, hoses, or paint, without necessarily destroying the engine itself. For Buck Hinkle and his Polyspheric Mopar build, it meant an abrupt, dramatic end to a Vintage-class run that had, up until that moment, been just another competitive dyno pull among many. It remains, years later, one of the more talked-about moments in the show’s long dyno-day history.

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