1968 Plymouth GTX in B5 Blue Paint

A 1968 Plymouth GTX in B5 Blue with the rare 440+6 Six Pack setup would be notable on its own, but owner Kevin Plummer’s reason for buying it is what turns heads. He spent years chasing down the exact car his father owned when he was a boy, and he’s owned it since 2015. The comment section fills with strangers telling nearly identical stories about their own fathers.

Some cars aren’t bought so much as reclaimed — chased down decades after a childhood memory refuses to fade. This 1968 Plymouth GTX wears B5 Blue paint over a 440 fitted with the rare Six Pack setup, three two-barrel carburetors instead of one, and it sat on one man’s wish list for most of his life before he actually found it. He wasn’t just shopping for any GTX; he was chasing the exact car his father owned back when he was a boy. Comment sections under videos like this one fill up fast with strangers telling the same story about their own fathers, as if this specific model unlocks a shared memory across an entire generation. What does it actually take to turn a childhood memory into something you can hand down to your own kids?

World of Wheels Brings the Cameras to West Allis

Lou Costabile filmed this episode of “My Car Story” on February 23, 2017, at the World of Wheels car show inside Wisconsin State Fair Park in West Allis, one of the long-running indoor circuit shows that draws serious owners willing to trailer cars in for a weekend under show lighting. That setting matters for a car like this GTX — indoor show lighting has a way of exposing every flaw in a paint job or engine bay, and commenters specifically praised how spotless the engine compartment looked, joking that it was clean enough to find a dropped dime. Costabile’s format stays consistent here: informal conversation with the owner rather than a scripted spec-sheet recitation, letting Kevin Plummer explain in his own words what the car means to him rather than just what’s under the hood. That approach is exactly why the comment section turned into an impromptu memory-sharing thread rather than a typical technical discussion.

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The GTX Was Plymouth’s Gentleman’s Muscle Car

Plymouth positioned the GTX as a step above the Road Runner from its 1967 debut onward, aiming at buyers who wanted big-block performance without the Road Runner’s stripped-down, budget-focused image. Where the Road Runner made a virtue of deleted options and a lower price, the GTX came standard with a 440-cubic-inch V8 and a more upscale trim level, essentially guaranteeing serious performance without requiring the buyer to check an options box for it. That positioning made the GTX Plymouth’s answer to Pontiac’s GTO in a more direct sense than the Road Runner ever was — both were mid-size performance coupes aimed at buyers who wanted comfort alongside power rather than a car built primarily for stoplight racing. The two nameplates, GTX and Road Runner, effectively split Plymouth’s performance buyers by income and taste rather than competing directly against each other.

1968: A Fresh Body and a Familiar Formula

This GTX rides on Chrysler’s fully restyled 1968 B-body, a redesign that gave Plymouth’s mid-size lineup smoother, more sculpted lines than the boxier 1966-1967 cars while keeping the GTX’s standard 440 and upscale trim formula intact. The redesign year is significant among collectors because it marks a clean break from the earlier body style, meaning a 1968 GTX has a genuinely different look and structure from GTX models built just one year earlier. It’s also the same body-style year that introduced the Road Runner nameplate as a distinct model rather than a GTX trim variant, meaning 1968 was effectively the year Plymouth split its performance lineup into the two parallel tracks — budget Road Runner, upscale GTX — that would define the brand’s muscle car identity through the end of the decade.

B5 Blue Over a 440 Six Pack

This particular GTX pairs B5 Blue paint — a color Plymouth introduced for the 1969 model year, making its appearance here worth double-checking against the car’s build sheet since 1968 GTXs technically shipped with a different blue code — with the 440+6 engine option, better known as the Six Pack. Rather than a single four-barrel carburetor, the Six Pack setup uses three two-barrel Holley carburetors mounted on an Edelbrock-style aluminum intake, with the outer two carburetors only opening under hard acceleration for a meaningful jump in top-end power over the standard 440. Factory-rated output for the 440+6 landed around 390 horsepower, a genuine step up from the single-carburetor 440’s roughly 375-horsepower rating, and the option was far rarer on GTXs than on Road Runners since GTX buyers already had the standard 440 covering most of their performance expectations.

The Car His Father Had When He Was a Boy

Owner Kevin Plummer has owned this GTX since 2015, and on camera he explains exactly why this specific car mattered enough to pursue: his father owned a 1968 GTX when Kevin was a boy, and the memory of that car stuck with him long enough that he went looking for the exact combination decades later. That kind of purchase — not just any muscle car, but a deliberate recreation of a specific childhood memory — is a common thread among GTX owners specifically, judging by how many commenters shared nearly identical stories about their own fathers. Plummer talks about the car as something he’s now passing down to his own family, turning a memory he inherited into a tradition he’s actively building for the next generation. That generational framing gives the video a different emotional register than a typical show-and-tell walkaround.

Why “My Dad Had One” Keeps Showing Up in the Comments

The GTX occupies a specific place in muscle car nostalgia because it was priced and positioned as a car a working professional could realistically buy new in 1968 — not a stripped-down budget special, but not an unreachable halo car either — which is exactly why so many commenters describe their own fathers having owned one. That accessibility at the time of sale is part of what makes the model’s current collector value notable: Six Pack-equipped GTXs, rarer than their single-carburetor siblings, now command a real premium specifically because so few were built relative to the standard 440 cars. A documented, correctly optioned 440+6 GTX with an intact family ownership story, like Plummer’s, sits in a different category from a generic muscle car find — it carries provenance that resonates with buyers who grew up around exactly this kind of car.

GTO, Chevelle SS 396, and the Torino GT

The GTX’s direct 1968 rivals included Pontiac’s GTO, Chevrolet’s Chevelle SS 396, and Ford’s Torino GT, all mid-size performance coupes aimed at buyers who wanted a genuinely fast car without sacrificing daily comfort. Where the GTO leaned on brand cachet and the Chevelle split buyers across multiple engine tiers, the GTX’s standard 440 gave Plymouth a straightforward pitch: no need to option up to get serious power, since it came standard on every GTX built. The Torino GT, meanwhile, offered a broader range of engine choices but lacked a factory multi-carburetor option as aggressive as the 440+6 until later in its production run. Among this group, the Six Pack-equipped GTX stood out specifically for offering triple-carburetor performance as a factory option on a car that already came standard with big-block power, a combination none of its direct competitors matched in 1968.

What to Check on a Six Pack GTX

Because the 440+6 setup is both rare and desirable, verifying an original Six Pack GTX means confirming the factory intake manifold casting number, checking that all three Holley carburetors match period-correct specifications, and cross-referencing the fender tag’s engine code against the actual block to rule out a later engine swap or carburetor upgrade performed outside the factory. Six Pack cars are also prone to vacuum-linkage wear on the two outer carburetors’ progressive-opening mechanism, a system that needs periodic adjustment to keep all three carburetors working in sequence rather than opening simultaneously and hurting drivability. Given the B5 Blue paint code discrepancy on this particular car, a buyer or appraiser would also want to confirm the color against the original build sheet, since a repaint in a later-model-year color, even an attractive one, affects a car’s judged originality at serious shows. None of that diminishes what Plummer has built here, but it’s exactly the kind of detail collectors check before assigning top-tier value.

A Tradition Built to Outlast the Original Owner

What started as one father’s 1968 GTX has turned into a multi-generational story, with Kevin Plummer now positioned to hand the same car — or at least the same experience — down to his own kids, closing a loop that started before he was even old enough to drive. That pattern shows up across the muscle car hobby more than almost any other corner of car collecting: buyers chasing not just performance or investment value, but a specific memory tied to a parent, and the GTX in B5 Blue with a 440+6 under the hood happens to be one of the models that triggers that memory for an entire generation of Mopar fans. Shows like World of Wheels give those stories a stage, and videos like this one give them a permanent record, turning a spotless engine bay and a family story into something other GTX owners recognize instantly as their own.

Catch the full video above and leave your thoughts below.

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