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Custom Car Builder Ben Smithson

Custom Car Builder Ben Smithson

Tales of a Gearhead Oct 31, 2025 33 min
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About this episode

Ben Smithson, owner of Smithson Speed & Engineering, shares his journey of building a successful hot rod shop in Tennessee, starting during the pandemic. He discusses the challenges of managing custom builds, including supply chain issues and scope creep, while emphasizing the importance of transparency with clients. The conversation also covers trends in the automotive world, such as the rise of replacement chassis and the popularity of patina vehicles. Ben reflects on his personal projects and the significance of customer satisfaction in the custom car-building process.

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Technical Too Afraid to Ask
Company

Smithson Speed & Engineering

"His name is Ben Smithson, and he owns Smithson Speed & Engineering in Air Murfreesboro, Tennessee. And they are a premier hot rod shop."

Smithson Speed & Engineering is a business that specializes in making custom cars, often called hot rods, which are modified for better performance and style.

Concept

hot rod

"And, you know, Ben's been building stuff for several years, very high-quality things. And the good thing about this conversation that we're going to have is he's a young guy, and he's building high-quality hot rods and muscle cars and rest rods."

A hot rod is a car that has been changed or upgraded to go faster and look cooler, usually by adding a more powerful engine and making other modifications.

Concept

muscle cars

"...he's building high-quality hot rods and muscle cars and rest rods."

Muscle cars are fast cars that usually come from America and have big engines, making them great for going really fast in a straight line.

Concept

restomod

"...he's building high-quality hot rods and muscle cars and rest rods."

A restomod is an old car that has been fixed up and updated with new parts to make it work better and look good while still keeping its classic style.

Part

vintage air

"...that came in for vintage air swap. Pretty cut and dry, easy."

Vintage Air makes air conditioning systems that can be added to older cars. This helps keep the car cool and comfortable, especially in hot weather.

Concept

LS swap

"...it's a harness and gauges, LS swap,"

An LS swap is when you take out the old engine of a car and put in a new engine from a GM model, which is known for being powerful and dependable. It's a common upgrade for people who want to improve their car's performance.

Concept

replacement chassis

"...is the replacement chassis. Yep."

A replacement chassis is like getting a new skeleton for a car. It's used when people want to change or upgrade their car's structure to make it better or fit new parts.

Car

Plymouth Volare

"...go out and get the Volare or the Nova..."

The Plymouth Volare is a small car made in the late 1970s. It was known for being budget-friendly and was often used for everyday driving.

Car

Chevrolet Nova

"...the Volare or the Nova..."

The Chevrolet Nova is a small car that was made from the 1960s to the late 1970s. It's popular among car lovers because it can be easily modified or restored.

Car

Ford Mustang

"...the Nova... Mustang 2s and all the..."

The Ford Mustang II is a smaller version of the famous Mustang made in the 1970s. It was created during a time when cars needed to be more fuel-efficient.

Part

subframes

"Clips and then they went to the subframes from Fatmans and stuff to the clips and now you have complete replacement chassis..."

Subframes are parts of a car that hold the suspension and engine in place. They help the car handle better and reduce vibrations.

Car

Chevrolet Camaros

"...you know, like Camaro's and Mustang's, you can get a brand new chassis."

The Camaro is a sporty car made by Chevrolet. It's known for being fast and fun to drive, and it has been around for many years.

Concept

patina look

"Let's talk about the patina look and the, because that's really popular now. And guys just building old stuff and just running it down the road."

The 'patina look' is when a car looks old and worn, but people like it that way. It shows the car's history and makes it unique, rather than trying to make it look brand new.

Car

Chevrolet Bel Air

"...one of the favorite cars I've ever owned personally was a 62 Chevrolet Bel Air station wagon. It was patina. It was our Arizona car. It had original paint."

The Chevrolet Bel Air is a famous car from the early 1960s, recognized for its classic look and design. The 1962 version has a unique style that many car enthusiasts appreciate.

Term

disc brakes

"...it had, it was lower disc brakes, vintage air, overdrive. Yeah."

Disc brakes are a part of a car's braking system that help stop the car. They work by squeezing a flat disc to create friction, which slows the car down.

Term

overdrive

"...vintage air, overdrive. Yeah."

Overdrive is a feature in cars that helps the engine run more efficiently at high speeds, saving fuel and making the ride smoother.

Concept

patina car

"No, I do like a patina car. We've worked on multiple patina vehicles..."

A patina car is an older vehicle that shows its age with some wear and tear, which many people find appealing. Instead of making it look brand new, some owners like to keep it as is because it tells a story.

Car

Chevrolet LS3

"...because we were doing LS3s from Chevrolet Performance. I remember we could buy one of them like a fully dressed, you know, intact oil pan motor."

The Chevrolet LS3 is a powerful V8 engine that many car enthusiasts use for building or upgrading cars. It's known for being reliable and has a lot of horsepower.

Company

Ride Tech

"you still need parts from ride tech. You still need things from Vintage Air."

Ride Tech makes parts that improve how a car rides and handles on the road, especially for those who want to upgrade their suspension.

Company

I Did It

"you need an I did it column or whatever."

I Did It makes steering columns for classic cars, which help improve how the car steers and looks.

Term

LSWAP

"...we've done has been like LSWAP or something like that. But really..."

LSWAP is when you replace a car's original engine with a different one, specifically a powerful engine from General Motors called the LS. Many car fans do this to make their cars faster and more reliable.

Part

coilovers

"We did rottet coilovers. Nice."

Coilovers are parts of a car's suspension that help control how the car rides and handles. They can be adjusted to change how high or low the car sits.

Part

long tube headers

"We did long tubes and next pipe and different stuff like that."

Long tube headers are parts that help the engine breathe better by letting exhaust gases flow out more easily. This can make the car faster and change how it sounds.

Car

Chevrolet 1932

"You still have the 32 Chevy? I did sell that. That's a cool car. That was a fun little car and that really helped me"

The 1932 Chevy is an old car that many people love because of its unique look and history. It's a classic car that collectors often want to own.

Term

six-speed

"...I had a six-speed in it, 456 gear, had a pretty hot little..."

A six-speed is a type of car transmission that lets you change gears six times. This helps the car go faster and use less fuel compared to cars with fewer gears.

Car

Chevrolet C10

"and hangs out some but the C-10 I wish I had back"

The Chevrolet C10 is an old pickup truck that many people love for its classic look and strong performance. It's popular for restoration projects and is often seen at car shows.

Car

Tesla My Model

"... hot rod would you have? Well, you know, I've got my Model A so, but. Okay, so the Model A."

The Tesla Model Y is an electric SUV that doesn't use gas and is known for being very high-tech and eco-friendly. It's roomy inside and great for families who want to save on fuel.

Car

Ford Model A

"Well, you know, I've got my Model A so, but. Okay, so the Model A."

The Ford Model A is a classic car made by Ford between 1927 and 1931. It was popular because it was affordable and easy to drive, making it a favorite among many people.

Car

Chevrolet 1956

"...So a 2TN post car. 56 Chevy. Wow. I like that."

The 1956 Chevrolet is a classic car that many people admire for its design and history. It's part of a group of cars made by Chevrolet in the mid-1950s that are very popular among collectors.

Car

Chevrolet Chevelle

"... gets tough. Yeah, that's, I've always liked a 70 Chevelle. Yeah."

The Chevrolet Chevelle is a classic car that was made in the 60s and 70s, known for its strong engines and sporty look. Many people admire it for its performance and style.

Car

Buick Gsx

"the Buick GSX. Okay, yeah, yeah. A big yellow one with a big wing on it so fast."

The Buick GSX is a powerful car from the early 70s that was designed for speed and performance. It stands out with its unique look and strong engine.

Term

quarter mile time

"...the quarter mile time, just like man, those cars just, I don't know, they just weren't that fast."

Quarter mile time tells you how fast a car can go from a stop to a quarter mile distance. It's a common way to see how powerful a car is in races.

Car

Toyota Land Cruiser

"So we built a Jeep scrambler. I saw a Land Cruiser on you. Yeah, and we built a Land Cruiser."

The Toyota Land Cruiser is a big, tough SUV that can handle rough roads and off-road adventures. It's also comfortable and has nice features, which is why many people love it for both trips and daily driving.

Car

Ford Bronco

"...un down a beach. And whether it's a Jeep or a new Bronco or whatever, and they all are legitimate things,"

The Ford Bronco is a tough SUV that can go off-road and handle rough terrain. It's popular for outdoor activities and has a cool, classic look that many people enjoy.

Term

horsepower

"We want 1,000 horsepower, yeah. But I don't think you know what the drivability..."

Horsepower is a way to measure how strong an engine is. The more horsepower an engine has, the faster and more powerful it can be.

Car

Jensen Interceptor

"...d do a great job. You know, the guy I sold the V8 Interceptor to, the Cougar, he goes, yeah, I took it down to ..."

The Jensen Interceptor is a stylish sports car from Britain that was made in the late 60s and 70s. It has a powerful engine and a unique look, which makes it stand out among classic cars.

Car

Shelby Cobra

"... days ago and he comes up to me, I was at the big Cobra show and he goes, where are the speed shops in Te..."

The Shelby Cobra is a fast sports car that was made famous in the 1960s. It's loved by car enthusiasts for its speed and racing history, making it a very special car.

15 cars featured

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