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UNLIKELY CANDIDATE
Some of it involves learning, but, for the most part, we’re pretty sure it’s something you’re born with, and you either have it or you don’t, and you can’t “fake it ’til ya make it.” We’re talking about vision—not the 20/20 version, but the ability to squint your eyes and see past the ugly duckling and uncover a swan. Tom Flurry has that even more special blend of vision and the ability to perform the work. Before your eyes is colorful proof that below the somewhat homely skin of a stock ’36 Plymouth there is indeed a swan, and Flurry uncovered most of it in his home shop in Mattituck, New York

HOLLEY CARB TUNING
Holley carburetors have long been a staple in the go-fast world of high-performance motoring, whether it’s NASCAR, drag racing or on the street. Much like other performance-oriented products—perhaps even more so with a carburetor—a carburetor requires a fundamental setup and a degree of maintenance, and that’s considering you have chosen the correct-size carburetor for your application, at least to get it in the ballpark. Knowing how to adjust, maintain and even repair your Holley carburetor goes a long way toward helping to ensure that your carburetor will make optimum horsepower for a long time. Because of this, we decided to compile a few troubleshooting and repair tips for the popular 4150-series Holley carburetor, which is the series designation for Holley’s street/strip and racing carburetors.

A TRIBUTE ROADSTER
It all started with my buddy Dave Collins, a flooring contractor who happened to own a ’55 DeSoto sedan, complete with terminal rust. I told him I would be interested in buying the engine,” says Jim Moore, owner of this roadster. “He replied that if I would buy the entire car, he would sell me new carpet for cost plus five percent; this enabled me to haul the DeSoto hulk home and part it out without any complaints from my wife as she gained new carpet in the deal.” And so it goes in the world of hot rodding!
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PRODUCT SPOTLIGHT: ARP’s Head Stud Kit for 1927–31 Ford Model A 4-Cylinder Engines
ARP Brings Modern Engineering to Vintage Ford Engines
Author
The Auto Builder Staff
Photos Courtesy of ARP
In a world obsessed with the latest engines and newest technology, ARP (Automotive Racing Products) just proved something important—progress doesn’t only move forward. It also means going back and applying everything we’ve learned since.
This time, that focus lands on one of the most iconic engines ever built: the 1927–31 Ford Model A four-cylinder.
100 Years of Progress Later
The Ford Model A engine was engineered in a time when simplicity and durability mattered above all else. It wasn’t overbuilt, and it didn’t need to be. It was designed to work—and nearly a century later, the fact that these engines are still running says everything about how right Ford got it.
What’s changed isn’t the engine—it’s everything around it.
A hundred years of advancements in metallurgy, machining, and engine engineering have redefined what’s possible in strength, consistency, and long-term durability. Today, we understand how materials behave under heat, load, and time in ways that simply didn’t exist when the Model A engine first rolled off the line.
That doesn’t change what made the design great—it just means we can now back it up with better materials and smarter engineering.
Modern Engineering Steps In
The ARP head stud kit for the Model A is a direct reflection of that progress. Manufactured entirely in-house at ARP’s California facilities, each stud is produced from premium-grade 8740 chrome moly steel with a nominal tensile strength around 190,000 psi—making it significantly stronger than the original Model A hardware these engines relied on.
These aren’t just material upgrades—they’re process-driven improvements. Threads are rolled after heat treatment, a critical step that increases fatigue strength up to 20 times compared to conventional methods. It’s the same level of engineering ARP applies in professional motorsports and high-performance engine builds, now brought back to a vintage Ford platform.
Every component—from the studs themselves to the hardened washers and polished stainless acorn nuts—is designed to deliver consistent clamping force and repeatable installation. It’s not about changing what makes the Model A great—it’s about making proven, reliable technology even better with everything we’ve learned since.
ARP’s Model A Head Stud Kit
For 1927–31 Ford Model A 4-cylinder
Part Number: #151-4002
MATERIAL & CONSTRUCTION
• 8740 chrome moly steel
• Manufactured in-house
• Threads rolled after heat treatment
KIT INCLUDES
• Complete stud set
• Hardened washers
• Polished Stainless steel acorn nuts
KEY BENEFITS
• Increased strength over OEM hardware
• Improved head gasket sealing
• Maintains torque through heat cycles
• Enhanced long-term durability
ADDITIONAL APPLICATIONS AVAILABLE
• Ford flathead V-8 (1936–53)
• Ford inline 6-cylinder (1965–96), 240 & 300 c.i.d.
Why Builders Will Notice the Difference
Anyone who has worked on a Model A engine knows the value of doing things right the first time. Clean surfaces, proper torque, and careful assembly all matter—but the consistency of the hardware plays a bigger role than most realize.
What ARP fasteners bring to the table is control.
More consistent torque retention. Improved head gasket sealing. Hardware that holds through heat cycles instead of slowly relaxing over time. It’s the kind of upgrade that doesn’t change how the engine looks—but absolutely changes how it performs and survives.
Built for the Way Cars Are Driven Today
Model A engines aren’t just sitting in collections—they’re being driven, modified, and pushed in ways their original engineers never had to consider. Longer trips, higher sustained speeds, and modern traffic all demand more from the platform.
Upgrading to ARP head studs isn’t about chasing performance numbers—it’s about ensuring the engine stays together and performs consistently, mile after mile, without compromise.
The Bottom Line
The Ford Model A helped lay the foundation for everything hot rodding would become. That hasn’t changed.
What has changed is what we’re capable of doing with it.
The ARP Model A head stud kit doesn’t rewrite history—it builds on it—using a century of progress to make a great engine even better.
Ready To Upgrade?
Don’t settle for stock hardware. Give your Model A the ARP advantage—stronger, tighter, built to last.





