Custom Performance Engines, Automotive Upgrades & Parts in Northeast Ohio

Box Performance delivers custom horsepower solutions.

Box Performance specializes in custom blower and supercharged engine builds, backed by decades of hands-on engine-building and racing experience. We also build naturally aspirated, stroker, and turbo combinations, install performance upgrades, and sell parts directly to the public.

Whether you need a complete engine, upgrades for your existing street car, muscle car, or hot rod, or parts for a DIY project, we help you choose a combination that fits your goals.

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What Are You Planning?

Custom Engines & Rebuilds

At Box Performance, we build custom performance engines for you—not the masses. Thinking about a crate engine? Don’t settle for a one-size-fits-all build. Get an engine tailored to your goals, your setup, and your performance level. We offer engine builds and rebuilds for Chevy, Ford, Mopar, Buick, Pontiac, and Oldsmobile muscle cars.

Build a custom engine around your vehicle, driving style, and performance goals. Explore naturally aspirated, stroker, supercharged, ProCharged, and turbo engine combinations, along with engine rebuilding services.

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Nobody knows Blower Surge like Box Performance. We have decades of experience building, driving and racing blowers cars. Ready for your own blower engine?

Explore Blower Engines

Performance Automotive Services

Upgrade the car you already own. We offer carburetor services, Holley EFI installation and tuning, cylinder head and camshaft upgrades, supercharger installation, suspension upgrades, and additional automotive services.

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Performance Parts for DIY Builders

Doing the work yourself? Box Performance sells new performance parts directly to the public, along with available used parts and special deals.

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Upgrade Your Existing Vehicle

You don’t need to purchase a complete engine to work with Box Performance. We can help with individual upgrades or a broader plan for your vehicle.

Carburetor Services: Repairs, rebuilds, and tuning for your existing combination.
Holley EFI Installation & Tuning: EFI conversions, setup, and troubleshooting.
Heads & Cam Upgrades: Component selection and installation matched to your engine and drivetrain.
Supercharger & ProCharger Installation: Boosted combinations with supporting engine, fuel, and ignition requirements considered.
Suspension Upgrades: Components and installation planned around your ride, handling, and traction goals.

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Plan the Combination Before Buying the Parts

A performance upgrade should work with the rest of your vehicle. Engine specifications, fuel delivery, ignition, cooling, transmission, rear gearing, and suspension can all influence the result.

We start by discussing your current setup, intended use, priorities, and budget. That helps identify compatible components and supporting work before the project begins.

Whether your goal is a comfortable cruiser, stronger street performance, or a track-focused combination, we help you understand the options and tradeoffs.

Buying parts from Box Performance means drawing on decades of hands-on engine-building and performance experience. We help you choose components that work together for your vehicle, goals, and budget—so you can approach your DIY project with confidence.

See Our Work

Explore engine builds, customer vehicles, and installation projects from the Box Performance shop.

Our own Boxvette reflects the enthusiasm behind the business. Alongside our customer projects, it gives you a closer look at the cars and combinations we work with.

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Performance Builds in Action

Box Performance Engines

Common Performance Questions

Can you upgrade my car without replacing the engine?

Yes. Depending on your vehicle and goals, upgrades may involve the carburetor or EFI, cylinder heads and camshaft, ignition, fuel system, suspension, or other components. We evaluate the existing combination before recommending the scope.

Where should I start with performance upgrades?

Start with your intended use and what you want to improve. Tell us about your current engine, drivetrain, modifications, and any running problems. A clear plan helps you choose components that work together.

Can a performance car still be enjoyable on the street?

Yes, with an appropriate combination. Camshaft selection, fuel and ignition setup, gearing, cooling, and suspension all influence street manners. We discuss your expectations for starting, idle quality, comfort, and everyday driving when planning the work.

Can I buy parts and install them myself?

Yes. We sell performance parts directly to the public. Contact us with part numbers or details about your vehicle and project to request pricing and availability.

Can you help if my modified car isn’t running correctly?

Contact us with your vehicle details, modifications, symptoms, and recent changes. We can discuss whether the application fits the systems we service and what evaluation may be needed.

What determines the cost of a performance project?

Cost depends on the vehicle’s starting condition, selected components, installation requirements, supporting upgrades, and tuning. We discuss the scope with you before establishing an estimate.

What should I have ready when I contact you?

Have your vehicle’s year, make, model, engine details, and major modifications available. Tell us how you use it, what you want to change, and your approximate budget. Include part numbers if you already own equipment you want installed.

Blower Surge: What Causes That Idle?

That distinctive rise and fall in a blower engine’s idle gets plenty of attention—including questions about what causes it and whether it signals a problem.

Explore our explanation of blower surge, the factors that affect it, and why the complete engine combination matters.

Learn About Blower Surge

Want to see one of our own supercharged combinations? Meet the Boxvette.

Custom Engine Builders & High-Performance Automotive Solutions

Does your muscle car need upgrades or repairs to its current setup? We’re your one-stop shop for custom engines, engine rebuilds, and high-performance automotive work.

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Family, Cars & Performance

Box Performance is a family-run business with hands-on experience in engine building, automotive upgrades, and racing.

Cars are part of our lives inside and outside the shop. We bring that experience to conversations with customers, whether you’re planning your first upgrade or refining a long-running project.

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