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American Piston Works
About

We build
your engine.

Performance engines built in Nampa, Idaho — around your vehicle, your horsepower goals and the way you actually plan to use it.

Cruiser. Hot rod. Muscle car. Truck. LS swap. Restoration. Diesel. Performance.

Whether you want a dependable street engine or serious horsepower, we build the engine around your project rather than pulling one off a shelf.

That means the conversation starts with the vehicle and how it gets used, not with a part number. A cam that suits a weekend cruiser will disappoint on the strip, and a combination built for the strip is miserable in traffic. Getting that right the first time is most of the value of having an engine built rather than bought.

We are in Nampa, Idaho, in the same building as Mechanic Super Store, our sister company for tools and shop equipment.

How we work

Built on the bench

01
Craftsmanship
Uncompromising attention to detail in every block, crank, and piston we seat. Built to last under pressure.
02
Tailored
We build the engine around your specific horsepower goals and planned vehicle use — not a one-size-fits-all crate.
03
Experts
Work with approachable performance specialists who understand American iron and vintage power.

Come and see it

3606 E Newby St
Nampa, ID 83687