Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build 
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POWERSTROKE

When you choose Choate, you’re choosing unmatched quality and performance.
We don’t aim to be the cheapest—we aim to be the best.
Every product we deliver is built with precision and purpose, designed to outperform and outlast the rest.
Stock isn’t an option here; we correct the flaws others overlook and create solutions that keep you working harder, stronger, and longer.
At Choate, quality isn’t a compromise—it’s our standard.

Model C

An engine built with budget in mind to outperform the OEM with all factory shortcomings and issues fixed.

Daily Driver

An engine built for spirited everyday driving and consumer level towing. These engines are fully balanced and torque plate honed. Experience a more efficient and smoother running engine.

Workhorse

A heavy duty engine designed to handle high stress situations and not skip a beat. Perfect for those with a heavy right foot, as well as those who tow heavy or commercially.

Cass-Quatch

An engine purpose built and fully customizable for any of your high performance competition and racing needs.

High Quality, High Performance

Why choose our Powerstroke engines?

High Quality Valves

Unlike our competition, we do NOT modify existing valves in our builds. Instead we use an all new valve with better materials, that do not have common high-heat separation issues.

Crank Gear
Welding

We TIG weld the crank
gear in place to prevent
the gear from spinning,
which throws off timing
and bends all 32 push
rods.

Cam Tunnel Alignment

We do NOT use the aftermarket fix of larger clearance bearings in our builds, which causes low oil pressure. Instead we use our own proprietary bearings that allow for perfect alignment.

Our Services

Need Special Services for your Engine?
Let us Service you with a la carte options.
Block Machining
Piston Machining
Rotational Assembly Machining
Cylinder Head Machining

Customer Reviews

What our customers have to say about our engines.

Great customer service & great products! Will order from again!

Black Diamond Diesel Performance

Exceptional customer service and support. These guys really know their stuff and provide a great product! Thank you!!

– Austin

They knocked it out of the park with the on time delivery, easy to deal with and last but not least, an excellent engine that’s running great.

– Phil Rawlings