427CI SMALL BLOCK FORD CRATE ENGINE LONG BLOCK

Hot Rod Series - Street Performance

F427-HR-LB-

Need a Drop-in-Ready Solution? We got you covered. You can purchase a Drop-in-Ready engine like this one with a Pulley Kit fully assembled and dyno tuned. Click here to see engine.

Fuel type

Fuel TypePump Gas

Max RPM

Max RPM6,000

Horsepower

Horsepower500 / 520

Best Use

Best UseStreet

Availability: Custom built to order
Pricing: $6,899.00

Customize Your Item

- Horsepower Options -
 * required
- Oil Pan Options -
 * required
- Front Cover Options -
 * required
- Valve Cover Options -
 * required
- Long Block Dyno Testing Required -
 * required
- Block Color Options -
 * required
- Flywheel Options -
 * required
- Starter Options -
 * required
- Select Free T-Shirt Size -
 * required
- Tell us about your vehicle -
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Description

The 427 Ford Small Block Stroker engine is by far our most popular engine combination. We offer several different versions based on the 351 Windsor. The 500 HP version is designed for street driving. Hard acceleration throughout the RPM band can be expected along with a muscle car thump that demands attention.

Our Ford Small Block Crate Engines are an homage to 1969, a year of aggressive modernization at Ford.

Ford’s 302, 351 Windsor, and 351 Cleveland motors were created to meet the needs of intermediate and pony car lines. We took those designs and engineered our Ford Small Block engines as the perfect turn-key option for Mustangs and other classic Ford models. They deliver the coveted 427 cubic inches available in the Windsor and Cleveland platforms for big power in a small package. Our custom Ford Small Blocks are a Prestige Motorsports specialty and our most popular builds.

HOT ROD SERIES

Ready to get serious with your hot rod, cruiser, or daily driver? The engines in our Hot Rod Series will upgrade your ride with a custom-machined factory OEM block, plus a hydraulic roller cam and lifters, forged pistons, a stroker crankshaft, forged steel rods, competition valve job, and an arrangement of top-quality internal components. These street-serious motors are perfect for cruising, car shows, and even a little bracket racing. They’re not intended for boost or nitrous.

NOTE: Some engine listings may show similar items or optional products and are not included in final price.

DYNO



DYNO TESTING

Dyno testing not included in long block price. Here at Prestige Motorsports, our “Dyno Promise” means that we dyno test every engine we build to verify the quality of our work, the integrity of each component, and the reliability of every engine we construct. Then, we deliver the dyno results for your project directly to you, the customer. Hours for dyno testing will be calculated with the purchase of the fuel and ignition group per engine order.

Engines will produce +/- 2% of advertised power at the flywheel. Advertised power levels are achieved using an electric water pump and specific induction and exhaust systems. Power will vary after pulley systems are installed or if changes are made to the induction or exhaust system (e.g. camshaft, cylinder head, compression, intake manifold, exhaust headers, air filters, etc.). Chassis dyno results measure power at the wheels and only calculate flywheel horsepower. Wheel horsepower is affected by a variety of vehicle-specific criteria including driveline design, body and chassis flex, air intake location, etc. Therefore, calculating flywheel horsepower from wheel horsepower is not an accurate representation of actual flywheel horsepower.

WARRANTY

Prestige Motorsports offers a limited warranty on engines for a period of 1 or 3 years with unlimited mileage. Our warranty covers the base engine from the intake manifold to the oil pan. Add-on accessories such as ignition components, fuel delivery systems, pulley kits, and belt-driven components are covered by their manufacturer’s warranty only.

ENGINE WARRANTY OUTLINE

Upon receiving your engine, you are required to register your engine for a warranty. The form is included in the paperwork you receive with the engine. Fill out the form and return in the mail to our physical address, or you may email it to sales@prestigemoto.com.

If you experience any issues or concerns with your engine, you MUST contact us before any work or diagnostics are performed. We will discuss the concern and give you specific directions on the next steps. If we feel the engine needs teardown for further assessment or repair, the customer is responsible for any time and labor costs of preparing the engine for shipping including removal from vehicle and packaging fees. Prestige Motorsports will arrange pick-up of the engine and cover the cost for delivery back to Prestige Motorsports.

Prestige Motorsports will perform a thorough assessment of the engine and determine the root cause of the concern. If the root cause is determined to be a component failure or assembly error, Prestige Motorsports will repair or replace the engine, retest, and deliver it back to the customer at no charge.

If the root cause is determined to be the result of improper use or inflicted by an outside source, customer or otherwise (common examples, not an exhaustive list, of root causes that are not covered under warranty, include overheating, incorrect ignition timing, incorrect air/fuel ratios, use of power-adders, over-revving, and incorrect oil level), the customer will be invoiced for delivery charges incurred by Prestige Motorsports for retrieving the engine, as well as a tear-down and assessment labor time.

Prestige Motorsports will also provide an estimate for parts and labor to repair or replace the engine, including the cost of delivery back to the customer. The customer then has the option to approve the recommended repairs or retrieve the engine in its current state from Prestige Motorsports.

Ultimately the engine will tell the story. Prestige Motorsports keeps detailed records of root cause analysis which may include photos or videos if the customer has questions about the results. However, it is at the sole professional discretion of Prestige Motorsports as to the root cause of failure.

THE PRESTIGE ADVANTAGE

"The Prestige Advantage” is what you get when you buy a custom-built crate engine or "Ultimate Turn-Key Package" from us. With our own in-house machine shop, engine assembly "clean room" and dyno R&D facility, you can rest assured that everything is hand-built, test fitted, installed and dyno tested by industry professionals to insure an easy, straight forward installation when you receive it.

Yes, that’s right...we go above and beyond, like no other company in the business!

Prestige Motorsports can build a custom package to suit your needs and fit your specific build. We not only build the highest quality crate engines, but we also build complete vehicles from the ground up, so we know what works and what doesn’t. You can be confident that when your package arrives, it is what you ordered and will exceed your expectations before, during and after installation! Proudly built right here in the USA!

Be sure to check out our additional packages to help complete your build:

  • Transmission Packages
  • Cooling Packages
  • Fuel Supply Packages
  • Ultimate Turnkey Package

    The Prestige Advantage

  • Shipping Information

    • Item Requires Shipping
    • 500.0 lbs.
    • W38.0000” x H37.0000” x L48.0000”
    • $385.00

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