HP11C High Performance Crate Engine Small Block Ford 351W / 390HP / 420TQ
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ATK ENGINESPART NUMBER: 059-HP11C

HP11C High Performance Crate Engine Small Block Ford 351W / 390HP / 420TQ

$7,37900
Core Charge: $55000
Truck Freight
ShippingShips on 11/06/2026
Lowest PriceLowest Price Guarantee

Complete Engine
High Performance Crate Engine
  • Small Block Ford 351W
  • 390HP / 420TQ
  • Complete Engine Includes:
    • Mid Dress Engine Build
    • Fuel Pump
    • Carburetor
    • Spark Plug Wires
    • Spark Plugs

      ATK Core Return Process
      JEGS and ATK appreciate your business and want to ensure that your core return is as smooth as possible.

      Please CLICK HERE for ATK Core Return Process

      NOTE:

      • Core return can be any Small Block Ford 351W engine

      Engine Specifications

      This 351W has great street manners, but more than enought power to make you smile.

      • Horsepower: 390 hp
      • Torque: 420 lb/ft

      Block Information:

      • Seasoned OE roller block 
      • Bore/Stroke: 4.040" x 3.500"
      • Displacement: 351ci

      Rotating Assembly:

      • Crankshaft: OE Cast 1 piece seal
      • Balance: 28oz external balance
      • Rods: OE steel rod 5.955" stock bolts
      • Compression Ratio: 9.8:1
      • Pistons: Hypereutectic
      • Rings: Moly

      Camshaft Specs:

      • Camshaft: Hydraulic roller
      • Cam Duration @ .050": Intake 220 / Exhaust 224
      • Cam Lift: Intake .512" / Exhaust .512"
      • Lobe Separation Angle: 112lsa
      • Timing Chain: Double roller

      Cylinder Head Information:

      • Cylinder Heads: Dart Pro 1 Aluminum
      • Combustion Chamber: 58cc
      • Intake Runner Size: 170cc
      • Valve Size: 2.02" Intake / 1.60" Exhaust
      • Rocker Arms: Aluminum roller rockers 1.6 ratio

      Oil Pan Information:

        • Oil Pan: Front sump
        • Oil Pump: Melling high volume

      Recommended Components

          • Exhaust: 1-5/8" Headers
          • Firing Order: 13726548
          • Octane: 91+
          • Oil: 10W30 (Conventional / Non Synthetic)
          • Oil Filter: Wix or K&N
          • Spark Plug Gap: .035"
          • Stall Converter: 2200-2500
          • Timing: 34-36 Degrees (Vacuum port plugged on carburetor)
          • Balancer: External 28oz
          • Carburetor: Quick Fuel 680cfm vacuum secondary electric choke #793-HR-680-VS
          • Distributor: Pro Billet MSD Ready to Run (Requires melonite or steel gear) 
          • Flexplate/Flywheel: External 28oz
          • Intake Manifold: Weiand Stealth dual plane #925-8023WND
          • Fuel Pump: Holley Mechanical 110gph #510-12-289-11 
          • Spark Plugs: Autolite #417-3923
          • Spark Plug Wires: 8mm
          • Water Pump: Early model RH inlet standard rotation

       Disclaimer: The parts listed are ATK's recommendations of parts to be used to obtain the power figures listed. Power figures can vary based on parts used by the end user. Some modifications to the vehicle may be required using these and or other aftermarket parts.

      Engine Break-In Procedure

      Use or break-in oil or conventional (non-synthetic) 10w30 oil with zinc additive for the first 500 miles of operation.  Do not drive for long periods at any single speed, always vary your speed. Do not tow a trailer or put other heavy loads on the vehicle. It is best to avoid long periods of idling during this period. Check the engine oil and coolant levels daily. 

      Engines with flat tappet hydraulic cams only - Run the engine between 2,000 and 2,500 RPM's, with no-load on the engine for the first 30 minutes. Let the engine cool down completely and repeat process 2-3 more times. Do not idle the engine for any extended period at this time, this is critical to break in the camshaft.

      At 500 Miles change the engine oil and filter using conventional (non-synthetic) oil with a zinc additive. Check fuel and ignition settings, adjust valves (where applicable).  Drive the next 500 miles normally, without high RPM's (below 5000 RPM), hard use, or extended periods of high loading or long periods of idling.

      Change the oil and oil filter again at 1,000 miles. Continue using conventional (non-synthetic) oils and zinc additive, until about 4,000 miles. At that point, you may run a quality 10w30 synthetic oil if you choose. Use of oil with zinc or a zinc additive for the life of your engine is recommended. 

       

      Emissions Note:

      This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

      CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

      Please CLICK HERE for ATK Warranty

    • In 2007, ATK launched a High Performance Division with one of the finest engine shops in the country. By reverse engineering all of their engines, they are able to eliminate any OEM deficiencies. This makes an ATK built crate engine have a superior design over the original engine by incorporating better components when needed. These quality built engines are offered in three different stages for ease of finishing an engine swap. ATK HP engines feature a 24 month/unlimited mile warranty.

      Show More

      Take your Ford performance build to the next level with the ATK HP Crate Engines Small Block Ford 351W. Offering 390 horsepower and 420 lb-ft of torque, this high-performance crate engine is perfect for enthusiasts looking to boost their vehicle's power, reliability, and overall driving experience. Whether you're restoring a classic, building a custom project, or upgrading your current setup, the 351 Windsor crate engine provides the ideal balance of strength and performance.

      With 351W crate engine precision and durability, this engine is designed for both street and track applications. It combines high-quality components with expert craftsmanship, ensuring consistent, reliable performance. Whether you're looking to enhance your daily driver or need a powerful engine for racing, this crate engine is built to handle the demands of a performance-driven lifestyle.

      For those seeking a Ford 351 crate engine, the ATK HP 351W is engineered to deliver the kind of power you can feel. From its rugged construction to its balanced performance, this engine offers an excellent starting point for any enthusiast looking to make a serious upgrade.

      The ATK HP Small Block Ford 351W crate engine is not just about power; it's about building an engine that will last. Maximize your vehicle's potential with this reliable and high-performance engine, and experience the thrill of owning a true Ford powerhouse.

      The ATK HP Crate Engines Small Block Ford 351W / 390HP / 420TQ lineup delivers classic Windsor performance in a professionally assembled, dyno-tested package built for serious enthusiasts. Designed around the legendary 351W platform, these high-performance crate engines produce a balanced 390 horsepower and 420 lb-ft of torque—making them an ideal upgrade for classic Ford muscle cars, street trucks, and restoration projects. If you’re looking for a reliable small block Ford crate engine with proven output and street-ready drivability, this product group offers the strength and precision your build demands.

      The 351 Windsor platform is known for its durability, strong bottom-end architecture, and excellent airflow potential. ATK enhances these traits with carefully matched internal components and modern machining standards to ensure consistent performance and long-term reliability.

      Performance Benefits & Key Features

      ATK HP 351W crate engines are engineered to provide broad torque delivery and responsive acceleration, making them well-suited for street performance and weekend track use. With 390HP and 420TQ on tap, these engines deliver strong mid-range power and dependable low-end torque capacity—ideal for heavier vehicles or aggressive gearing setups.

      Performance builders often prioritize specifications such as cast iron block strength, upgraded cylinder heads for improved airflow, balanced rotating assemblies, and optimized camshaft profiles. These elements work together to enhance combustion efficiency and throttle response while maintaining stable idle quality for street use. The result is a high-horsepower crate engine that offers both muscle and drivability.

      This engine combination is ideal for classic Mustang builds, restomod projects, street rods, and performance-oriented Ford trucks. It also provides ample torque for light towing applications when properly configured. Whether you’re replacing a tired original motor or building a fresh performance setup, the 351W platform remains a versatile and proven foundation.

      Fitment, Compatibility & Applications

      The ATK HP Crate Engines Small Block Ford 351W / 390HP / 420TQ are designed for Ford Windsor compatibility, making them a direct fit for vehicles originally equipped with 351W engines. Popular applications include Ford Mustang, Fairlane, Torino, and F-Series trucks configured for Windsor small block installation.

      Thanks to widespread aftermarket support, these engines integrate seamlessly with compatible intake manifolds, ignition systems, and transmission options. Builders appreciate the straightforward fitment and flexibility to tailor supporting components to specific performance goals.

      When you’re ready to upgrade your Ford build with dependable Windsor power, explore the ATK HP 351W crate engine options at JEGS and choose a performance foundation built for enthusiasts who demand strength, precision, and proven results.

    Part TypeEngine
    Product LineATK HP Crate Engines Small Block Ford 351W / 390HP / 420TQ
    BrandATK ENGINES
    Package Height29.0
    Package Width37.0
    Package Length39.0
    Weight500.0 PG
    Part CategoryPerformance Parts
    Engine TypeHigh-Performance Crate Engine
    Cylinder Head MaterialAluminum
    Engine Block MaterialCast iron
    QuantitySold individually
    Part FitmentSemi Universal
    Engine Displacement351 ci.
    Engine Make/SizeFord Small Block
    Vendor Part NumberHP11C
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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