ATK Ford 331 Stroker Engine 380HP Mid Dress HP14M

Item #22566 Brand:ATK Engines

ATK Ford 331 Stroker Engine 380HP Mid Dress HP14M
ATK HP14M Ford 331 Stroker Engine 380HP
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Take on the streets with this Ford 331 Stroker Engine. Engineered for reliable and top-notch performance, this mid dress engine is equipped with nodular steel crank, forged pistons and aluminum cylinder heads. This dyno proven engines includes distributor, oil pan, valve covers, timing cover, water pump, harmonic balancer and flex plate.

Engine Specifications:

  • Horsepower: 380
  • Torque: 385 lb/ft
  • Block: Seasoned OE Roller Block
  • Bore/Stroke: 4.040 x 3.250
  • Displacement: 331 C.I.D.
  • Crankshaft: Scat Nodular Iron 3.250" Stroke 1 Piece Externally Balanced 28oz.
  • Connecting Rods: Scat 4340 Forged I Beam 5.400 With ARP 8740 Bolts
  • Pistons: Forged Flat Top W Four Valve Reliefs
  • Piston Rings: Moly Rings
  • Compression Ratio: 10.1:1 Compression
  • Camshaft: Hydraulic Roller
  • Camshaft Specifications: 220/224 @050 .512in/.512ex 112LSA
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Cylinder Heads: Dart Pro 1 aluminum 58cc/170cc 2.02/1.60
  • Freeze Plugs: Brass Installed & Sealed
  • Rocker Arms: Billet Aluminum 1.6 Full Roller
  • Oil Galley Plugs: Installed & Sealed
  • Oil Pan: OE 5qt. Front Sump
  • Weight: 375

ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.



Don't forget the engine paint!
Engine Paint


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Contents

ATK High Performance Ford 331 Stroker 380 HP Stage 2 Long Block Crate Engines


Specifications

Engine Information:

• Oil: 10W30
• Oil Filter: Wix or K&N Recommended Per Your Application
• Fuel Delivery: Quick Fuel Carburetor 680cfm #HR-680-VS
• Intake Manifold: Edelbrock Performer RPM Dual Plane #7121
• Spark Plugs: Autolite #3923
• Spark Plug Gap: .035"
• Harmonic Balancer/Damper: Professional Products Externally Balanced 28oz Dual bolt pattern #80006
• Flex Plate / Flywheel: Externally Balanced 164 Tooth
• Timing: 34-36 Degrees Total
• Water Pump: Early RH inlet standard rotation
• Firing Order: 1 3 7 2 6 5 4 8
• Exhuast: 1 5/8 Headers
• Fuel Pump: Holley 110GPH Mechanical #12-289-11
• Fuel: 91+ Octane
• Ignition: Pro Billet with Melonized gear
• Automatic Transmission Stall Converter: 2400-2800

Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work for their application. Some modifications to the vehicle may be required using these and or other aftermarket parts.


Accessories

Recommended Components:

Carburetor: Quick Fuel 680cfm #793-HR-680-VS (vacuum secondary's, electric choke) Fuel Pump: Holley Mechanical 110gph #510-12-289-11 Spark Plugs: Autolite #417-3923 Spark Plug Wires: 8mm


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