ATK Ford 408 Stroker Engine 480HP Mid Dress HP81M

Item #22635

Made in the USA
ATK Ford 408 Stroker Engine 480HP Mid Dress HP81M
ATK HP81M Ford 408 Stroker Engine 480HP Mid Dress
* ** THIS ITEM IS TEMPORARILY OUT OF STOCK *** FREE SHIPPING on ATK Engines. This item ships directly from the manufacturer and is not available for store pickup. Some engines are made-to-order or can be backordered. Delivery can be delayed up to 5 to 6 weeks but typically ship within 2 weeks.
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Details

Build your powerful beast with this ATK HP81M Ford 408 Stroker Engine. Built with carefully handpicked components, this crate engine is highly powerful and reliable for use in street driving and drag racing. This long block engine includes intake manifold, cylinder heads, distributor, oil pan, valve covers, timing cover, water pump, harmonic balancer and flexplate.

Engine Specifications:

  • Horsepower: 480
  • Torque: 500 lb/ft
  • Block: Seasoned OE 351W Roller Block
  • Bore/Stroke: 4.040 x 4.000
  • Displacement: 408 C.I.D.
  • Crankshaft: Scat 4340 Forged 4.000" Stroke 1 Piece Internally Balanced
  • Connecting Rods: Scat 4340 Forged H Beam 6.200" ARP 8740 Bolts
  • Pistons: Forged Dish W Valve Reliefs
  • Piston Rings: Moly Rings
  • Compression Ratio: 10.0:1 Compression
  • Camshaft: Hydraulic Roller
  • Camshaft Specifications: 235/238 @050 .573in/.582ex 112LSA
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Cylinder Heads: Dart Pro 1 Aluminum 58cc/195cc 2.02/1.60
  • Freeze Plugs: Brass Installed & Sealed
  • Rocker Arms: Billet Aluminum 1.6 Full Roller
  • Oil Galley Plugs: Installed & Sealed
  • Oil Pan: Moroso 7qt. 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

Contents

ATK High Performance Ford 408 Stroker 480 HP Street/Strip 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 780cfm #HR-780-VS
• Intake Manifold: Edelbrock Performer RPM Air-Gap Dual Plane #7581
• Spark Plugs: Autolite #3923
• Spark Plug Gap: .035"
• Harmonic Balancer/Damper: Professional Products Internally Balanced Weight Must Be Removed #80006
• Flex Plate / Flywheel: Internally Balanced 164 Tooth
• Timing: 34-36 Degrees Total
• Water Pump: Standard Rotation Right Hand Inlet
• Firing Order: 1 3 7 2 6 5 4 8
• Exhuast: 1 3/4 Headers
• Fuel Pump: Holley 110GPH Mechanical #12-289-11
• Fuel: 91+ Octane
• Ignition: Pro Billet with Melonized gear
• Automatic Transmission Stall Converter: 2500-3200


Accessories

Recommended Components:

• Carburetor: Quick Fuel 780cfm #793-HR-780-VS (vacuum secondary's, electric choke)
• Fuel Pump: Holley Mechanical 110gph #510-12-289-11
• Spark Plugs: Autolite #417-3923
• Spark Plug Wires: 8mm

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.


Shipping Instructions

Shipping is free and lift gate will be provided.


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