ATK Ford 408 Stroker Engine 430HP Complete EFI HP21C-EFI

Item #22579 Brand:ATK Engines

Made in the USA
ATK Ford 408 Stroker Engine 430HP Complete EFI HP21C-EFI
HP21C-EFI ATK Ford 408 Stroker Complete EFI Engine 430HP
* ** 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.
Free Shipping on this item


This HP21C-EFI ATK Ford 408 Stroker Engine 430HP Complete EFI combines good-old power and modern technological innovation. It offers huge 430 horsepower and impressive 500 torque, while maintaining optimal vacuum for power brakes. This crate engine is supported by advanced FiTech Self-Learning EFI systems to optimize fuel efficiency for ideal performance.

Engine Specifications:

  • Horsepower: 430
  • Torque: 500 lbs./ft.
  • Block: Seasoned OE Roller Block
  • Bore/Stroke: 4.040 x 4.000
  • Displacement: 408 C.I.D.
  • Crankshaft: Scat Nodular Iron 4.000" Stroke 1 Piece Internally Balanced
  • Connecting Rods: Scat 4340 Forged I 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: 220/224 @050 .512in/.512ex 112LSA
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Cylinder Heads: Dart Pro 1 aluminum 58cc/170cc
  • 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: 430

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


ATK High Performance Ford 408 Stroker 430 HP Stage 3 Long Block Crate Engines with EFI


Engine Information:

•Oil: 10W30
•Oil Filter: Wix or K&N Recommended Per Your Application
•Fuel Delivery: FITECH GO EFI 600HP TBI
•Intake Manifold: Edelbrock Performer RPM Dual Plane #7181
•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 5/8 Headers
•Fuel Pump: FITECH Inline Electric Fuel Pump Kit, Command Center or Custom Intank setup (FUEL SYSTEM NOT PROVIDED)
•Fuel: 91+ Octane
•Ignition: Pro Billet with Melonized gear (must run ignition control box)
•Automatic Transmission Stall Converter: 2000-250

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.

Eastwood Offers Free Lifetime Technical Support

Click here for product SDS information

Attention California Residents - Proposition 65

Proposition 65 Warning WARNING - Cancer and Reproductive Harm -


Customer Reviews

Questions & Answers