ATK Chrysler 408 Stroker Engine 465HP Mid Dress HP46M-MAG

Item #22604

ATK Chrysler 408 Stroker Engine 465HP Mid Dress HP46M-MAG
HP46M-MAG ATK Chrysler 408 Stroker Mid Dress Engine 465HP
* ** 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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Are you looking to build your own muscle car? Then this ATK HP46M-MAG Chrysler 408 Stroker Engine 465HP Mid Dress is the right place to start. Designed to meet the needs of heavyweight vehicles like trucks and high-performance cars, it brings boosted low and mid-range power plus lopey idle.

Engine Specifications:

  • Horsepower: 465
  • Torque: 535 lbs./ft.
  • Block: Seasoned OE Magnum Block
  • Bore/Stroke: 4.040 x 4.000
  • Displacement: 408 C.I.D.
  • Crankshaft: Scat Nodular Iron 4.000" Stroke Internally Balanced
  • Connecting Rods: Scat 4340 Forged I Beam 6.123" ARP 8740 Bolts
  • Pistons: Forged
  • Piston Rings: Moly Rings
  • Compression Ratio: 10.1:1 Compression
  • Camshaft: OE Hyd. Roller
  • Camshaft Specifications: 229/233 @050 .520in/.515ex 110LSA
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Cylinder Heads: Edelbrock Performer RPM 58cc/176cc 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. Center 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


ATK High Performance Chrysler 408 Stroker Magnum 465 HP Stage 2 Long Block Crate Engines


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 Air Gap #7577
• Spark Plugs: Autolite #3923
• Spark Plug Gap: .035"
• Harmonic Balancer/Damper: Professional Products Internally Balanced Weight must be removed #80012
• Flex Plate / Flywheel: Stock Internally Balanced (Not Included)
• Timing: 34-36 Degrees Total
• Water Pump: Standard Volume
• Firing Order: 1 8 4 3 6 5 7 2
• Exhuast: 1 3/4 Headers
• Fuel Pump: Holley 110GPH Mechanical #12-360-11
• Fuel: 91+ Octane
• Ignition: Pro Billet
• Automatic Transmission Stall Converter: 2500+


Recommended Components:

• Carburetor: Quick Fuel 780cfm vacuum secondary electric choke #793-HR-780-VS
• Fuel Pump: Holley Mechanical 110gph #510-12-360-11
• Spark Plugs: Autotile #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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