ATK Chrysler GEN III Hemi 392CI Stroker Boost/Nitrous Flat Top SP97-B Engine

Item #22745

Made in the USA
ATK Chrysler GEN III Hemi 392CI Stroker Boost/Nitrous Flat Top SP97-B Engine
ATK SP97-B Chrysler GEN III Hemi 392CI Stroker Boost/Nitrous Flat Top
* ** 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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Give a solid and tough foundation to your high-performance engine with this ATK SP97-B Chrysler GEN III Hemi 392CI Stroker Short Block. It features plasmamoly with steel top piston ring for use with engines that run boost or nitrous applications. This short block uses forged parts and ARP studs and bolts for exceptional reliability.

Engine Specification:

  • Block: Seasoned OE Gen III Hemi 2003-2008
  • Bore/Stroke: 3.927 x 4.050
  • Displacement: 392 C.I.D.
  • Crankshaft: Scat 4340 Forged 4.050" Stroke Internally Balanced
  • Connecting Rods: Scat 4340 Forged H Beam 6.125" ARP 8740 Bolts
  • Pistons: Forged -2cc Flat Top
  • Piston Rings: Moly Rings
  • Compression Ratio: 81cc=9.9:1 /85cc=9.6:1/89cc=9.2:1(based off .028" gasket)
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Freeze Plugs: Installed & Sealed
  • Oil Galley Plugs: Installed & Sealed
  • Weight:285

Every great build needs a solid foundation! For that reason, we take the hard work out of the picture by selling short blocks that are ready for you to complete yourself. Our GM Short Blocks are most commonly packaged as the engine block assembled with Pistons, Piston Rings and Crankshaft installed.

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 GEN III Hemi 392CI Stroker Boost Flat Top


Engine Information:

• Head Gaskets: .028" or per application
• Oil: 10W30
• Harmonic Balancer/Damper: Internally Balanced
• Flex Plate / Flywheel: Internally Balanced


Recommended Components:

• Balancer: Internal balance
• Flexplate/Flywheel: Internal balance
• Head Gasket: .045" thickness or per application
• Oil: 5W/20 Non syntheitc for first 3000 miles
• Oil Filter: Wix or K&N per application

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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