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Replacement and Crate Engines

ATK Remanufactured Engines

If you’re restoring a classic car, muscle car or hot rod, it’s a good bet that the motor in it is going to be pretty tired — if it’s still working at all. ATK Engines has been a performance engine builder since 1946 and has an engine combination that will get your project car roaring again. Rebuilding an engine is fun for some, but exhausting and time-consuming for many others. By choosing ATK, you can get everything from a partial build to a drop-in powerplant that’s ready to hit the road or the track.

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  • ATK Chevy 350CI Engine 390HP Complete HP89C

    ATK Chevy 350CI Engine 390HP Complete HP89C

    HP89C ATK Chevy 350CI Complete Engine 390HP
    $4,779.99

    Out of stock

    HP89C ATK Chevy 350CI Complete Engine 390HP
    $4,779.99

    Out of stock

  • ATK Chevy 350CI Engine 390HP Complete EFI HP89C-EFI

    ATK Chevy 350CI Engine 390HP Complete EFI HP89C-EFI

    ATK HP89C-EFI Chevy 350CI 390HP Complete Engine Long Block
    $5,252.99

    Out of stock

    ATK HP89C-EFI Chevy 350CI 390HP Complete Engine Long Block
    $5,252.99

    Out of stock

  • ATK Chevy 350CI Engine 390HP Mid Dress HP89M

    ATK Chevy 350CI Engine 390HP Mid Dress HP89M

    HP89M ATK Chevy 350CI Mid-Dress Engine 390HP
    $3,924.99

    Out of stock

    HP89M ATK Chevy 350CI Mid-Dress Engine 390HP
    $3,924.99

    Out of stock

  • ATK Chevy 383 Marine Stroker Engine 345HP Base HP90

    ATK Chevy 383 Marine Stroker Engine 345HP Base HP90

    HP90 ATK Chevy 383 345HP Marine Stroker Base Engine Long Block
    $3,893.99

    Out of stock

    HP90 ATK Chevy 383 345HP Marine Stroker Base Engine Long Block
    $3,893.99

    Out of stock

  • ATK Chevy 350CI 87 Octane Engine 365HP Base HP91

    ATK Chevy 350CI 87 Octane Engine 365HP Base HP91

    HP91 ATK Chevy 350CI 87 Octane Base Engine 345HP
    $3,450.99

    Out of stock

    HP91 ATK Chevy 350CI 87 Octane Base Engine 345HP
    $3,450.99

    Out of stock

  • ATK Chevy 350CI 87 Octane Engine 365HP Complete HP91C

    ATK Chevy 350CI 87 Octane Engine 365HP Complete HP91C

    HP91C ATK Chevy 350CI 345HP 87 Octane Complete Engine Long Block
    $4,779.99

    Out of stock

    HP91C ATK Chevy 350CI 345HP 87 Octane Complete Engine Long Block
    $4,779.99

    Out of stock

  • ATK Chevy 350CI 87 Octane Engine 365HP Mid Dress HP91M

    ATK Chevy 350CI 87 Octane Engine 365HP Mid Dress HP91M

    HP91M ATK Chevy 350CI 87 Octane Mid-Dress Engine 345HP
    $3,924.99

    Out of stock

    HP91M ATK Chevy 350CI 87 Octane Mid-Dress Engine 345HP
    $3,924.99

    Out of stock

  • ATK New Chevy 350CI Engine 315HP Base HP92

    ATK New Chevy 350CI Engine 315HP Base HP92

    HP92 ATK New Chevy 350CI Base Engine 315HP
    $3,140.99
    HP92 ATK New Chevy 350CI Base Engine 315HP
    $3,140.99
  • ATK Chevy 383 Stroker Engine 420HP Complete HP94C-EFI

    ATK Chevy 383 Stroker Engine 420HP Complete HP94C-EFI

    HP94C-EFI ATK Chevy 383 Stroker Complete Engine 420HP
    $6,076.99

    Out of stock

    HP94C-EFI ATK Chevy 383 Stroker Complete Engine 420HP
    $6,076.99

    Out of stock

  • ATK Chevy 350CI Engine 345HP Base HP98

    ATK Chevy 350CI Engine 345HP Base HP98

    HP98 ATK Chevy 350CI Base Engine 345HP
    $2,780.99

    Out of stock

    HP98 ATK Chevy 350CI Base Engine 345HP
    $2,780.99

    Out of stock

  • ATK Chevy Engine

    ATK Chevy 350CI Engine 345HP Mid Dress HP98M

    ATK HP98M Chevy 350CI Mid-Dress Engine 345HP
    $3,141.99

    Out of stock

    ATK HP98M Chevy 350CI Mid-Dress Engine 345HP
    $3,141.99

    Out of stock

  • ATK GM LM7 347CI 500HP Base LM7-LB-2 Engine

    ATK GM LM7 347CI 500HP Base LM7-LB-2 Engine

    ATK LM7-LB-2 GM LM7 347CI Base Engine 500HP
    $6,699.99
    ATK LM7-LB-2 GM LM7 347CI Base Engine 500HP
    $6,699.99
  • ATK GM LM7 383 Stroker 515+ HP Base LM7-LB-3 Engine

    ATK GM LM7 383 Stroker 515+ HP Base LM7-LB-3 Engine

    ATK LM7-LB-3 GM LM7 383 Stroker Base Engine 515HP
    $6,695.99
    ATK LM7-LB-3 GM LM7 383 Stroker Base Engine 515HP
    $6,695.99
  • ATK GM LM7 383 Stroker 540+ HP Base LM7-LB-4 Engine

    ATK GM LM7 383 Stroker 540+ HP Base LM7-LB-4 Engine

    ATK LM7-LB-4 GM LM7 383 Stroker Base Engine 540HP
    $7,099.99
    ATK LM7-LB-4 GM LM7 383 Stroker Base Engine 540HP
    $7,099.99
  • ATK GM Gen III 6.0L 370CI 550HP Base LQ4-LB-1 Engine

    ATK GM Gen III 6.0L 370CI 550HP Base LQ4-LB-1 Engine

    ATK LQ4-LB-1 GM Gen III 6.0L 370CI Engine Base 550HP
    $6,610.99

    Out of stock

    ATK LQ4-LB-1 GM Gen III 6.0L 370CI Engine Base 550HP
    $6,610.99

    Out of stock

  • ATK GM Gen IV 6.0L 370CI 550HP Base LQ9-LB-1 Engine

    ATK GM Gen IV 6.0L 370CI 550HP Base LQ9-LB-1 Engine

    LQ9-LB-1 ATK GM Gen IV 6.0L 370CI Engine Base 550HP
    $6,789.99

    Out of stock

    LQ9-LB-1 ATK GM Gen IV 6.0L 370CI Engine Base 550HP
    $6,789.99

    Out of stock

  • ATK Chevy 489/496 Stroker Short Block +20cc Dome SP41-1P Engine

    ATK Chevy 489/496 Stroker Short Block +20cc Dome SP41-1P Engine

    SP41-1P ATK Chevy 489/496 Stroker Short Block +20cc Dome
    $3,927.99

    Out of stock

    SP41-1P ATK Chevy 489/496 Stroker Short Block +20cc Dome
    $3,927.99

    Out of stock

  • ATK Chrysler GEN III Hemi 392CI Stroker Flat Top SP97 Engine

    ATK Chrysler GEN III Hemi 392CI Stroker Flat Top SP97 Engine

    ATK SP97 Chrysler GEN III Hemi 392CI Stroker Flat Top
    $4,311.99
    ATK SP97 Chrysler GEN III Hemi 392CI Stroker Flat Top
    $4,311.99
  • ATK Chrysler GEN III Hemi 392CI Stroker Boost/Nitrous Flat Top SP97-B Engine

    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
    $4,536.99
    ATK SP97-B Chrysler GEN III Hemi 392CI Stroker Boost/Nitrous Flat Top
    $4,536.99
  • ATK Ford 347 Stroker Engine 410HP Fox Pan Mid Dress HP20M

    ATK Ford 347 Stroker Engine 410HP Fox Pan Mid Dress HP20M

    HP20M ATK Ford 347 Stroker Mid Dress Engine 410HP
    $6,066.99

    Out of stock

    HP20M ATK Ford 347 Stroker Mid Dress Engine 410HP
    $6,066.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 435HP Mid Dress HP36M

    ATK Chevy 383 Stroker Engine 435HP Mid Dress HP36M

    ATK HP36M Chevy 383 Stroker Engine 430HP
    $5,201.99

    Out of stock

    ATK HP36M Chevy 383 Stroker Engine 430HP
    $5,201.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 435HP Complete EFI HP36C-EFI

    ATK Chevy 383 Stroker Engine 435HP Complete EFI HP36C-EFI

    ATK HP36C-EFI Chevy 383 Stroker Engine 430HP
    $6,488.99

    Out of stock

    ATK HP36C-EFI Chevy 383 Stroker Engine 430HP
    $6,488.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 435HP Base HP36

    ATK Chevy 383 Stroker Engine 435HP Base HP36

    ATK HP36 Chevy 383 Stroker Engine 430HP
    $4,552.99

    Out of stock

    ATK HP36 Chevy 383 Stroker Engine 430HP
    $4,552.99

    Out of stock

  • ATK Chevy 350CI Engine 408HP Mid Dress HP34M

    ATK Chevy 350CI Engine 408HP Mid Dress HP34M

    ATK HP34M Chevy 350CI Engine 408HP
    $4,874.99

    Out of stock

    ATK HP34M Chevy 350CI Engine 408HP
    $4,874.99

    Out of stock

  • ATK Chevy 350CI Engine 408HP Complete HP34C

    ATK Chevy 350CI Engine 408HP Complete HP34C

    ATK HP34C Chevy 350CI Engine 408HP
    $5,953.99

    Out of stock

    ATK HP34C Chevy 350CI Engine 408HP
    $5,953.99

    Out of stock

  • ATK Chevy 350CI Engine 408HP Base HP34

    ATK Chevy 350CI Engine 408HP Base HP34

    ATK HP34 Chevy 350CI Engine 408HP Base
    $4,234.99

    Out of stock

    ATK HP34 Chevy 350CI Engine 408HP Base
    $4,234.99

    Out of stock

  • ATK Chevy 383 Vortec Stroker Engine 380HP Mid Dress HP33M

    ATK Chevy 383 Vortec Stroker Engine 380HP Mid Dress HP33M

    ATK HP33M Chevy 383 Vortec Stroker Engine 375HP
    $4,356.99

    Out of stock

    ATK HP33M Chevy 383 Vortec Stroker Engine 375HP
    $4,356.99

    Out of stock

  • ATK Chevy 383 Vortec Stroker Engine 380HP Complete HP33C

    ATK Chevy 383 Vortec Stroker Engine 380HP Complete HP33C

    ATK HP33C Chevy 383 Vortec Stroker Engine 380HP
    $5,098.99

    Out of stock

    ATK HP33C Chevy 383 Vortec Stroker Engine 380HP
    $5,098.99

    Out of stock

  • ATK Chevy 383 Vortec Stroker Engine 380HP Base HP33

    ATK Chevy 383 Vortec Stroker Engine 380HP Base HP33

    ATK HP33 Chevy 383 Vortec Stroker Engine 380HP
    $4,037.99

    Out of stock

    ATK HP33 Chevy 383 Vortec Stroker Engine 380HP
    $4,037.99

    Out of stock

  • ATK Chevy 350CI Vortec Engine 350HP Complete EFI HP32C-EFI

    ATK Chevy 350CI Vortec Engine 350HP Complete EFI HP32C-EFI

    ATK HP32C-EFI Chevy 350CI Vortec Engine 350HP
    $4,686.99

    Out of stock

    ATK HP32C-EFI Chevy 350CI Vortec Engine 350HP
    $4,686.99

    Out of stock

  • ATK Jeep 4.7 Stroker Engine 205HP 1987-1990 Base HP25

    ATK Jeep 4.7 Stroker Engine 205HP 1987-1990 Base HP25

    ATK HP25 Jeep 4.7 Stroker Engine 205HP
    $3,089.99

    Out of stock

    ATK HP25 Jeep 4.7 Stroker Engine 205HP
    $3,089.99

    Out of stock

  • ATK Ford 408 Stroker Engine 430HP Mid Dress HP21M

    ATK Ford 408 Stroker Engine 430HP Mid Dress HP21M

    HP21M ATK Ford 408 Stroker Mid Dress Engine 430HP
    $6,378.99

    Out of stock

    HP21M ATK Ford 408 Stroker Mid Dress Engine 430HP
    $6,378.99

    Out of stock

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

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

    HP21C-EFI ATK Ford 408 Stroker Complete EFI Engine 430HP
    $8,183.99

    Out of stock

    HP21C-EFI ATK Ford 408 Stroker Complete EFI Engine 430HP
    $8,183.99

    Out of stock

  • ATK Ford 408 Stroker Engine 430HP Complete HP21C

    ATK Ford 408 Stroker Engine 430HP Complete HP21C

    HP21C ATK Ford 408 Stroker Complete Engine 430HP
    $7,580.99

    Out of stock

    HP21C ATK Ford 408 Stroker Complete Engine 430HP
    $7,580.99

    Out of stock

  • ATK Ford 347 Stroker Engine 410HP Fox Pan Complete EFI HP20C-EFI

    ATK Ford 347 Stroker Engine 410HP Fox Pan Complete EFI HP20C-EFI

    ATK HP20C-EFI Ford 347 Stroker Engine 410HP
    $7,415.99

    Out of stock

    ATK HP20C-EFI Ford 347 Stroker Engine 410HP
    $7,415.99

    Out of stock

  • ATK Ford 331 Stroker Engine 380HP Mid Dress HP14M

    ATK Ford 331 Stroker Engine 380HP Mid Dress HP14M

    ATK HP14M Ford 331 Stroker Engine 380HP
    $5,679.99

    Out of stock

    ATK HP14M Ford 331 Stroker Engine 380HP
    $5,679.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 460HP Mid Dress HP101M

    ATK Chevy 383 Stroker Engine 460HP Mid Dress HP101M

    ATK HP101M Chevy 383 Stroker Engine 460HP
    $5,149.99

    Out of stock

    ATK HP101M Chevy 383 Stroker Engine 460HP
    $5,149.99

    Out of stock

  • ATK Ford 351W Engine 385HP Base HP11

    ATK Ford 351W Engine 385HP Base HP11

    ATK HP11 Ford 351W Engine 385HP
    $4,119.99

    Out of stock

    ATK HP11 Ford 351W Engine 385HP
    $4,119.99

    Out of stock

  • ATK Ford 351W Engine 390HP Complete EFI HP11C-EFI

    ATK Ford 351W Engine 390HP Complete EFI HP11C-EFI

    ATK Ford HP11C-EFI 351W Engine 390HP
    $6,694.99

    Out of stock

    ATK Ford HP11C-EFI 351W Engine 390HP
    $6,694.99

    Out of stock

  • ATK Ford 351W Engine 385HP Mid Dress HP11M

    ATK Ford 351W Engine 385HP Mid Dress HP11M

    ATK HP11M Ford 351W Engine 385HP
    $4,939.99

    Out of stock

    ATK HP11M Ford 351W Engine 385HP
    $4,939.99

    Out of stock

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ATK Remanufactured Engines

If you’re restoring a classic car, muscle car or hot rod, it’s a good bet that the motor in it is going to be pretty tired — if it’s still working at all. ATK Engines has been a performance engine builder since 1946 and has an engine combination that will get your project car roaring again. Rebuilding an engine is fun for some, but exhausting and time-consuming for many others. By choosing ATK, you can get everything from a partial build to a drop-in powerplant that’s ready to hit the road or the track.

ATK Remanufactured Engines

If you’re restoring a classic car, muscle car or hot rod, it’s a good bet that the motor in it is going to be pretty tired — if it’s still working at all. ATK Engines has been a performance engine builder since 1946 and has an engine combination that will get your project car roaring again. Rebuilding an engine is fun for some, but exhausting and time-consuming for many others. By choosing ATK, you can get everything from a partial build to a drop-in powerplant that’s ready to hit the road or the track.


High-Performance Classic Car Powerplants

Order your new performance ATK engine from Eastwood and do the job right when it comes to power. Engines are available in three stages depending on your needs and budget. Their short block engine builds can upgrade your existing block or serve as the foundation for a new build. They contain the part of the cylinder block that sits between the head gasket and oil pan. A stage 2 long block ATK engine contains the full block along with the crankshaft, cylinder head and valve train. If you really just want to drop it in and drop the hammer, ATK stage 3 engines come complete right down to the spark plugs.


Fully Warrantied Engines for Restorations

ATK builds GM, Ford and Chrysler engines for all sorts of muscle cars. You can get everything from the Ford 302 HP79C to the Chevy 350 87-95 to fit your vehicle’s factory spec. Every remanufactured engine is fully disassembled, rebuilt and tested to make sure it performs as well as or better than the original factory specs. ATK was also the first builder to offer a warranty on part with that of new engines. Every ATK engine from Eastwood is guaranteed for 24 months with no mileage limit! We also provide free U.S. shipping on most ATK powerplants along with lifetime technical support from our DIY experts.