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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 LS 408 Boost/Nitrous Short  Block 24 Tooth – 18cc Dished SP38-B Engine

    ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth – 18cc Dished SP38-B Engine

    SP38-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -18cc Dished
    $4,408.99

    Out of stock

    SP38-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -18cc Dished
    $4,408.99

    Out of stock

  • ATK HP79C Ford 302 Complete Engine 300HP

    ATK HP79C Ford 302 Complete Engine 300HP

    Ford 302CI Engine 300HP Front Sump Complete
    $4,562.99

    Out of stock

    Ford 302CI Engine 300HP Front Sump Complete
    $4,562.99

    Out of stock

  • ATK HP79M Ford 302 Mid Dress Engine 300HP

    ATK HP79M Ford 302 Mid Dress Engine 300HP

    HP79M ATK Ford 302 H.P. Mid-Dress Engine Long Block
    $3,718.99

    Out of stock

    HP79M ATK Ford 302 H.P. Mid-Dress Engine Long Block
    $3,718.99

    Out of stock

  • ATK HP09 Ford 351W Base Engine 300HP

    ATK HP09 Ford 351W Base Engine 300HP

    HP09 ATK Ford 351W HP 68-97 H.P. Base Engine Long Block
    $3,182.99

    Out of stock

    HP09 ATK Ford 351W HP 68-97 H.P. Base Engine Long Block
    $3,182.99

    Out of stock

  • ATK HP11C Ford 351W Complete Engine 385HP

    ATK HP11C Ford 351W Complete Engine 385HP

    ATK HP11C Ford 351W Complete Engine 385HP
    $6,056.99

    Out of stock

    ATK HP11C Ford 351W Complete Engine 385HP
    $6,056.99

    Out of stock

  • ATK HP291PC Chevy 350 Complete Engine 325HP

    ATK HP291PC Chevy 350 Complete Engine 325HP

    ATK HP291PC Chevy 350 Complete Engine 325HP
    $3,604.99

    Out of stock

    ATK HP291PC Chevy 350 Complete Engine 325HP
    $3,604.99

    Out of stock

  • ATK HP89 Chevy 350 Base Engine 375HP

    ATK HP89 Chevy 350 Base Engine 375HP

    HP89 ATK Chevrolet 350/ 375HP Engine Long Block
    $3,450.99

    Out of stock

    HP89 ATK Chevrolet 350/ 375HP Engine Long Block
    $3,450.99

    Out of stock

  • ATK HP32M Chevy 350 Mid Dress Engine 350HP

    ATK HP32M Chevy 350 Mid Dress Engine 350HP

    HP32M ATK Chevrolet 350 64-85 H.P. Mid-Dress Engine Long Block
    $3,192.99

    Out of stock

    HP32M ATK Chevrolet 350 64-85 H.P. Mid-Dress Engine Long Block
    $3,192.99

    Out of stock

  • ATK HP94 Chevy 383 Stroker Base Engine 415HP

    ATK HP94 Chevy 383 Stroker Base Engine 415HP

    HP94 ATK Chevrolet 383CI 415HP Street Engine Long Block
    $3,872.99

    Out of stock

    HP94 ATK Chevrolet 383CI 415HP Street Engine Long Block
    $3,872.99

    Out of stock

  • ATK HP94C Chevy 383 Stroker Complete Engine 415HP

    ATK HP94C Chevy 383 Stroker Complete Engine 415HP

    HP94C ATK Chevrolet 383 415HP Street Engine Complete Assembly
    $5,201.99

    Out of stock

    HP94C ATK Chevrolet 383 415HP Street Engine Complete Assembly
    $5,201.99

    Out of stock

  • ATK HP36C Chevy 383 Stroker Complete Engine 435HP

    ATK HP36C Chevy 383 Stroker Complete Engine 435HP

    ATK HP36C Chevy 383 Stroker Complete Engine 435HP
    $5,953.99

    Out of stock

    ATK HP36C Chevy 383 Stroker Complete Engine 435HP
    $5,953.99

    Out of stock

  • ATK HP97 Chevy LM7 5.3L 99-07 Truck Base Engine 385HP

    ATK HP97 Chevy LM7 5.3L 99-07 Truck Base Engine 385HP

    HP97 ATK Chevrolet 5.3 H.P. 385HP Engine Long Block
    $3,254.99

    Out of stock

    HP97 ATK Chevrolet 5.3 H.P. 385HP Engine Long Block
    $3,254.99

    Out of stock

  • ATK HP99F Ford 302 Drop In Engine 68-74 250HP

    ATK HP99F Ford 302 Drop In Engine 68-74 250HP

    HP99F ATK Ford 302 68-74 DROP-IN Engine Complete Assembly
    $3,097.99

    Out of stock

    HP99F ATK Ford 302 68-74 DROP-IN Engine Complete Assembly
    $3,097.99

    Out of stock

  • ATK Ford 351W Engine 300HP Trk Pan Mid Dress HP09M

    ATK Ford 351W Engine 300HP Trk Pan Mid Dress HP09M

    HP09M ATK Ford 351W TRK Pan Mid Dress Engine 300HP
    $4,027.99

    Out of stock

    HP09M ATK Ford 351W TRK Pan Mid Dress Engine 300HP
    $4,027.99

    Out of stock

  • ATK Ford 351W Engine 300HP Trk Pan Complete HP09C

    ATK Ford 351W Engine 300HP Trk Pan Complete HP09C

    HP09C ATK Ford 351W Trk Pan Complete Engine 300HP
    $4,882.99

    Out of stock

    HP09C ATK Ford 351W Trk Pan Complete Engine 300HP
    $4,882.99

    Out of stock

  • ATK Ford 302CI Engine 300HP Fox Pan Complete HP06C

    ATK Ford 302CI Engine 300HP Fox Pan Complete HP06C

    HP06C ATK Ford 302CI Fox Pan Complete Engine 300HP
    $4,514.99

    Out of stock

    HP06C ATK Ford 302CI Fox Pan Complete Engine 300HP
    $4,514.99

    Out of stock

  • ATK Ford 302CI Engine 365HP Fox Pan Mid Dress HP08M

    ATK Ford 302CI Engine 365HP Fox Pan Mid Dress HP08M

    HP08M ATK Ford 302CI Fox Pan Mid Dress Engine 365HP
    $5,088.99

    Out of stock

    HP08M ATK Ford 302CI Fox Pan Mid Dress Engine 365HP
    $5,088.99

    Out of stock

  • ATK Ford 302CI Engine 365HP Fox Pan Complete HP08C

    ATK Ford 302CI Engine 365HP Fox Pan Complete HP08C

    HP08C ATK Ford 302CI 365HP Fox Pan Complete Engine
    $5,953.99

    Out of stock

    HP08C ATK Ford 302CI 365HP Fox Pan Complete Engine
    $5,953.99

    Out of stock

  • ATK Ford 302CI Engine 365HP Fox Pan Base HP08

    ATK Ford 302CI Engine 365HP Fox Pan Base HP08

    HP08 ATK Ford 302CI Fox Pan Base Engine Long Block
    $4,222.99

    Out of stock

    HP08 ATK Ford 302CI Fox Pan Base Engine Long Block
    $4,222.99

    Out of stock

  • ATK Ford 302CI Engine 300HP Fox Pan Mid Dress HP06M

    ATK Ford 302CI Engine 300HP Fox Pan Mid Dress HP06M

    HP06M ATK Ford 302CI Fox Pan Mid Dress Engine 300HP
    $3,458.99

    Out of stock

    HP06M ATK Ford 302CI Fox Pan Mid Dress Engine 300HP
    $3,458.99

    Out of stock

  • ATK Ford 347 Stroker Engine 450HP Frnt Sump Base HP100

    ATK Ford 347 Stroker Engine 450HP Frnt Sump Base HP100

    HP100 ATK Ford 347 Frnt Sump Base Stroker Engine 450HP
    $5,675.99

    Out of stock

    HP100 ATK Ford 347 Frnt Sump Base Stroker Engine 450HP
    $5,675.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 87-95 TBI HP05

    ATK Chevy 383 Stroker Engine 87-95 TBI HP05

    HP05 ATK Chevy 383 320HP Stroker Engine Long Block
    $3,790.99

    Out of stock

    HP05 ATK Chevy 383 320HP Stroker Engine Long Block
    $3,790.99

    Out of stock

  • ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 58 Tooth -29cc Dished SP36-G4-B

    ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 58 Tooth -29cc Dished SP36-G4-B

    ATK Chevy LQ9 Gen IV 408 Short Block 58 Tooth
    $4,624.99

    Out of stock

    ATK Chevy LQ9 Gen IV 408 Short Block 58 Tooth
    $4,624.99

    Out of stock

  • ATK Chevy 502 Marine Engine 515HP Base HP95

    ATK Chevy 502 Marine Engine 515HP Base HP95

    ATK Chevy 502 Marine Engine 515HP
    $8,035.99
    ATK Chevy 502 Marine Engine 515HP
    $8,035.99
  • ATK New Chevy 350 CI Engine 315HP Mid Dress HP92M

    ATK New Chevy 350 CI Engine 315HP Mid Dress HP92M

    ATK New Chevy 350 CI Mid Dress Engine
    $3,552.99
    ATK New Chevy 350 CI Mid Dress Engine
    $3,552.99
  • ATK Ford 347 Stroker Engine 450HP Frnt Sump Complete HP100C

    ATK Ford 347 Stroker Engine 450HP Frnt Sump Complete HP100C

    ATK HP100C Ford 347 Stroker Engine 450HP
    $7,137.99

    Out of stock

    ATK HP100C Ford 347 Stroker Engine 450HP
    $7,137.99

    Out of stock

  • ATK HP21 Ford 408 Stroker Base Engine 430HP

    ATK HP21 Ford 408 Stroker Base Engine 430HP

    ATK Ford 408 Stroker Base Engine
    $5,737.99

    Out of stock

    ATK Ford 408 Stroker Base Engine
    $5,737.99

    Out of stock

  • ATK Ford 302CI Engine 300HP Fox Pan Complete EFI  HP06C-EFI

    ATK Ford 302CI Engine 300HP Fox Pan Complete EFI HP06C-EFI

    ATK Ford 302CI Engine with FITECH Fuel Injection
    $5,098.99

    Out of stock

    ATK Ford 302CI Engine with FITECH Fuel Injection
    $5,098.99

    Out of stock

  • ATK Ford 302CI Engine 300HP Front Sump Complete EFI HP79C-EFI

    ATK Ford 302CI Engine 300HP Front Sump Complete EFI HP79C-EFI

    ATK Ford 302CI Engine with FITECH EFI
    $5,098.99

    Out of stock

    ATK Ford 302CI Engine with FITECH EFI
    $5,098.99

    Out of stock

  • ATK Ford 347 Stroker Engine 450HP Frnt Sump Mid Dress HP100M

    ATK Ford 347 Stroker Engine 450HP Frnt Sump Mid Dress HP100M

    ATK Ford 347 HP100M Stroker Engine 450HP
    $6,509.99

    Out of stock

    ATK Ford 347 HP100M Stroker Engine 450HP
    $6,509.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 460HP Complete HP101C

    ATK Chevy 383 Stroker Engine 460HP Complete HP101C

    ATK HP101C Chevy 383 Stroker Engine 460HP
    $5,922.99

    Out of stock

    ATK HP101C Chevy 383 Stroker Engine 460HP
    $5,922.99

    Out of stock

  • ATK Chevy 496 Stroker Engine 600+ HP Complete HP631PC

    ATK Chevy 496 Stroker Engine 600+ HP Complete HP631PC

    HP631PC ATK Chevy 496 Stroker Complete Engine 600HP
    $10,660.99

    Out of stock

    HP631PC ATK Chevy 496 Stroker Complete Engine 600HP
    $10,660.99

    Out of stock

  • ATK Chevy 496 Stroker Engine 600+ HP Base HP631P

    ATK Chevy 496 Stroker Engine 600+ HP Base HP631P

    HP631P ATK Chevy 496 Stroker Base Engine 600HP
    $8,462.99

    Out of stock

    HP631P ATK Chevy 496 Stroker Base Engine 600HP
    $8,462.99

    Out of stock

  • ATK Chevy 350CI 87-91 Corvette Engine Base HP57

    ATK Chevy 350CI 87-91 Corvette Engine Base HP57

    HP57 ATK Chevy 350CI 87-91 Corvette Base Engine Long Block
    $3,635.99

    Out of stock

    HP57 ATK Chevy 350CI 87-91 Corvette Base Engine Long Block
    $3,635.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 500HP Mid Dress HP55M

    ATK Chevy 383 Stroker Engine 500HP Mid Dress HP55M

    HP55M ATK Chevy 383 500HP Stroker Mid-Dress Engine Long Block
    $6,323.99

    Out of stock

    HP55M ATK Chevy 383 500HP Stroker Mid-Dress Engine Long Block
    $6,323.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 500HP Complete EFI HP55C-EFI

    ATK Chevy 383 Stroker Engine 500HP Complete EFI HP55C-EFI

    HP55C-EFI ATK Chevy 383 Stroker Complete EFI Engine 500HP
    $8,239.99

    Out of stock

    HP55C-EFI ATK Chevy 383 Stroker Complete EFI Engine 500HP
    $8,239.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 500HP Complete HP55C

    ATK Chevy 383 Stroker Engine 500HP Complete HP55C

    HP55C ATK Chevy 383 Stroker Complete Engine 500HP
    $7,642.99

    Out of stock

    HP55C ATK Chevy 383 Stroker Complete Engine 500HP
    $7,642.99

    Out of stock

  • ATK Chevy 496 Stroker Engine 600+ HP Mid Dress HP631PM

    ATK Chevy 496 Stroker Engine 600+ HP Mid Dress HP631PM

    HP631PM ATK Chevy 496 Stroker Mid-Dress Engine 600HP
    $9,356.99

    Out of stock

    HP631PM ATK Chevy 496 Stroker Mid-Dress Engine 600HP
    $9,356.99

    Out of stock

  • ATK Chevy 383 Stroker Engine 500HP Base HP55

    ATK Chevy 383 Stroker Engine 500HP Base HP55

    HP55 ATK Chevy 383 Stroker Base Engine 500HP
    $6,159.99

    Out of stock

    HP55 ATK Chevy 383 Stroker Base Engine 500HP
    $6,159.99

    Out of stock

  • ATK Chrysler 408 Stroker Engine 465HP Base HP46-MAG

    ATK Chrysler 408 Stroker Engine 465HP Base HP46-MAG

    HP46-MAG ATK Chrysler 408 Stroker Base Engine 465HP
    $6,612.99

    Out of stock

    HP46-MAG ATK Chrysler 408 Stroker Base Engine 465HP
    $6,612.99

    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.