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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 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
    ATK HP25 Jeep 4.7 Stroker Engine 205HP
    $3,089.99
  • 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
    ATK HP32C-EFI Chevy 350CI Vortec Engine 350HP
    $4,686.99
  • 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
    ATK HP33 Chevy 383 Vortec Stroker Engine 380HP
    $4,037.99
  • 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
    ATK HP33C Chevy 383 Vortec Stroker Engine 380HP
    $5,098.99
  • 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
    ATK HP33M Chevy 383 Vortec Stroker Engine 375HP
    $4,356.99
  • ATK Chevy 350CI Engine 408HP Base HP34

    ATK Chevy 350CI Engine 408HP Base HP34

    ATK HP34 Chevy 350CI Engine 408HP Base
    $4,234.99
    ATK HP34 Chevy 350CI Engine 408HP Base
    $4,234.99
  • ATK Chevy 350CI Engine 408HP Complete HP34C

    ATK Chevy 350CI Engine 408HP Complete HP34C

    ATK HP34C Chevy 350CI Engine 408HP
    $5,953.99
    ATK HP34C Chevy 350CI Engine 408HP
    $5,953.99
  • 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
    ATK HP34M Chevy 350CI Engine 408HP
    $4,874.99
  • 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
    ATK HP36 Chevy 383 Stroker Engine 430HP
    $4,552.99
  • 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
    ATK HP36C-EFI Chevy 383 Stroker Engine 430HP
    $6,488.99
  • 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
    ATK HP36M Chevy 383 Stroker Engine 430HP
    $5,201.99
  • 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
    HP20M ATK Ford 347 Stroker Mid Dress Engine 410HP
    $6,066.99
  • ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block Engine 58 Tooth -29cc Dished SP36-G4-B

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

    ATK Chevy LQ9 Gen IV 408 Short Block 58 Tooth
    $5,149.99
    ATK Chevy LQ9 Gen IV 408 Short Block 58 Tooth
    $5,149.99
  • ATK Chevy LM-7/LS 347CI Short Block Engine -11cc Dished Pistons 24 Tooth SP76

    ATK Chevy LM-7/LS 347CI Short Block Engine -11cc Dished Pistons 24 Tooth SP76

    ATK Chevy LM-7/LS 347CI Short Block 11cc Dished Coated Skirts
    $2,868.99
    ATK Chevy LM-7/LS 347CI Short Block 11cc Dished Coated Skirts
    $2,868.99
  • ATK Chevy 350CI Engine 375HP Complete HP89C

    ATK Chevy 350CI Engine 375HP Complete HP89C

    HP89C ATK Chevy 350CI Complete Engine 375HP
    $4,779.99
    HP89C ATK Chevy 350CI Complete Engine 375HP
    $4,779.99
  • ATK Chevy 350CI Engine 375HP Complete EFI HP89C-EFI

    ATK Chevy 350CI Engine 375HP Complete EFI HP89C-EFI

    ATK HP89C-EFI Chevy 350CI 375HP Complete Engine Long Block
    $5,252.99
    ATK HP89C-EFI Chevy 350CI 375HP Complete Engine Long Block
    $5,252.99
  • ATK Chevy 350CI Engine 375HP Mid Dress HP89M

    ATK Chevy 350CI Engine 375HP Mid Dress HP89M

    HP89M ATK Chevy 350CI Mid-Dress Engine 375HP
    $3,924.99
    HP89M ATK Chevy 350CI Mid-Dress Engine 375HP
    $3,924.99
  • 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
    HP90 ATK Chevy 383 345HP Marine Stroker Base Engine Long Block
    $3,893.99
  • 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
    HP91 ATK Chevy 350CI 87 Octane Base Engine 345HP
    $3,450.99
  • 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
    HP91C ATK Chevy 350CI 345HP 87 Octane Complete Engine Long Block
    $4,779.99
  • 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
    HP91M ATK Chevy 350CI 87 Octane Mid-Dress Engine 345HP
    $3,924.99
  • 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 New Chevy 350CI Engine 315HP Complete HP92C

    ATK New Chevy 350CI Engine 315HP Complete HP92C

    HP92C ATK New Chevy 350CI 315HP Complete Engine Long Block
    $4,376.99
    HP92C ATK New Chevy 350CI 315HP Complete Engine Long Block
    $4,376.99
  • ATK Chevy 383 Stroker Engine 415HP Complete HP94C-EFI

    ATK Chevy 383 Stroker Engine 415HP Complete HP94C-EFI

    HP94C-EFI ATK Chevy 383 Stroker Complete Engine 415HP
    $6,076.99
    HP94C-EFI ATK Chevy 383 Stroker Complete Engine 415HP
    $6,076.99
  • ATK Chevy 350CI Engine 345HP Base HP98

    ATK Chevy 350CI Engine 345HP Base HP98

    HP98 ATK Chevy 350CI Base Engine 345HP
    $2,780.99
    HP98 ATK Chevy 350CI Base Engine 345HP
    $2,780.99
  • ATK Chevy 350CI Engine 345HP Complete HP98C

    ATK Chevy 350CI Engine 345HP Complete HP98C

    HP98C ATK Chevy 350CI Complete Engine 345HP
    $3,862.99
    HP98C ATK Chevy 350CI Complete Engine 345HP
    $3,862.99
  • ATK Chevy Engine

    ATK Chevy 350CI Engine 345HP Mid Dress HP98M

    ATK HP98M Chevy 350CI Mid-Dress Engine 345HP
    $3,141.99
    ATK HP98M Chevy 350CI Mid-Dress Engine 345HP
    $3,141.99
  • 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
    ATK LQ4-LB-1 GM Gen III 6.0L 370CI Engine Base 550HP
    $6,610.99
  • 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
    LQ9-LB-1 ATK GM Gen IV 6.0L 370CI Engine Base 550HP
    $6,789.99
  • ATK LS/LQ4 6.0L GEN III 600HP Base LS01 Engine

    ATK LS/LQ4 6.0L GEN III 600HP Base LS01 Engine

    LS01 ATK LS/LQ4 6.0L GEN III Base Engine 600HP
    $7,698.99
    LS01 ATK LS/LQ4 6.0L GEN III Base Engine 600HP
    $7,698.99
  • ATK LS 408 Stroker Engine 600HP LQ4 Iron LS01C

    ATK LS 408 Stroker Engine 600HP LQ4 Iron LS01C

    ATK LS01C LS 408 Stroker Engine 600HP
    $9,918.99
    ATK LS01C LS 408 Stroker Engine 600HP
    $9,918.99
  • ATK LS3 415CI 620HP Base LS02 Engine

    ATK LS3 415CI 620HP Base LS02 Engine

    ATK LS02 LS3 415CI 620HP Base
    $8,998.99
    ATK LS02 LS3 415CI 620HP Base
    $8,998.99
  • ATK LS 408 Stroker Engine 620HP LS3 Alum LS02C

    ATK LS 408 Stroker Engine 620HP LS3 Alum LS02C

    ATK LS02C LS 408 Stroker Engine 620HP
    $10,761.99
    ATK LS02C LS 408 Stroker Engine 620HP
    $10,761.99
  • ATK Ford 393 Stroker Short Block -16.5cc Dished SP17 Engine

    ATK Ford 393 Stroker Short Block -16.5cc Dished SP17 Engine

    ATK SP17 Ford 393 Stroker Short Block 16.5cc
    $2,885.99
    ATK SP17 Ford 393 Stroker Short Block 16.5cc
    $2,885.99
  • ATK Ford 408 Stroker Short Block -25.8cc Dished Forged SP21 Engine

    ATK Ford 408 Stroker Short Block -25.8cc Dished Forged SP21 Engine

    ATK SP21 Ford 408 Stroker Short Block 25.8cc
    $3,400.99
    ATK SP21 Ford 408 Stroker Short Block 25.8cc
    $3,400.99
  • ATK Ford 520 Stroker Short Block -36cc Dished Forged SP22 Engine

    ATK Ford 520 Stroker Short Block -36cc Dished Forged SP22 Engine

    ATK SP22 Ford 520 Stroker Short Block -36cc
    $3,924.99
    ATK SP22 Ford 520 Stroker Short Block -36cc
    $3,924.99
  • ATK Ford 408 Stroker Short Block -22cc Dished SP25 Engine

    ATK Ford 408 Stroker Short Block -22cc Dished SP25 Engine

    ATK SP25 Ford 408 Stroker Short Block -22cc
    $2,781.99
    ATK SP25 Ford 408 Stroker Short Block -22cc
    $2,781.99

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