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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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35 Item(s)

  • 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
    HP631PC ATK Chevy 496 Stroker Complete Engine 600HP
    $10,660.99
  • 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
    HP631P ATK Chevy 496 Stroker Base Engine 600HP
    $8,462.99
  • 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
    HP631PM ATK Chevy 496 Stroker Mid-Dress Engine 600HP
    $9,356.99
  • ATK Chevy 540CI Engine 660+ HP Complete HP42C

    ATK Chevy 540CI Engine 660+ HP Complete HP42C

    ATK HP42C Chevy 540CI Engine 650HP
    $12,565.99
    ATK HP42C Chevy 540CI Engine 650HP
    $12,565.99
  • ATK Ford 408 Stroker Engine 480HP Mid Dress HP81M

    ATK Ford 408 Stroker Engine 480HP Mid Dress HP81M

    ATK HP81M Ford 408 Stroker Engine 480HP Mid Dress
    $7,702.99
    ATK HP81M Ford 408 Stroker Engine 480HP Mid Dress
    $7,702.99
  • ATK Ford 408 Stroker Engine 480HP Complete HP81C

    ATK Ford 408 Stroker Engine 480HP Complete HP81C

    ATK HP81C Ford 408 Stroker Engine 480HP
    $8,775.99
    ATK HP81C Ford 408 Stroker Engine 480HP
    $8,775.99
  • ATK Ford 408 Stroker Engine 480HP Base HP81

    ATK Ford 408 Stroker Engine 480HP Base HP81

    ATK HP81 Ford 408 Stroker Engine 480HP
    $7,148.99
    ATK HP81 Ford 408 Stroker Engine 480HP
    $7,148.99
  • ATK Chevy 350CI Blower Engine 500HP Complete HP38C

    ATK Chevy 350CI Blower Engine 500HP Complete HP38C

    ATK HP38C Chevy 350CI Blower Engine 500HP
    $9,570.99
    ATK HP38C Chevy 350CI Blower Engine 500HP
    $9,570.99
  • 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
  • ATK Chevy 383 Shrt Blk 4Bolt 1PC Forged -16cc Dished SP35 Engine

    ATK Chevy 383 Shrt Blk 4Bolt 1PC Forged -16cc Dished SP35 Engine

    ATK SP35 Chevy 383 Short Block 16cc
    $3,174.99
    ATK SP35 Chevy 383 Short Block 16cc
    $3,174.99
  • ATK Chevy 434CI Short Block Forged Flat Top SP48 Engine

    ATK Chevy 434CI Short Block Forged Flat Top SP48 Engine

    SP48 ATK Chevy 434CI Short Block Forged Flat Top
    $5,004.99
    SP48 ATK Chevy 434CI Short Block Forged Flat Top
    $5,004.99
  • ATK Chevy 383 CI Short Block Forged Piston Flat Top SP52 Engine

    ATK Chevy 383 CI Short Block Forged Piston Flat Top SP52 Engine

    SP52 ATK Chevy 383 CI Short Block Forged Piston Flat Top
    $2,265.99
    SP52 ATK Chevy 383 CI Short Block Forged Piston Flat Top
    $2,265.99
  • ATK Chevy 383 Shrt Blk 4Bolt 1PC Forged Flat Top SP53 Engine

    ATK Chevy 383 Shrt Blk 4Bolt 1PC Forged Flat Top SP53 Engine

    ATK SP53 Chevy 383 Shrt Blk 4Bolt 1PC Forged Flat Top
    $3,244.99
    ATK SP53 Chevy 383 Shrt Blk 4Bolt 1PC Forged Flat Top
    $3,244.99
  • ATK Chrysler 408 Mag Short Block Forged -20.5cc Dished SP57 Engine

    ATK Chrysler 408 Mag Short Block Forged -20.5cc Dished SP57 Engine

    ATK SP57 Chrysler 408 Mag Short Block 20.5cc
    $3,299.99
    ATK SP57 Chrysler 408 Mag Short Block 20.5cc
    $3,299.99
  • ATK Chrysler 408 Mag Short Block -23.5cc Dished SP61 Engine

    ATK Chrysler 408 Mag Short Block -23.5cc Dished SP61 Engine

    ATK SP61 Chrysler 408 Mag Short Block -23.5cc
    $2,549.99
    ATK SP61 Chrysler 408 Mag Short Block -23.5cc
    $2,549.99
  • ATK Chevy LS3 415 Short Block 24 Tooth -10cc Dished SP67 Engine

    ATK Chevy LS3 415 Short Block 24 Tooth -10cc Dished SP67 Engine

    ATK SP67 Chevy LS3 415 Short Block -10cc
    $5,304.99
    ATK SP67 Chevy LS3 415 Short Block -10cc
    $5,304.99
  • ATK Chevy LS3 415 Short Block 24 Tooth -18cc Dished SP68 Engine

    ATK Chevy LS3 415 Short Block 24 Tooth -18cc Dished SP68 Engine

    ATK SP68 Chevy LS3 415 Short Block 24 Tooth -18cc Dished
    $5,304.99
    ATK SP68 Chevy LS3 415 Short Block 24 Tooth -18cc Dished
    $5,304.99
  • ATK Chevy LS3 415 Short Block 24 Tooth Flat Top SP69 Engine

    ATK Chevy LS3 415 Short Block 24 Tooth Flat Top SP69 Engine

    ATK SP69 Chevy LS3 415 Short Block 24 Tooth Flat Top
    $5,304.99
    ATK SP69 Chevy LS3 415 Short Block 24 Tooth Flat Top
    $5,304.99
  • ATK Chevy LS3 415 Short Block 24 Tooth -29cc Dished SP70 Engine

    ATK Chevy LS3 415 Short Block 24 Tooth -29cc Dished SP70 Engine

    ATK SP70 Chevy LS3 415 Short Block 29cc
    $5,304.99
    ATK SP70 Chevy LS3 415 Short Block 29cc
    $5,304.99
  • ATK Chevy LS3 415 Short Block 58 Tooth -10cc Dished SP71

    ATK Chevy LS3 415 Short Block 58 Tooth -10cc Dished SP71

    ATK SP71 Chevy LS3 415 Short Block 58 Tooth -10cc
    $5,163.99
    ATK SP71 Chevy LS3 415 Short Block 58 Tooth -10cc
    $5,163.99
  • ATK Chevy LS3 415 Short Block 58 Tooth -18cc Dished SP72 Engine

    ATK Chevy LS3 415 Short Block 58 Tooth -18cc Dished SP72 Engine

    ATK SP72 Chevy LS3 415 Short Block 58 Tooth -18cc
    $5,304.99
    ATK SP72 Chevy LS3 415 Short Block 58 Tooth -18cc
    $5,304.99
  • ATK Chevy LS3 415 Short Block 58 Tooth Flat Top SP73 Engine

    ATK Chevy LS3 415 Short Block 58 Tooth Flat Top SP73 Engine

    ATK SP73 Chevy LS3 415 Short Block 58 Tooth Flat Top
    $5,304.99
    ATK SP73 Chevy LS3 415 Short Block 58 Tooth Flat Top
    $5,304.99
  • ATK Chevy LS3 415 Short Block 58 Tooth -29cc Dished SP74 Engine

    ATK Chevy LS3 415 Short Block 58 Tooth -29cc Dished SP74 Engine

    ATK SP74 Chevy LS3 415 Short Block -29cc
    $5,304.99
    ATK SP74 Chevy LS3 415 Short Block -29cc
    $5,304.99
  • ATK Chevy LS2 365CI Short Block -3.2cc Flat Top Pistons 58 Tooth SP81 Engine

    ATK Chevy LS2 365CI Short Block -3.2cc Flat Top Pistons 58 Tooth SP81 Engine

    ATK SP81 Chevy LS2 365CI Short Block -3.2cc
    $4,202.99
    ATK SP81 Chevy LS2 365CI Short Block -3.2cc
    $4,202.99
  • ATK Chevy LS2 365CI Short Block -11cc Dished Pistons 58 Tooth SP82 Engine

    ATK Chevy LS2 365CI Short Block -11cc Dished Pistons 58 Tooth SP82 Engine

    ATK SP82 Chevy LS2 365CI Short Block -11cc Dished Pistons
    $4,054.99
    ATK SP82 Chevy LS2 365CI Short Block -11cc Dished Pistons
    $4,054.99
  • ATK Chevy LS2 365CI Short Block -25cc Dished Pistons 58 Tooth SP83 Engine

    ATK Chevy LS2 365CI Short Block -25cc Dished Pistons 58 Tooth SP83 Engine

    ATK SP83 Chevy LS2 365CI Short Block -25cc Dished Pistons
    $4,054.99
    ATK SP83 Chevy LS2 365CI Short Block -25cc Dished Pistons
    $4,054.99
  • ATK Chevy LS2 403CI Stroker Short Block -3.2cc Flat Top Pistons 58 Tooth SP84 Engine

    ATK Chevy LS2 403CI Stroker Short Block -3.2cc Flat Top Pistons 58 Tooth SP84 Engine

    ATK SP84 Chevy LS2 403CI Stroker Short Block -3.2cc Flat Top Pistons
    $4,995.99
    ATK SP84 Chevy LS2 403CI Stroker Short Block -3.2cc Flat Top Pistons
    $4,995.99
  • ATK Chevy LS2 403CI Stroker Short Block -8cc Dished Pistons 58 Tooth SP85 Engine

    ATK Chevy LS2 403CI Stroker Short Block -8cc Dished Pistons 58 Tooth SP85 Engine

    ATK SP85 Chevy LS2 403CI Stroker Short Block -8cc
    $4,937.99
    ATK SP85 Chevy LS2 403CI Stroker Short Block -8cc
    $4,937.99
  • ATK Chevy LS2 403CI Stroker Short Block -15cc Dished Pistons 58 Tooth SP86 Engine

    ATK Chevy LS2 403CI Stroker Short Block -15cc Dished Pistons 58 Tooth SP86 Engine

    ATK SP86 Chevy LS2 403CI Stroker Short Block -15cc
    $4,937.99
    ATK SP86 Chevy LS2 403CI Stroker Short Block -15cc
    $4,937.99
  • ATK Chevy 489/496 Stroker Short Block +20cc Dome SP98 Engine

    ATK Chevy 489/496 Stroker Short Block +20cc Dome SP98 Engine

    ATK SP98 Chevy 489/496 Stroker Short Block +20cc
    $3,736.99
    ATK SP98 Chevy 489/496 Stroker Short Block +20cc
    $3,736.99

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35 Item(s)