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Base, Short and Long Block Chevy and GM Engines from ATK

Base, Long and Short Block Chevy and GM Engines from ATK

Every great build needs a solid foundation and ATK takes the hard work out of the picture by offering long, short and base 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. Our Base Engine is designed for those that may have their own component parts already and who also are interested in completing out the build themselves. A GM base engine typically consists of the following: Short Block, Camshaft, Timing set, Cylinder heads, Valve covers, Timing cover, oil pan, oil pump & pick up tube.

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  • ATK Chevy LS 408 Short Block 24 Tooth -18cc Dished SP38 Engine

    ATK Chevy LS 408 Short Block 24 Tooth -18cc Dished SP38 Engine

    SP38 ATK Chevy LS 408 Short Block 24 Tooth -18cc Dished
    $3,958.88
    SP38 ATK Chevy LS 408 Short Block 24 Tooth -18cc Dished
    $3,958.88
  • 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
    $4,887.50
    ATK SP85 Chevy LS2 403CI Stroker Short Block -8cc
    $4,887.50
  • ATK Chevy LS 408 Short Block 58 Tooth Flat Top SP32 Engine

    ATK Chevy LS 408 Short Block 58 Tooth Flat Top SP32 Engine

    ATK SP32 Chevy LS 408 Short Block 58 Tooth Flat Top
    $3,958.88
    ATK SP32 Chevy LS 408 Short Block 58 Tooth Flat Top
    $3,958.88
  • 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
    $5,376.25
    ATK SP72 Chevy LS3 415 Short Block 58 Tooth -18cc
    $5,376.25
  • ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -29cc Dished SP40-G4 Engine

    ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -29cc Dished SP40-G4 Engine

    SP40-G4 ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -29cc Dished
    $4,887.50
    SP40-G4 ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -29cc Dished
    $4,887.50
  • 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
    $6,881.60
    ATK LQ4-LB-1 GM Gen III 6.0L 370CI Engine Base 550HP
    $6,881.60
  • ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished SP37-G4-B Engine

    ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished SP37-G4-B Engine

    SP37-G4-B ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished
    $5,376.25
    SP37-G4-B ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished
    $5,376.25
  • 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
    $4,887.50
    ATK SP84 Chevy LS2 403CI Stroker Short Block -3.2cc Flat Top Pistons
    $4,887.50
  • ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 58 Tooth -18cc Dished SP31-G4-B Engine

    ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 58 Tooth -18cc Dished SP31-G4-B Engine

    ATK SP31-G4-B Chevy LQ9 Gen IV 408 Short Block 18cc
    $5,376.25
    ATK SP31-G4-B Chevy LQ9 Gen IV 408 Short Block 18cc
    $5,376.25
  • 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
    $5,376.25
    ATK SP71 Chevy LS3 415 Short Block 58 Tooth -10cc
    $5,376.25
  • ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -29cc Dished SP40-B Engine

    ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -29cc Dished SP40-B Engine

    SP40-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -29cc Dished
    $4,398.75
    SP40-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -29cc Dished
    $4,398.75
  • 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
    $7,081.99
    ATK LM7-LB-4 GM LM7 383 Stroker Base Engine 540HP
    $7,081.99
  • ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -10cc Dished SP37-G4 Engine

    ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -10cc Dished SP37-G4 Engine

    SP37-G4 ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -10cc Dished
    $4,887.50
    SP37-G4 ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth -10cc Dished
    $4,887.50
  • 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
    $4,071.29
    ATK SP83 Chevy LS2 365CI Short Block -25cc Dished Pistons
    $4,071.29
  • ATK Chevy LQ9 Gen IV 408 Stroker Short Block 58 Tooth -18cc Dished SP31-G4 Engine

    ATK Chevy LQ9 Gen IV 408 Stroker Short Block 58 Tooth -18cc Dished SP31-G4 Engine

    ATK SP31-G4 Chevy LQ9 Gen IV 408 Stroker Short Block 18cc
    $4,887.50
    ATK SP31-G4 Chevy LQ9 Gen IV 408 Stroker Short Block 18cc
    $4,887.50
  • 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
    $5,376.25
    ATK SP70 Chevy LS3 415 Short Block 29cc
    $5,376.25
  • 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
    $7,081.99
    ATK LM7-LB-3 GM LM7 383 Stroker Base Engine 515HP
    $7,081.99
  • ATK Chevy LS 408 Short Block 24 Tooth -29cc Dished SP40 Engine

    ATK Chevy LS 408 Short Block 24 Tooth -29cc Dished SP40 Engine

    SP40 ATK Chevy LS 408 Short Block 24 Tooth -29cc Dished
    $3,958.88
    SP40 ATK Chevy LS 408 Short Block 24 Tooth -29cc Dished
    $3,958.88
  • ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished SP37-B Engine

    ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished SP37-B Engine

    SP37-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished
    $4,398.75
    SP37-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth -10cc Dished
    $4,398.75
  • 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
    $4,071.29
    ATK SP82 Chevy LS2 365CI Short Block -11cc Dished Pistons
    $4,071.29
  • ATK Chevy LS 408 Boost/Nitrous Short Block 58 Tooth -18cc Dished SP31-B Engine

    ATK Chevy LS 408 Boost/Nitrous Short Block 58 Tooth -18cc Dished SP31-B Engine

    ATK SP31-B Chevy LS 408 Boost/Nitrous Short Block
    $4,398.75
    ATK SP31-B Chevy LS 408 Boost/Nitrous Short Block
    $4,398.75
  • 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
    $5,376.25
    ATK SP69 Chevy LS3 415 Short Block 24 Tooth Flat Top
    $5,376.25
  • ATK Chevy 350CI Engine 345HP Base HP98

    ATK Chevy 350CI Engine 345HP Base HP98

    HP98 ATK Chevy 350CI Base Engine 345HP
    $2,693.01
    HP98 ATK Chevy 350CI Base Engine 345HP
    $2,693.01
  • ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth Flat Top SP39-G4-B Engine

    ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth Flat Top SP39-G4-B Engine

    SP39-G4-B ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth Flat Top
    $5,376.25
    SP39-G4-B ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 24 Tooth Flat Top
    $5,376.25
  • ATK Chevy LS 408 Short Block 24 Tooth -10cc Dished SP37 Engine

    ATK Chevy LS 408 Short Block 24 Tooth -10cc Dished SP37 Engine

    ATK SP37 Chevy LS 408 Short Block -10cc
    $3,958.88
    ATK SP37 Chevy LS 408 Short Block -10cc
    $3,958.88
  • 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
    $4,071.29
    ATK SP81 Chevy LS2 365CI Short Block -3.2cc
    $4,071.29
  • ATK Chevy LS 408 Short Block 58 Tooth -18cc Dished SP31 Engine

    ATK Chevy LS 408 Short Block 58 Tooth -18cc Dished SP31 Engine

    ATK SP31 Chevy LS 408 Short Block 58 Tooth -18cc
    $3,958.88
    ATK SP31 Chevy LS 408 Short Block 58 Tooth -18cc
    $3,958.88
  • 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
    $5,376.25
    ATK SP68 Chevy LS3 415 Short Block 24 Tooth -18cc Dished
    $5,376.25
  • ATK New Chevy 350CI Engine 315HP Base HP92

    ATK New Chevy 350CI Engine 315HP Base HP92

    HP92 ATK New Chevy 350CI Base Engine 315HP
    $3,079.13
    HP92 ATK New Chevy 350CI Base Engine 315HP
    $3,079.13
  • ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth Flat Top SP39-G4 Engine

    ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth Flat Top SP39-G4 Engine

    SP39-G4 ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth Flat Top
    $4,887.50
    SP39-G4 ATK Chevy LQ9 Gen IV 408 Stroker Short Block 24 Tooth Flat Top
    $4,887.50
  • ATK Chevy LS 408 Boost/Nitrous Short Block 58 Tooth -29cc Dished SP36-B Engine

    ATK Chevy LS 408 Boost/Nitrous Short Block 58 Tooth -29cc Dished SP36-B Engine

    ATK SP36-B Chevy LS 408 Short Block
    $4,398.75
    ATK SP36-B Chevy LS 408 Short Block
    $4,398.75
  • ATK Chevy LM7 383CI Short Block -3cc Flat Top Pistons 24 Tooth SP80 Engine

    ATK Chevy LM7 383CI Short Block -3cc Flat Top Pistons 24 Tooth SP80 Engine

    ATK SP80 Chevy LM7 383CI Short Block -3cc Flat Top
    $3,562.99
    ATK SP80 Chevy LM7 383CI Short Block -3cc Flat Top
    $3,562.99
  • ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 58 Tooth -10cc Dished SP26-G4-B Engine

    ATK Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block 58 Tooth -10cc Dished SP26-G4-B Engine

    ATK SP26-G4-B Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block
    $5,376.25
    ATK SP26-G4-B Chevy LQ9 Gen IV 408 Boost/Nitrous Short Block
    $5,376.25
  • 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
    $5,376.25
    ATK SP67 Chevy LS3 415 Short Block -10cc
    $5,376.25
  • 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
    $3,343.05
    HP91 ATK Chevy 350CI 87 Octane Base Engine 345HP
    $3,343.05
  • ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth Flat Top SP39-B Engine

    ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth Flat Top SP39-B Engine

    SP39-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth Flat Top
    $4,398.75
    SP39-B ATK Chevy LS 408 Boost/Nitrous Short Block 24 Tooth Flat Top
    $4,398.75
  • 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
    $3,890.45
    ATK SP98 Chevy 489/496 Stroker Short Block +20cc
    $3,890.45
  • ATK Chevy LM7 383CI Short Block -32cc Dished Pistons 24 Tooth SP79 Engine

    ATK Chevy LM7 383CI Short Block -32cc Dished Pistons 24 Tooth SP79 Engine

    ATK SP79 Chevy LM7 383CI Short Block -32cc Dished Pistons
    $3,562.99
    ATK SP79 Chevy LM7 383CI Short Block -32cc Dished Pistons
    $3,562.99
  • ATK Chevy LS 408 Short Block 58 Tooth -29cc Dished SP36 Engine

    ATK Chevy LS 408 Short Block 58 Tooth -29cc Dished SP36 Engine

    ATK SP36 Chevy LS 408 Short Block 29cc
    $3,958.88
    ATK SP36 Chevy LS 408 Short Block 29cc
    $3,958.88
  • ATK Chevy LQ9 Gen IV 408 Stroker Short Block 58 Tooth -10cc Dished SP26-G4 Engine

    ATK Chevy LQ9 Gen IV 408 Stroker Short Block 58 Tooth -10cc Dished SP26-G4 Engine

    ATK SP26-G4 Chevy LQ9 Gen IV 408 Stroker Short Block 10cc
    $4,887.50
    ATK SP26-G4 Chevy LQ9 Gen IV 408 Stroker Short Block 10cc
    $4,887.50

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