ATK reverse-engineers every engine to eliminate factory defects, then designs and constructs that engine so that it makes the best performance. Each engine has quality internal parts and includes the components from the reputable performance parts manufacturers in the industry. Every engine is dyno-proven and ATK provides the dyno sheet to verify the numbers. ATK also backs its products with a two-year unlimited mileage warranty.

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    • ATK® High Performance Engine
      (5 reviews)
      # sp5373
      High Performance Engine by ATK®. When you want a significant horsepower increase, give your car or truck a "heart" transplant with an ATK Performance Engine. ATK offers 3 stages of performance engines and every one of them is built...
      $2,496.25 - $5,361.25
    • ATK® High Performance Engine (HP29)
      (0 reviews)
      # mpn2592996
      High Performance Engine (HP29) by ATK®. 4 Bolt Mains, C10 Engine, C11 Engine, C12 Engine, 325 HP, 372 Ft Lbs, 5300 Rpm, ISO 14000 and ISO 9000 Quality Control, Chrome Timing Cover, Chrome Valve Cover, Black Oil Pan, Driver Side...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $2,496.25
    • ATK® High Performance Engine (HP82)
      (0 reviews)
      # mpn2593002
      High Performance Engine (HP82) by ATK®. 4 Bolt Mains, Block Cast # 010,379,014,388,678,509, Crank Cast # 442, Left Head Cast # 993,991,339,487,126,441, Right Head Cast # 993,991,339,487,126,441, C10 Engine, C11 Engine, C12 Engine,...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $2,968.75
    • ATK® High Performance Engine (HP45)
      (0 reviews)
      # mpn2592999
      High Performance Engine (HP45) by ATK®. C10 Engine, C12 Engine, High Performance Engine, 465 HP, 521 Ft Lbs, ISO 14000 and ISO 9000 Quality Control, I Beam Rods, Steel Crank. "Sim Tested" for Compression, Leaks, Noises, Oil...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $5,361.25
    • ATK® High Performance Engine (HP83)
      (0 reviews)
      # mpn2593003
      High Performance Engine (HP83) by ATK®. 4 Bolt Mains, Block Cast # 207, 209, 036, Crank Cast # 442, Left Head Cast # 624, 642, 114, Right Head Cast # 624, 642, 114, C10 Engine, C11 Engine, C12 Engine, High Performance Complete Drop...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $2,968.75
    • ATK® High Performance Engine (HP30)
      (0 reviews)
      # mpn2592997
      High Performance Engine (HP30) by ATK®. 4 Bolt Mains, C10 Engine, C11 Engine, C12 Engine, 325 HP, 372 Ft Lbs, 5300 Rpm, Chrome Timing Cover, Chrome Valve Cover, Black Oil Pan, Passenger Side Dipstick, Tinware. Applications Not...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $2,496.25
    • ATK® High Performance Engine (HP31)
      (0 reviews)
      # mpn2592998
      High Performance Engine (HP31) by ATK®. 4 Bolt Mains, Left Head Cast # 191, 193, Right Head Cast # 191, 193, C10 Engine, C11 Engine, C12 Engine, TBI Engine, 292 HP, 373 Ft Lbs, ISO 14000 and ISO 9000 Quality Control, Chrome Timing...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $2,843.75
    • ATK® High Performance Engine (HP99F)
      (3 reviews)
      # mpn2593005
      High Performance Engine (HP99F) by ATK®. Block Cast # C8TE-B, C8AE, D1MZ-AA, C8OE, Crank Cast # 2M, Left Head Cast # DO0E,C8AE-J,D3UE, Right Head Cast # DO0E,C8AE-J,D3UE, C10 Engine, C11 Engine, C12 Engine, High Performance...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $3,280.00
    • ATK® High Performance Engine (HP06)
      (3 reviews)
      # mpn2592993
      High Performance Engine (HP99F) by ATK®. Block Cast # C8TE-B, C8AE, D1MZ-AA, C8OE, Crank Cast # 2M, Left Head Cast # DO0E,C8AE-J,D3UE, Right Head Cast # DO0E,C8AE-J,D3UE, C10 Engine, C11 Engine, C12 Engine, High Performance...
      Reverse engineered to ensure any factory defects are eliminatedDyno proven horsepower gains
      $3,062.50


    Every ATK engine is a product of over 75 years of engine building experience. ATK's sister company, VEGE Motoren, was founded in Holland in 1936 and became successful remanufacturing components for ex-military vehicles left in Europe after World War II. Today ATK/VEGE offers over 1,500 products and is proud to be an ISO/TS 16949 and QS-9000 certified company. All its engines are built at the Performance Shop in Grand Prairie, Texas.

    ATK - FAQATK - VideosATK - About

    Each ATK engine is thoroughly cleaned and inspected, and machined to specifications using state-of-the-art processes and equipment. Every engine is balanced and blueprinted, with tolerances to 0.0002" and weight to 2 grams of specifications. Once machining is completed, numerous tests are performed to verify sizes, finishes, and component integrity. ATK's professional craftsmen hand assemble each engine using new pistons, rings, bearings, timing components, oil pump, and gaskets. Finally, each engine is tested under its own power to verify compression, oil flow and pressure.

    Featured Videos

    ATK offers several types of performance engines, a short bloc including a cylinder block assembled with pistons, piston rings, and crankshaft; the Stage 1 is a short block, camshaft, timing set, cylinder heads, valve covers, timing cover, oil pump, pickup tube and oil pan; the Stage 2 is the Stage 1 plus an intake manifold, distributor, water pump, front damper and flex plate; the Stage 3 includes the Stage 2 and carburetion, spark plug wires and spark plugs.

    ATK Reviews

    Average rating:  5  5 - 5 reviews
    Read All ATK Reviews
    5 of 5
    I saved a lot of money
    I ordered the ATK engine. I am impressed with the attention to detail ; it also arrived sooner than expected. The experience was pleasant and easier than dealing local. I'm sure I saved a lot of money too.
    CPosted by Connie (Davie, FL) /
    1988 Mercury Cougar
    Was this review helpful for you? Yes
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