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ATK High Performance Engines was founded in 1936 and continues to set new standards for remanufactured high performance engines. ATK was the first to offer a “new...
ATK High Performance Engines was founded in 1936 and continues to set new standards for remanufactured high performance engines. ATK was the first to offer a “new car” style warranty with its engines—an exclusive 24-month/unlimited mile warranty on every engine! And the company is dedicated to helping you set new standards on the street or track, too. ATK offers its GM, Ford, and Chrysler performance engines in three stages to help you achieve your specific performance goals. Shop Summit Racing for a full line of base, mid-level, and high performance ATK engines built with proven, high-quality components....
ATK High Performance Engines was founded in 1936 and continues to set new standards for remanufactured high performance engines. ATK was the first to offer a “new car” style warranty with its engines—an exclusive 24-month/unlimited mile warranty on every engine! And the company is dedicated to helping you set new standards on the street or track, too. ATK offers its GM, Ford, and Chrysler performance engines in three stages to help you achieve your specific performance goals. Shop Summit Racing for a full line of base, mid-level, and high performance ATK engines built with proven, high-quality components. Give your ride a power transplant with ATK High Performance Engines!
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Give your ride the extra twist only a stroker can deliver with ATK High-Performance GM 383 Stroker 415 hp Stage 1 long block crate engines. These engines feature quality components and professional assembly to give your car or truck the kick it needs. They produce up to 460 ft.-lbs. of torque—that's enough to get you rolling in a cloud of tire smoke! ATK GM 383 Stroker 415 hp Stage 1 long block crate engine specs: * Seasoned OE 4-bolt main roller block * 4.040 x 3.750 bore/stroke * 383 c.i.d. displacement * Scat nodular iron crankshaft (3.750 in. stroke; one-piece; externally balanced rear/internal front) * Scat 4340 forged I-beam connecting rods (5.700 in.) with ARP bolts * Hypereutectic pistons * Moly piston rings with 9.7:1 compression ratio * Hydraulic roller camshaft with 220/224 duration at 0.050, 0.528 in./0.536 ex. lift, 112LSA * Installed camshaft bearings clocked to OEM position * ATK high-performance aluminum cylinder heads with 2.02/1.60 ex. valves * Installed and sealed brass freeze plugs (oil galley plugs also installed and sealed) * Billet aluminum 1.6 ratio rocker arms * 5 qt. OE oil pan * 350 lbs.
( 4 )
$4,498.99
Be ready for the street or the strip with ATK High Performance GM 383 Stroker 500 hp Stage 3 long block crate engines. They are built using bulletproof components and true craftsmanship to create a beast that is ready to tear up the track, but is reliable enough for the street. Producing an incredible 500 hp and 505 ft.-lbs. of tire-shedding torque, these engines will be sure to get everyone's attention at the next track day or car show. ATK long blocks include: * Handpicked, remanufactured block * Performance aluminum cylinder heads * Intake manifold * Carburetion * 4340 forged crankshaft and H-beam connecting rods * Forged pistons * Hydraulic roller camshaft * Distributor, plug wires, and plugs * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube * Water pump * Front damper and flexplate
( 1 )
$7,798.99
Your engine needs a rock-solid foundation to make the horsepower you crave; that's where these ATK High Performance Chevy 383 Stroker short blocks come in. With these blocks, all of the hard work has been done for you. Everything comes machined, clearanced, balanced, and blueprinted, so you have a bulletproof bottom-end that is ready to run. Just decide how mild or wild you want to go. These ATK High Performance Chevy 383 Stroker short blocks include the following: * Handpicked and seasoned 4-bolt main block * Aligned and honed main bores * Nodular iron crankshaft * 3.75 in. stroke * I-beam connecting rods * Hypereutectic dish top pistons
( 2 )
$3,828.99
ATK High Performance GM 383 Stroker 525 hp Stage 1 long block crate engines are power transplants for your high performance projects. ATK Stage 1 or base engines are designed for builders that have their own component parts already, and who are interested in completing out the build themselves. GM base engines typically consist of the following: short block, camshaft, timing set, cylinder heads, valve covers, timing cover, oil pan, oil pump, and pick up tube. Engine specifications: * Horsepower: 525 * Torque: 515 * Block: OE roller block 4-bolt main one-piece seal 1996-2000 * Bore/stroke: 4.040 x 3.750 in. * Displacement: 383 * Crankshaft: Scat 4340 forged external balance rear of crank/internal balance front of the crank * Rods: Scat 4340 forged H-beam with ARP 8740 bolts * Pistons: Forged 10.2:1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: 246/250 at 50 .603intake/.609exhaust 110LSA * Timing chain: Double roller * Cylinder heads: ATK American-made aluminum 70cc/210cc 2.02/1.60 * Rocker arms: Billet aluminum 1.6 roller rockers * Oil pan: Moroso 7qt. with windage tray * Oil pump: Melling * Flexplate/flywheel: Pioneer external balance 168 tooth (with Scat kit)
Not Yet Reviewed
$7,198.99
ATK High Performance GM 383 Stroker 415 hp Stage 3 long block crate engines with EFI are designed for better drivability and trouble-free cold starts with no tuning required, regardless of elevation, driving habits, or part swap! Based around FiTech Self-Learning EFI systems, these engines come complete from throttle body down to the oil pan. The only thing you will need is to supply is the fuel system--in line, in tank, or the FiTech Fuel Command Center. They are dyno-tested with your EFI system and ready to go! Typically ATK GM 383 Stroker 415 hp complete long blocks consist of: * Seasoned OE block with 4-bolt mains * Scat nodular iron crankshaft * Scat I-beam connecting rods * Hypereutectic pistons * Chromoly piston rings * Hydraulic roller camshaft * ATK High Performance aluminum cylinder heads with 2.020 in. /1.600 ex. valves * Billet roller rocker arms * Timing set * Oil pan, oil pump and pick-up tube * Valve covers * Flexplate * Performance intake manifold * Distributor HEI * Long water pump * Front damper * FiTech Go EFI 4-600 hp * Spark plugs and wires * Dyno test/tune
Not Yet Reviewed
$6,098.99
ATK High Performance GM 383 Stroker 500 hp Stage 3 long block crate engines with EFI are designed for better drivability and trouble-free cold starts with no tuning required, regardless of elevation, driving habits, or part swap! Based around FiTech Self-Learning EFI systems, these engines come complete from throttle body down to the oil pan. The only thing you will need is to supply is the fuel system--in line, in tank, or the FiTech Fuel Command Center. They are dyno-tested with your EFI system and ready to go! Typically ATK GM 383 Stroker 500 hp complete long blocks consist of: * Seasoned OE block with 4-bolt mains * 4340 forged crankshaft * 4340 forged H-beam connecting rods * Forged pistons * Chromoly piston rings * Hydraulic roller camshaft * ATK aluminum cylinder heads * Billet roller rocker arms * Timing set * Oil pan, oil pump and pick-up tube * Valve covers * Flexplate * Performance intake manifold * Distributor HEI * Long water pump * Front damper * FiTech Go EFI 4-600 hp * Spark plugs and wires * Dyno test/tune
Not Yet Reviewed
$8,198.99
ATK High Performance GM 383 Stroker 435 hp Stage 3 long block crate engines with EFI are designed for better driveability and trouble-free cold starts with no tuning required, regardless of elevation, driving habits, or part swap! Based around FiTech Self-Learning EFI systems, these engines come complete from throttle body down to the oil pan. The only thing you will need is to supply is the fuel system--in line, in tank, or the FiTech Fuel Command Center. They are dyno-tested with your EFI system and ready to go! Typically ATK GM 383 Stroker 435 hp complete long blocks consist of: * Seasoned OE block with 4-bolt mains * OE cast crankshaft * 4340 forged I-beam connecting rods * Forged pistons * Chromoly piston rings * Hydraulic roller camshaft * Dart SHP aluminum cylinder heads * Billet roller rocker arms * Timing set * Oil pan, oil pump and pick-up tube * Valve covers * Flexplate * Performance intake manifold * Distributor HEI * Long water pump * Front damper * FiTech Go EFI 4-600 hp * Spark plugs and wires * Dyno test/tune
( 1 )
$7,098.99
Hardcore engines need a hardcore bottom end; that's why ATK High Performance developed these Chevy 383 Stroker Race Series short blocks. These short blocks are built around the strongest components available so that they can handle serious horsepower for your race car or hardcore street machine. These ATK High Performance Chevy 383 Stroker Race Series short blocks include the following: * Handpicked and seasoned 4-bolt main block * Aligned and honed main bores * Forged 4340 crankshaft * 3.75 in. stroke * Forge H-beam connecting rods * Forged dish top pistons
( 3 )
$4,208.99
Give your ride the extra twist only a stroker can deliver with ATK High-Performance GM 383 Stroker 435 hp Stage 3 long block crate engines. These fully-dressed (Stage 3) engines perform well on the street or strip and include all the Stage 2 components. They may also add in the following parts (among others): carburetion, filters, and a spark system to help produce up to 475 ft.-lbs. of torque—that's enough to get you rolling in a cloud of tire smoke! ATK GM 383 Stroker 435 hp Stage 3 long block crate engine specs: * Seasoned OE 4-bolt main roller block * 4.040 x 3.750 bore/stroke * 383 c.i.d. displacement * Scat nodular iron crankshaft (3.750 in. stroke; one-piece; externally balanced rear/internal front) * Scat 4340 forged I-beam connecting rods (5.700 in.) with ARP bolts * Forged flat-top pistons with two valve reliefs * Moly piston rings with 10.1:1 compression ratio * Hydraulic roller camshaft with 220/224 duration at 0.050, 0.528 in./0.536 ex. Lift, 112LSA * Installed camshaft bearings clocked to OEM position * Dart SHP aluminum cylinder heads with 72cc/180cc port volume and 2.02/1.60 in. valves * Installed and sealed brass freeze plugs (oil galley plugs also installed and sealed) * Billet aluminum 1.6 ratio full roller rocker arms * 5 qt. OE oil pan * 430 lbs.
( 4 )
$6,498.99
Pack stroker power and torque in your ride with ATK High Performance GM 383 stroker 380 hp Stage 1 long block crate engines. These engines are hand-built and balanced to ensure a strong-running, reliable engine for your daily driver or hot rod. The 460 ft.-lbs. of twist make these extremely versatile mills that are at home in a towing rig, muscle car, or street rod. Get back out on the road with the ground-pounding power that only a stroker can give you. ATK GM 383 Stroker 380 hp Stage 1 long block crate engines include: * Handpicked, remanufactured blocks * Dart Iron Vortec style cylinder heads * Nodular iron crankshaft and 4340 I-beam connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Cam lift- .495 int./.502 exh. * Cam duration at 0.50- 220 int./224 exh. * 9.5:1 compression * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube
Not Yet Reviewed
$4,498.99
Experience the torque that only a stroker can give you with ATK High Performance GM 383 TBI Stroker 320 hp long block crate engines. These engines crank out 320 hp and 395 ft.-lbs. of torque, perfect for your pulling rig, RV, or muscle truck. They are hand-assembled and precisely balanced to create smooth-running, reliable engines for your ride. ATK GM 383 TBI Stroker Stage 1 long block crate engines include: * Handpicked, remanufactured blocks * OE cast iron TBI cylinder heads * Nodular steel crankshaft and 4340 I-beam connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Cam lift- .435 int./.462 exh. * Cam duration at 0.50- 198 int./210 exh. * 9.5:1 compression * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube
( 1 )
$3,998.99
Replace the tired small block in your boat with ATK High Performance GM 383 Stage 1 marine long block crate engines. They are built from the ground up with off-shore performance in mind. These hand-built and balanced engines utilize Vortec power and stroker torque to produce an awesome 345 hp and 445 ft.-lbs. of twist that will get you moving on the open water. Each engine features brass freeze plugs and corrosion-resistant marine gaskets to keep the engines healthy and reliable. ATK GM 383 Stage 1 Marine long block crate engines include: * Handpicked, remanufactured blocks * Dart Iron Vortec cylinder heads * Nodular steel crankshaft and 4340 I-beam connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube
( 5 )
$4,417.99
Pack Vortec power and stroker torque in your ride with ATK High Performance GM 383 Vortec 390 hp Stage 3 long block crate engines. These engines are hand-built and balanced to ensure a strong-running, reliable engine for your daily driver or hot rod. The 460 ft.-lbs. of twist make these extremely versatile mills that are at home in a towing rig, muscle car, or street rod. Get back out on the road with the ground-pounding power that only a stroker can give you. Engine specifications: * HP: 390 * TQ: 460 * Block: OE roller block 4-bolt main 1-pc seal 1996-2000 * Bore/Stroke: 4.040 in. x 3.750 in. * Displacement: 383CI * Crankshaft: Scat nodular iron external balance rear of crank/internal balance front of the crank * Rods: Scat I Beam 5.7 in. rods with ARP 8740 bolts * Pistons: Hypereutectic 9.5:1 compression * Rings: Moly * Camshaft: Hyd. Roller * Cam Specs: 220/224 @50 .495in/.502ex 110LSA * Timing Chain: Double roller * Cylinder Heads: Dart vortec cast iron 67cc/165cc 2.02/1.60 * Rocker Arms: Stamped steel 1.5 ratio * Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some Corvettes and 62-67 Chevy II's) * Oil Pump: Melling STD volume * Balancer: Internally balanced – PowerBond #PB1046-N * Flexplate: Externally balanced – Pioneer #FRA-159 (with scat kit) * Intake Manifold: ATK HP dual plane * Distributor: HEI (Iron Gear) * Water Pump: OE long pump * Carburetor: Quick Fuel 680CFM vacuum secondary's electric choke #HR-680 * Fuel Pump: Holley mechanical 110GPH #12-327-11 * Spark Plugs: Autolite #605 * Spark Plug Wires: 8mm Engine info: * Oil: Conventional/Non-Synthetic 10W30 * Oil Filter: Wix or K&N * Timing: 34-36 Degrees * Spark Plug Gap: .035 in. * Firing Order: 18436572 * Octane: 91+ * Stall Converter: Stock * Exhaust: 1 5/8 Headers
Not Yet Reviewed
$5,998.99
Looking to upgrade your old engine using your existing heads? ATK high performance Chevy 377 Stroker short blocks use a 100 percent new American-made cast iron block outfitted with a Scat crank kit. All the hard work is done, you just need to finish it off. These crate engines are available with forged H-beam or I-beam connecting rods; dish top or flat top pistons; forged 4340 steel or nodular iron crankshaft; and other options. Note: Performance short blocks are based on dyno-proven combinations built with name brand parts. Stroker engine built over size of stock stroke. Short block strapped and shipped on wooden pallet crate.
Not Yet Reviewed
$3,489.99
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