{"product_id":"atk-engines-hp94-small-block-chevy-383-stroker-base-engine-415hp","title":"ATK Engines HP94 Small Block Chevy 383 Stroker Base Engine, 415HP","description":"\u003cp\u003eThe ATK HP94 Chevy 383 stroker base engine is a strong street-performance small block built to deliver 415 horsepower and 460 ft.-lbs. of torque with a proven combination of aftermarket internals and aluminum heads. Featuring a 4-bolt OE roller block, Scat crank and rods, hypereutectic pistons, a hydraulic roller cam, and ATK high-performance aluminum heads, this 383 is designed for reliable power, crisp throttle response, and solid street manners with the flexibility to complete the build with your preferred induction and accessories. Engine Specifications:• HP: 415• TQ: 460• Block: OE roller block 4 bolt main 1pc seal 1996-2000• Bore\/Stroke: 4.040” x 3.750”• Displacement: 383CI• Crankshaft: Scat Nodular Iron external balance rear of crank\/internal balance front of the crank• Rods: Scat I Beam 5.7” Rods with ARP 8740 Bolts• Pistons: Hypereutectic 9.7:1 Compression• Rings: Moly• Camshaft: Hyd. Roller• Cam Specs: 220\/224 @50 .528in\/.536ex 110LSA• Timing Chain: Double Roller• Cylinder Heads: ATK High Performance aluminum with 2.020 in. \/1.600 ex. valves• Rocker Arms: Billet aluminum roller rockers 1.6 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• Flexplate\/Flywheel: Externally Balanced – Pioneer #FRA-159 (with Scat kit) Recommended Components:• Balancer: Internally Balanced – PowerBond #PB1046-N• Intake Manifold: ATK dual plane intake• Carburetor: Quick Fuel 680CFM Vacuum secondary’s electric choke #HR-680• Fuel Pump: Holley mechanical 110GPH #12-327-11• Distributor: HEI (Iron Gear)• Spark Plugs: Autolite #3923• Spark Plug Wires: 8mm• Water Pump: OE long pump Engine Info:• Oil: Conventional \/ Non Synthetic 10W30• Oil Filter: Wix or K\u0026amp;N• Timing: 34-36 Degrees• Spark Plug Gap: .035”• Firing Order: 18436572• Octane: 91+• Stall Converter: 2200-2800• Exhaust: 1 5\/8+ Headers Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary. These engines are year and model specific. All cores must be returned to ATK as they will provide the bill of lading and schedule the pickup once contacted. Do NOT return cores to Speedway Motors. Please refer to the link under the Installation Details or click here for more information.\u003c\/p\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHP: 415\u003c\/li\u003e\n\u003cli\u003eTQ: 460\u003c\/li\u003e\n\u003cli\u003eBlock: OE roller block 4 bolt main 1pc seal 1996-2000\u003c\/li\u003e\n\u003cli\u003eBore\/Stroke: 4.040” x 3.750”\u003c\/li\u003e\n\u003cli\u003eDisplacement: 383CI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrate Engine Type:\u003c\/strong\u003e Long Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e 383 cu. in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 415 horsepower\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 9.7:1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque:\u003c\/strong\u003e 460 ft.\/lbs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Type:\u003c\/strong\u003e Hydraulic Roller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Material:\u003c\/strong\u003e Hypereutectic Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Duration (.050 in):\u003c\/strong\u003e 220° intake \/ 224 ° exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Lift (in):\u003c\/strong\u003e .528 intake \/ .536 exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore x Stroke (in):\u003c\/strong\u003e 4.040\" x 3.750\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Covers Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Balance:\u003c\/strong\u003e External\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Heads Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Main Seal Style:\u003c\/strong\u003e 1-piece\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Body Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Pan Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming Cover Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarmonic Balancer Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexplate Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Cleaner Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plugs Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wires Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComputer Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Harness Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMFG. Part #:\u003c\/strong\u003e HP94\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold in Quantity:\u003c\/strong\u003e Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessory Bolt Holes Drilled:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Fuel:\u003c\/strong\u003e 91 Octane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Style:\u003c\/strong\u003e Stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ATK Engines\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Erise Motors","offers":[{"title":"Default Title","offer_id":67752133624128,"sku":null,"price":3680.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/7757\/6256\/files\/35020027_L850_93b230a7-784d-4a74-baaf-b21f31f18301-768x768.jpg?v=1791839253","url":"https:\/\/vorlaxauto.com\/products\/atk-engines-hp94-small-block-chevy-383-stroker-base-engine-415hp","provider":"Vorlax Auto","version":"1.0","type":"link"}