{"product_id":"atk-engines-hp55-small-block-chevy-383-stroker-base-engine-500hp","title":"ATK Engines HP55 Small Block Chevy 383 Stroker Base Engine, 500HP","description":"\u003cp\u003eBullet Proof Street- Strip engine lopey idle, great power and may not work with power brakes or factory AC. Engine Specifications:• HP: 500• TQ: 505• Block: OE roller block 4 bolt main 1pc seal 1996-2000• Bore\/Stroke: 4.040 x 3.750• 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: Hyd. roller• Cam Specs: 237\/245 @50 .597in\/.597ex 112LSA• Timing Chain: Double roller• Cylinder Heads: Dart SHP American Made aluminum 72cc\/200cc 2.02\/1.60• Rocker Arms: Billet aluminum 1.6 roller rockers• Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II’s)• Oil Pump: Melling• Flexplate\/Flywheel: Pioneer #FRA-159 external balance 168 tooth (with Scat kit) Recommended Components:• Balancer: PowerBond internal balance 8” #PB1046-N• Intake Manifold: Edelbrock performer RPM air gap #7501• Distributor: Pro billet (Iron gear)• Water Pump: Weiand action + long pump #9240• Carburetor: Quick Fuel 750CFM mechanical secondary no choke #Q-750• Fuel Pump: Holley mechanical 110GPH #12-327-11• Spark Plugs: Autolite #3923• Spark Plug Wires: 8mm Engine Info:• Oil: Conventional \/ Non Synthetic 10W30• Oil Filter: Wix or K\u0026amp;N per application• Timing: 34-36 Degrees• Spark Plug Gap: .035”• Firing Order: 18436572• Octane: 91+• Stall Converter: 2800+• Exhaust: 1 ¾ 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: 500\u003c\/li\u003e\n\u003cli\u003eTQ: 505\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\u003eCrankshaft: Scat 4340 forged external balance rear of crank\/internal balance front of the crank\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 Short Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamshaft Type:\u003c\/strong\u003e Hydraulic Roller\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 No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Balance:\u003c\/strong\u003e Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Heads Included:\u003c\/strong\u003e No\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 No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming Cover Included:\u003c\/strong\u003e No\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 HP55\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN Code:\u003c\/strong\u003e 653517171109\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":67752133722432,"sku":null,"price":3100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/7757\/6256\/files\/35020029_L1600_9d68c42e-e139-4067-bff8-a5574b73cce6-510x510.jpg?v=1791839257","url":"https:\/\/vorlaxauto.com\/products\/atk-engines-hp55-small-block-chevy-383-stroker-base-engine-500hp","provider":"Vorlax Auto","version":"1.0","type":"link"}