{"product_id":"atk-hp89c-efi-chevy-350-with-fitech-efi-390hp","title":"ATK HP89C-EFI Chevy 350 with FITECH EFI 390HP","description":"\u003cp\u003eEngine Specifications: HP: 390 TQ: 420 Block: OE roller block 4 bolt main 1pc seal 1996-2000 Bore\/Stroke: 4.040” x 3.480” Displacement: 350CI Crankshaft: OE Reground external balance rear of the crank\/internal balance front of the crank Rods: OE powder metal 5.7” Pistons: Hypereutectic 10:1 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 Balancer: Internally Balanced – PowerBond #PB1046-N Intake Manifold: ATK dual plane intake Distributor: HEI (Iron Gear) Water Pump: OE long pump EFI System: Fitech Go Street EFI 400HP (throttle body, wire harness and hand held unit included) Fuel Pump: Not Provided – must run electric pump or mechanical fuel pump with Fitech Fuel Command Center Spark Plugs: Autolite #3923 Spark Plug Wires: 8mm Engine Info: Oil: Conventional \/ Non Synthetic 10W30 Oil Filter: Wix or K and 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.\u003c\/p\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOil: Conventional \/ Non Synthetic 10W30 with Comp Cam zinc additive #159 for first 3000 miles\u003c\/li\u003e\n\u003cli\u003eOil Filter: Wix or K\u0026amp;N per application\u003c\/li\u003e\n\u003cli\u003eTiming: 34-36 Degrees\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e 350 cu. in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e Yes\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\u003eHarmonic Balancer Included:\u003c\/strong\u003e Yes\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\u003eMaterial Type:\u003c\/strong\u003e Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMFG. Part #:\u003c\/strong\u003e HP89C-EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNotes:\u003c\/strong\u003e Includes FiTech EFI system. Must use an ignition box with this EFI unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold in Quantity:\u003c\/strong\u003e Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Fuel:\u003c\/strong\u003e 91 Octane\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":67752132280640,"sku":null,"price":2900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/7757\/6256\/files\/35020163_L1450_ffe9e9a2-0837-4303-af11-3c4f09f78794-768x768.jpg?v=1791839215","url":"https:\/\/vorlaxauto.com\/products\/atk-hp89c-efi-chevy-350-with-fitech-efi-390hp","provider":"Vorlax Auto","version":"1.0","type":"link"}