{"product_id":"gm-4-3l-ecotec3-lv3-remanufactured-engine-silverado-sierra-1500-2014-2021","title":"GM 4.3L EcoTec3 LV3 Remanufactured Engine – Silverado \/ Sierra 1500 (2014–2021)","description":"\u003cp\u003eRemanufactured GM 4.3L EcoTec3 LV3 long-block engine for verified 2014–2021 Chevrolet Silverado 1500 and GMC Sierra 1500 applications. Built to order using a sourced core; this is not a service to rebuild the engine you send us.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNo core charge · Free lower-48 commercial dock\/forklift or terminal delivery · Included 1-year unlimited-mile engine-only warranty (no labor).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eContact us for current build time and availability. Confirm the full VIN and original engine configuration before ordering.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ccaption\u003eU.S.-market factory LV3 applications; exact assembly verification required\u003c\/caption\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eModel \/ application\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eModel years\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine \/ configuration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVIN engine code (8th character)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eChevrolet Silverado 1500\u003c\/th\u003e\n\u003ctd\u003e2014–2018\u003c\/td\u003e\n\u003ctd\u003e4.3L EcoTec3 V6; RPO LV3. Original 2014-generation 1500 body; factory LV3 only.\u003c\/td\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eChevrolet Silverado 1500\u003c\/th\u003e\n\u003ctd\u003e2019–2021\u003c\/td\u003e\n\u003ctd\u003e4.3L EcoTec3 V6; RPO LV3. New-body 1500; excludes 2019 Silverado LD\/Sierra Limited.\u003c\/td\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGMC Sierra 1500\u003c\/th\u003e\n\u003ctd\u003e2014–2018\u003c\/td\u003e\n\u003ctd\u003e4.3L EcoTec3 V6; RPO LV3. Original 2014-generation 1500 body; factory LV3 only.\u003c\/td\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGMC Sierra 1500\u003c\/th\u003e\n\u003ctd\u003e2019–2021\u003c\/td\u003e\n\u003ctd\u003e4.3L EcoTec3 V6; RPO LV3. New-body 1500; excludes 2019 Silverado LD\/Sierra Limited.\u003c\/td\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eFitment verification:\u003c\/strong\u003e LV3 is the GM engine RPO; H is the eighth VIN character for the listed factory applications. Neither a 4.3L casting mark nor VIN H alone proves complete long-block interchange. Send the full 17-character VIN, build date and emissions information so the correct engine assembly can be matched.\u003c\/p\u003e\n\u003ch3\u003eImportant version differences and exclusions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2019 body-style distinction:\u003c\/strong\u003e the LV3 application shown is the new-body Silverado\/Sierra 1500. The 2019 Silverado LD and Sierra Limited are not included; GM's model-specific VIN pages list the 5.3L L83 for those carryover trucks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLV3 versus LV1:\u003c\/strong\u003e factory LV3 has gasoline direct injection, variable valve timing and Active Fuel Management (AFM), not Dynamic Fuel Management (DFM). GM identifies LV1 applications as having no AFM hardware. LV1 \/ VIN P applications, including Express\/Savana vans, are not covered as automatic replacements by this LV3 listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot the older Vortec:\u003c\/strong\u003e older 4.3L LU3\/L35-family engines are not established interchange with this Gen V direct-injected engine. Do not order by displacement or the Vortec\/EcoTec name alone.\u003c\/li\u003e\n\u003cli\u003eNo AFM\/DOD delete, DFM conversion, tuning change, performance upgrade or particular upgraded component is promised. Match the correct valvetrain, fuel-control, emissions and application-specific external components.\u003c\/li\u003e\n\u003cli\u003e2022 and later model years, HD 2500\/3500 trucks and other models not shown are not included in this listing; separate fitment and assembly verification is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBlock codes and engine identification\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ccaption\u003eIdentification references — not a guarantee of a particular supplied casting or universal interchange\u003c\/caption\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eIdentifier\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eReference \/ location\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eLimit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCylinder-block casting\u003c\/th\u003e\n\u003ctd\u003e12633129\u003c\/td\u003e\n\u003ctd\u003eDocumented LV3 casting reference in ATK's manufacturer catalog and remanufacturer data. Read the complete raised number on the actual cylinder block. This does not identify a unique model year or prove LV1 interchange.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCylinder-head casting\u003c\/th\u003e\n\u003ctd\u003eConfirm the full number on each actual head\u003c\/td\u003e\n\u003ctd\u003ePublished supplier head-code references conflict. No specific head casting or universal model-year casting crosswalk is guaranteed. Verify the complete actual numbers against the required assembly and build records; do not substitute a shortened catalog number. Head castings are distinct from the block casting.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEngine traceability \/ donor ID\u003c\/th\u003e\n\u003ctd\u003eTraceability label at rear of left cylinder head; VIN derivative at left rear of block\u003c\/td\u003e\n\u003ctd\u003eGM service information describes a typically nine-character stamped\/laser-etched VIN derivative. Record the entire label and stamp, including the engine-family\/RPO and assembly information where present. These are distinct from a raised casting, service-engine part number or the vehicle's full VIN.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003eOriginal identification marks on a sourced-core remanufactured engine can identify the donor rather than the buyer's vehicle. The finished assembly must still be matched to the buyer's VIN. If original marks are missing, confirm the core\/build records and installed components. Photos or casting numbers alone do not establish the engine's exact year, RPO or AFM configuration.\u003c\/p\u003e\n\u003ch3\u003eLong-block scope\u003c\/h3\u003e\n\u003cp\u003eIntake manifold and bolt-on accessories are not included. Confirm the supplied assembly and any application-specific external fuel-system components before installation; do not assume every item visible in a photo is included. Any photos supplied for this listing are representative; configuration varies by VIN and photographs do not independently establish exact fitment.\u003c\/p\u003e\n\u003ch3\u003eDelivery type\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBusiness with dock\/forklift or terminal pickup: free\u003c\/li\u003e\n\u003cli\u003eBusiness without dock (lift gate): +$100\u003c\/li\u003e\n\u003cli\u003eResidential (includes lift gate): +$300\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese terms apply within the contiguous lower 48 United States. If the delivery address does not match the delivery type selected, the difference will be charged before shipping. Contact us before ordering outside the lower 48; Alaska and Hawaii engine orders require a freight quote rather than online checkout.\u003c\/p\u003e\n\u003ch3\u003eBreak-in\u003c\/h3\u003e\n\u003cp\u003eFollow our \u003ca href=\"\/pages\/engine-break-in-procedure\"\u003eengine break-in procedure\u003c\/a\u003e and installation requirements to maintain your warranty.\u003c\/p\u003e\n\u003ch3\u003eWarranty and core\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e included 1-year unlimited-mile engine-only warranty. The standard warranty does not cover labor. Coverage, exclusions and claim requirements are governed by our \u003ca href=\"\/pages\/warranty-refund-policy\"\u003eWarranty \u0026amp; Refund Policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCore charge:\u003c\/strong\u003e none. This is a sourced-core, built-to-order long block; you do not send your engine to us for rebuilding.\u003c\/p\u003e\n\u003cp\u003eQuestions about fitment? Contact us before ordering.\u003c\/p\u003e\n","brand":"Phoenix Engine Specialists","offers":[{"title":"Business Dock \/ Forklift or Terminal Pickup","offer_id":46082394062871,"sku":null,"price":3999.0,"currency_code":"USD","in_stock":true},{"title":"Business Liftgate","offer_id":46082394095639,"sku":null,"price":4099.0,"currency_code":"USD","in_stock":true},{"title":"Residential Including Liftgate","offer_id":46082394128407,"sku":null,"price":4299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/6086\/4535\/files\/Horizontal_Flip_Graphic_5bb390b2-d60f-4d2e-9854-00beac6a0c70.png?v=1794112425","url":"https:\/\/www.phoenixenginespecialists.com\/products\/gm-4-3l-ecotec3-lv3-remanufactured-engine-silverado-sierra-1500-2014-2021","provider":"Phoenix Engine Specialists","version":"1.0","type":"link"}