{"product_id":"ignition-coil-iridium-spark-plugs-wire-chevrolet-silverado-1500-legacy-2014-2020-5-3l-6-2l-v8","title":"Ignition Coil \u0026 Iridium Spark Plugs \u0026 Wire Chevrolet Silverado 1500 Legacy (2014-2020) 5.3L 6.2L V8","description":"\u003ch2\u003eHigh-Output Ignition Coil \u0026amp; Iridium Spark Plug Kit for 2014-2020 Chevrolet Silverado\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eResolves ignition system failures by delivering a 20-percent increase in spark energy over factory components, ensuring complete combustion for the EcoTec3 V8.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Silverado Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eThe GM EcoTec3 5.3L and 6.2L V8 engines are highly susceptible to under-hood heat soak, which progressively degrades the factory ignition coils and spark plug wires. Over extended mileage cycles, the thermal cycling breaks down the OEM coil's internal epoxy potting and compromises the secondary windings. This degradation manifests as internal voltage leakage, increased secondary electrical resistance, and a weak spark kernel. For the driver, this directly translates to cylinder misfires (often triggering P0300-series diagnostic trouble codes), rough idling, delayed throttle response, and a noticeable drop in overall fuel efficiency. Standard factory wires further exacerbate this issue as their insulation hardens and cracks, causing parasitic voltage loss and increased electromagnetic interference.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive ignition overhaul addresses these specific failure points through enhanced material selection and electrical design. The upgraded UF742 coils utilize pure copper primary and secondary windings encased in a high-dielectric epoxy, achieving a 61:1 turns ratio that safely outputs up to 26,000 volts—a 20-percent energy increase over stock components. High-temperature resistant silicone boots and high-density sleeves prevent voltage flashover. To harness this increased voltage, the kit includes 41-114 Iridium spark plugs. The ultra-fine iridium center electrode provides an extremely high melting point, yielding a concentrated, stable spark kernel for maximum combustion efficiency. Finally, the included 8mm spark plug wires feature robust heat shields and a high-suppression core to deliver peak voltage to the plug while eliminating RFI\/EMI electronic interference, effectively restoring factory drivability and peak engine efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2014-2020 Chevrolet Silverado 1500\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eL83, L86 (EcoTec3 V8) \/ K2XX, T1XX\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e355-420 hp \/ 383-460 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF-742, 41-114, 748UU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2014-2020 Chevrolet Silverado 1500 5.3L V8\u003c\/li\u003e\n  \u003cli\u003e2014-2020 Chevrolet Silverado 1500 6.2L V8\u003c\/li\u003e\n  \u003cli\u003e2019 Chevrolet Silverado 1500 LD (Legacy) 5.3L V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle harsh thermal environments and high engine loads, this complete ignition package restores the heavy-duty reliability required for hauling and towing while optimizing the V8 power delivery of your Silverado.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48477694755064,"sku":"DS-EUZXTJO20","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-iridium-spark-plugs-wire-chevrolet-silverado-1500-legacy-2014-2020-5-3l-6-2l-v8-1.jpg?v=1779379910","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-iridium-spark-plugs-wire-chevrolet-silverado-1500-legacy-2014-2020-5-3l-6-2l-v8","provider":"Performance Chip Tuning","version":"1.0","type":"link"}