{"product_id":"c6-corvette-427-convertible-ngk-v-power-spark-plugs-ls7","title":"C6 Corvette 427 Convertible NGK V-Power Spark Plugs - LS7","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1359\/4413\/files\/cca-9-99-shipping-performance-banner-v2.2.png?v=1784322136\" alt=\"CCA $9.99 shipping - Continental U.S.\" width=\"1458\" height=\"240\" style=\"display:block;width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003ch2\u003eNGK V-Power TR6 Nickel Spark Plugs for C6 Corvette 427 Convertible LS7\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eNGK V-Power TR6 nickel spark plugs\u003c\/strong\u003e, \u003cstrong\u003estock number 4177\u003c\/strong\u003e, fit the \u003cstrong\u003e2013 C6 Corvette 427 Convertible\u003c\/strong\u003e with its stock \u003cstrong\u003e7.0L LS7 V8\u003c\/strong\u003e. One order includes \u003cstrong\u003eeight spark plugs in two manufacturer four-packs\u003c\/strong\u003e for a complete eight-cylinder spark-plug replacement during routine scheduled ignition maintenance.\u003c\/p\u003e\n\u003cp\u003eThe 427 Convertible pairs its \u003cstrong\u003e7.0L LS7\u003c\/strong\u003e with open-top driving and a six-speed manual. V-Power’s nickel-alloy center electrode has a V-groove to support ignitability, while the copper core helps dissipate firing-end heat. This eight-plug set lets you renew the ignition’s service items together and inspect the existing plug wires during the same maintenance visit, without changing the car’s original coil-and-wire arrangement.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug identity:\u003c\/strong\u003e NGK 4177, design code TR6, V-Power nickel spark plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiring surface:\u003c\/strong\u003e Nickel-alloy center electrode with a V-groove.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal construction:\u003c\/strong\u003e 98% pure copper core and high-grade alumina silicate ceramic insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShell finish:\u003c\/strong\u003e Trivalent plating provides corrosion resistance and supports dry-thread installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded parts:\u003c\/strong\u003e Eight matching plugs only. Plug wires, ignition coils and installation tools are separate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnitability:\u003c\/strong\u003e The V-groove helps the spark start the air-fuel burn with less flame quenching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat control:\u003c\/strong\u003e The copper core transfers heat away from the firing end during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical insulation:\u003c\/strong\u003e The ceramic separates the high-voltage spark path from the metal shell.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhole-engine service:\u003c\/strong\u003e Replace all eight plugs together with a matching nickel design and one complete order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector Edition identity:\u003c\/strong\u003e The 2013 427 Convertible uses the naturally aspirated LS7, dry-sump lubrication and six-speed manual. Keep that full model identity with your maintenance records and parts order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAppearance packages:\u003c\/strong\u003e The 427 Heritage and 60th Anniversary appearance treatments do not alter the original LS7 plug selection. Choose service parts by the engine configuration; check any mechanical modifications separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation gap:\u003c\/strong\u003e Use \u003cstrong\u003e0.040 inch (1.02 mm)\u003c\/strong\u003e for the stock LS7. Measure each plug before fitting it; the supplied preset does not replace an individual gap check.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry-thread fitting:\u003c\/strong\u003e Do not add anti-seize. Follow the vehicle’s tightening specification so the plug seats correctly and can transfer heat through the cylinder head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService preparation:\u003c\/strong\u003e Keep dirt out of the spark-plug openings. Let the engine cool, inspect the ceramic and electrodes for damage, and start each plug carefully by hand. Check wire boots for deterioration and confirm they are securely seated when the job is finished.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #ff0000;\"\u003eCORVETTE COMPATIBILITY\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2013 C6 Corvette 427 Convertible\u003c\/li\u003e\n\u003cli\u003eConvertible\u003c\/li\u003e\n\u003cli\u003e7.0L LS7 V8, naturally aspirated, stock configuration\u003c\/li\u003e\n\u003cli\u003eSix-speed manual transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Buy from Custom Corvette Accessories?\u003c\/h3\u003e\n\u003cp\u003eWe’re fellow Corvette owners at Custom Corvette Accessories, offering \u003cstrong\u003eone-on-one customer service\u003c\/strong\u003e. For help choosing \u003cstrong\u003eNGK 4177 TR6 V-Power nickel spark plugs\u003c\/strong\u003e for your C6 Corvette 427 Convertible LS7, contact us for personal assistance with your car’s configuration and the complete eight-plug order.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":67732972077293,"sku":"4177","price":33.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1359\/4413\/files\/ngk-tr6-4177-v-power-corvette-nickel-spark-plug-full-view.png?v=1791837560","url":"https:\/\/www.corvettepartsandaccessories.com\/products\/c6-corvette-427-convertible-ngk-v-power-spark-plugs-ls7","provider":"Corvette Parts from Custom Corvette Accessories","version":"1.0","type":"link"}