{"product_id":"cnpapc-iridium-spark-plugs-spark-plug-wires-kit-8-plugs-9-wires-direct-fit-for-chevy-v8-high-temp-silicone","title":"CNPAPC Iridium Spark Plugs \u0026 Spark Plug Wires Kit — 8 Plugs + 9 Wires, Direct-Fit for Chevy V8, High-Temp Silicone","description":"\u003cp\u003e\u003cstrong\u003eCNPAPC’s kit pairs eight iridium spark plugs with nine heavy-duty plug wires designed as a direct-fit ignition upgrade for many Chevy small- and big-block V8 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete ignition set combines fine-wire iridium plugs with reinforced silicone spark plug wires to deliver dependable spark delivery, improved ignitability and longer service life compared with standard replacement parts. The kit is marketed for a wide range of GM V8 displacements and classic vehicle applications; confirm fitment using the listed OEM numbers or your vehicle VIN before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and vehicles does this kit fit?\u003c\/h3\u003e\n\u003cp\u003eThe set is built to suit both Chevy small-block and big-block V8 engines across many model years and displacements. Fitment notes include common GM cubic-inch sizes and select classic cars and trucks—always verify against your engine code or OEM part numbers to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmall-block Chevy (SBC) ranges: 262, 265, 283, 302, 305, 307, 327, 350, 383, 400 cu in.\u003c\/li\u003e\n\u003cli\u003eBig-block Chevy (BBC) ranges: 366, 396, 402, 427, 454, 502 cu in.\u003c\/li\u003e\n\u003cli\u003eSample vehicle compatibility: Buick Century (1977–1981), Buick LeSabre (1978–1982), Checker Marathon (1975–1978), Chevrolet C20\/Suburban (1975–1986), Chevrolet P30 (1975–1976), Pontiac Sunbird (1978–1979).\u003c\/li\u003e\n\u003cli\u003eOEM part references supplied: 93440806, SP425; confirm with photos or VIN before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the iridium plugs and wires improve ignition performance?\u003c\/h3\u003e\n\u003cp\u003eIridium fine-wire electrodes require less voltage to produce a consistent spark, which improves start-up response and combustion stability. The matched high-temp silicone wires keep the current focused from coil to plug while resisting heat, moisture and abrasion that shorten wire life.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFine-wire iridium electrodes for stronger, more reliable sparks and extended service life (90,000+ km under normal conditions).\u003c\/li\u003e\n\u003cli\u003eDual-layer high-temp silicone jacket with fiberglass reinforcement for heat and abrasion resistance.\u003c\/li\u003e\n\u003cli\u003eStable ignition current flow to support consistent combustion and smoother engine operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does installation involve and is any special tuning required?\u003c\/h3\u003e\n\u003cp\u003eThe kit is engineered as a direct-fit replacement so installation is straightforward and generally requires basic hand tools. No electronic programming or ECU recalibration is necessary; simply match wire lengths and terminal ends to existing routing and torque the plugs to the manufacturer’s spec.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-fit design for easy swap-in of old plugs and wires without modifications.\u003c\/li\u003e\n\u003cli\u003ePre-tested sets shipped with a 12-month warranty for added confidence.\u003c\/li\u003e\n\u003cli\u003eRecommended: check plug gap, follow factory torque specs, and verify routing to avoid crossfire.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long can I expect this kit to last and what maintenance is recommended?\u003c\/h3\u003e\n\u003cp\u003eIridium plugs and silicone-reinforced wires are selected for longevity compared with conventional parts. Lifespan depends on driving conditions, but routine inspections and correct installation will maximize service life and reliability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIridium plug life: designed for extended service—manufacturer guidance indicates 90,000+ km under normal use.\u003c\/li\u003e\n\u003cli\u003eInspect wires for cracking, burns or loose connections every service interval and replace as needed.\u003c\/li\u003e\n\u003cli\u003eUse OEM torque and maintain clean boot-to-distributor\/coil connections to prevent misfires.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This CNPAPC ignition kit is aimed at classic Chevy and GM V8 owners, restorers and mechanics who want a reliable, long-life replacement that improves spark delivery without modifying engine electronics. It’s also suitable for fleet or vintage truck maintenance where direct-fit, durable components simplify upkeep—just confirm application with the OEM numbers or VIN before purchasing.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these plugs and wires fit my Chevy 350?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this kit lists compatibility with 350 cu in Chevy small-block engines, but verify fit with your VIN or the OEM numbers 93440806 and SP425.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is special tuning required after installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No electronic tuning is required; install to factory torque specs and check plug gaps per manufacturer recommendations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CNPAPC","offers":[{"title":"Default Title","offer_id":48083021955230,"sku":"B0FG82KQK7","price":60.56,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/cnpapc-front-packaging.jpg?v=1785822834","url":"https:\/\/northtrailauto.ca\/products\/cnpapc-iridium-spark-plugs-spark-plug-wires-kit-8-plugs-9-wires-direct-fit-for-chevy-v8-high-temp-silicone","provider":"North Trail Auto","version":"1.0","type":"link"}