{"product_id":"zreneyfex-9pcs-10-5mm-spark-plug-wire-set-for-sbc-bbc-hei-90-straight-boots","title":"Zreneyfex 9Pcs 10.5mm Spark Plug Wire Set for SBC\/BBC HEI – 90° \u0026 Straight Boots","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eExperience reliable ignition performance with Zreneyfex’s nine-piece 10.5mm spark plug wire set, crafted for classic SBC and BBC Chevrolet engines. The wires blend a performance-oriented diameter with a heat-ready silicone jacket, delivering flexibility, durability, and consistent electrical transmission under hood heat and demanding conditions.\u003c\/p\u003e\n\u003cp\u003eThe 10.5mm design is optimized for steady spark delivery across cylinders, helping maintain smooth idle and confident throttle response in both shop work and weekend projects. The set’s two boot styles are selected to simplify installation and ensure a secure seal in tight spaces, whether you’re routing wires around headers or along compact valve covers.\u003c\/p\u003e\n\u003ch3\u003eUniversal fit and boot design\u003c\/h3\u003e\n\u003cp\u003eThese racing-grade wires are built to fit SBC and BBC Chevrolet engines and work with HEI-distributor configurations. The included 90-degree boot is tailored for HEI distributors, while the straight boot supports spark plugs and coil-in-cap HEI systems, providing versatile routing options for diverse engine bays.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e90-degree boot for HEI distributor connections\u003c\/li\u003e\n\u003cli\u003eBlack straight boot compatible with spark plugs and coil-in-cap HEI systems\u003c\/li\u003e\n\u003cli\u003eHigh-temperature silicone outer insulation for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eColor-coded blue wires for easy identification during installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDurability and materials\u003c\/h3\u003e\n\u003cp\u003eThe outer silicone insulation is designed to withstand elevated engine bay temperatures, reducing the risk of insulation breakdown and minimizing resistance changes under heat. The wires are constructed to endure vibrations and frequent maintenance without compromising electrical integrity, supporting reliable starts and steady performance over time.\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNine blue spark plug wires\u003c\/li\u003e\n\u003cli\u003e10.5mm insulation for heat resistance\u003c\/li\u003e\n\u003cli\u003eTwo boot styles: 90-degree HEI and straight\u003c\/li\u003e\n\u003cli\u003eNote: coil wires are not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePractical use considerations\u003c\/h3\u003e\n\u003cp\u003eDesigned for retrofits, engine rebuilds, or performance upgrades, these wires offer a clean, secure installation with clear routing pathways. They provide the possibility of improved ignition path clarity and organized engine wiring, without asserting guaranteed results. This spark plug wire set is a component for ignition reliability, not a standalone performance claim.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is a spark plug wire set; coil wires are not included.\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: What engines compatibility does the Zreneyfex 9 Pcs 10.5mm Spark Plug Wire Set offer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Compatible with SBC and BBC Chevrolet engines, including HEI designs; coil wires are not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What comes in the package?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Nine blue spark plug wires are included, featuring 10.5mm silicone insulation and boot styles for HEI connections.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Zreneyfex","offers":[{"title":"Default Title","offer_id":42470187335765,"sku":"B08FDK8D3J","price":43.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/zreneyfex-blue-spark-plug-wires-9pcs-pack.jpg?v=1778122852","url":"https:\/\/plentytorque.co.uk\/products\/zreneyfex-9pcs-10-5mm-spark-plug-wire-set-for-sbc-bbc-hei-90-straight-boots","provider":"PlentyTorque","version":"1.0","type":"link"}