{"product_id":"jdmspeed-hei-distributor-cap-rotor-kit-for-k549-sbc-283-400-bbc-454-427-black","title":"JDMSPEED HEI Distributor Cap \u0026 Rotor Kit for K549 SBC 283-400 \/ BBC 454-427 (Black)","description":"\u003ch2\u003ePremium JDMSPEED HEI Distributor Cap \u0026amp; Rotor Kit\u003c\/h2\u003e\n\u003cp\u003eUpgrade your GM ignition with a purpose-built replacement designed for K549 HEI distributors. This kit covers Chevy small block engines from 283 to 400 cubic inches and big block engines from 454 to 427, offering a versatile solution for a range of classic and modern builds. The black finish adds a clean, cohesive look to most engine bays while delivering durable performance under daily driving conditions.\u003c\/p\u003e\n\u003cp\u003eBuilt with practical materials, the cap uses voltage-insulating materials and low-resistance brass terminals to help maintain steady spark transfer. The set includes a complete cap, rotor, and a matching black coil cover, giving you a ready-to-install package that combines form and function in one tidy assembly.\u003c\/p\u003e\n\u003cp\u003eIn real-world use, this kit aims to support reliable starts, smoother idle, and consistent ignition timing across a broad RPM range. While results can vary by vehicle setup, the components are chosen to provide a rugged aftermarket upgrade that blends robustness with a clean, automotive-ready look.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Distributor Cap Rotor Kit\u003c\/li\u003e\n  \u003cli\u003eColor: Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrass terminals support improved voltage transfer for steady ignition performance\u003c\/li\u003e\n  \u003cli\u003eVoltage-insulating materials help protect internal components during heat cycles\u003c\/li\u003e\n  \u003cli\u003eComplete kit includes cap, rotor, and a coordinating black coil cover for a cohesive upgrade\u003c\/li\u003e\n  \u003cli\u003eBroad compatibility with Chevy SBC and BBC engines via K549 HEI configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: This is a replacement part intended for aftermarket HEI distributors. Always verify fitment with your engine model and distributor type before purchase. The JDMSPEED kit is designed to be a straightforward swap that can fit a wide range of GM ignition setups while maintaining a clean, professional appearance.\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 is this JDMSPEED HEI distributor cap and rotor kit compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for Chevy SBC 283-400 and BBC 454-427 engines using K549 HEI distributors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the package?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes 1 distributor cap and rotor kit in black, with brass terminals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"JDMSPEED","offers":[{"title":"Default Title","offer_id":42468108238933,"sku":"B0F8N9KZKJ","price":34.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/jdmspeed-hei-cap-assembly-black.jpg?v=1778066965","url":"https:\/\/plentytorque.co.uk\/products\/jdmspeed-hei-distributor-cap-rotor-kit-for-k549-sbc-283-400-bbc-454-427-black","provider":"PlentyTorque","version":"1.0","type":"link"}