SKU: HLY565-303
UPC: 090127045206
MPN: 565-303
The HOLLEY BBF Billet Distributor Hyperspark Series (part number 565-303) is a modern EFI-compatible distributor engineered for big block Ford applications requiring precise ignition timing and reliable spark delivery. This distributor integrates Hall Effect pickup technology with HEI-style terminal configuration, delivering the ignition precision demanded by both stock restorations and performance engine builds. The billet construction ensures durability and consistent performance across varying load conditions and engine speeds.
The Hall Effect pickup sensor provides superior accuracy compared to traditional points-based ignition, eliminating mechanical wear and drift that degrades timing stability over time. The Hyperspark series is designed to interface with modern EFI systems while maintaining the external appearance and installation profile of conventional HEI distributors, making it compatible with existing engine bay layouts. The black finish resists corrosion and integrates seamlessly with factory or custom valve covers. At 4.05 lbs, the unit balances robust billet construction with practical weight distribution for big block applications.
This distributor suits builders modernizing carbureted or early fuel-injected big block Ford engines—particularly 427, 454, and other large-displacement mills—without extensive fabrication. It addresses the core challenge of maintaining factory-style integration while gaining the reliability and adjustability of electronic ignition. Enthusiasts restoring vintage Thunderbirds, Galaxies, Cougars, and performance trucks benefit from the balance between authenticity and modern ignition technology that this design achieves.
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