No.24 Autolite Spark Plugs (8 Pcs) Ford 351 Cleveland GTHO - F2248

The Autolite No.24 Spark Plug set is a premium high-performance “cold” heat range option engineered specifically to meet the requirements of Ford 351 Cleveland engines, these spark plugs are perfectly suited for iconic models such as the Falcon GTHO (Phases 1, 2, and 3) and GT variants from the XW, XY, XA, XB, XC, XD, XE Falcon or ZC, ZD, ZF, ZG, ZH, ZJ, ZK Fairlane. This set of eight is the preferred choice for high compression, “worked” engines, heavy-duty applications, and vehicles running on LPG, delivering consistent ignition performance and enhanced engine reliability under demanding conditions.Cold Heat Range for High-Performance Use: The cold heat range rating is ideal for engines operating at higher compression ratios and under heavy loads. It effectively prevents pre-ignition and detonation during high-speed driving, protecting your engine from damage while optimising combustion efficiency.Superior Thermal and Electrical Conductivity: Featuring a full copper core, these plugs provide excellent heat dissipation and electrical conductivity. This helps maintain optimal operating temperatures and consistent spark energy, which is crucial for smooth engine running and fuel efficiency.Integrated Resistor to Reduce Interference: Each plug includes a built-in resistor that minimises radio frequency interference (RFI), preventing disruption to vehicle electronics and audio systems. Additionally, the resistor design reduces electrode erosion, extending the service life of the plugs.Robust and Durable Construction: Constructed with a cold-formed steel shell featuring precision-rolled threads for secure, vibration-resistant installation. The multi-rib insulator design prevents flash-over, reducing misfires and improving ignition reliability even in tough conditions.For owners and restorers of classic Ford vehicles, the Autolite Spark Plug Set offers a perfect blend of authentic performance, durability, and reliability. Whether you’re tuning for power or maintaining daily drivability, these plugs ensure your engine runs clean, smooth, and efficiently.