Autolite Racing spark plugs are precision-engineered to deliver peak performance under the most demanding racing conditions. Featuring a cut-back ground electrode, these plugs ensure optimal ignitability and superior heat transfer for quicker starts and enhanced engine efficiency. The yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making them ideal for colder heat ranges and performance modifications. Built with a high alumina multi-rib ceramic insulator, they provide exceptional thermal conductivity and insulation, preventing flash-over and ensuring long-lasting strength. The anti-corrosive nickel plating resists rust better than traditional black oxide coatings, maintaining durability and efficiency over time. Designed with a tapered seat type, these plugs are optimized for aftermarket cylinder heads, ensuring seamless compatibility and maximum performance on the track. With a short projection center electrode and nickel-tipped materials, these performance-grade spark plugs are built to handle the intense conditions of racing, delivering reliability and durability when it matters most.

Product Features:

• Engineered with a cut-back ground electrode that delivers optimal ignitability of the flame kernel and better heat transfer, leading to quicker starts.
• The yttrium-enhanced alloy enables up to 8% reduction in ground wire temperature for colder heat ranges designed to enable performance modifications and handle intense conditions.
• Designed with an anti-corrosive nickel-plating prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency.
• Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
• Optimal Performance: Features a tapered seat type, ensuring optimal performance in aftermarket cylinder heads used in racing.
• Durable Under Intense Conditions: Specifically designed to handle intense racing conditions, ensuring reliable performance and durability.