Fram Autolite Race Series Spark Plug

The Fram Autolite Race Series Spark Plug line is built for track and high-performance engines. These racing spark plugs come in a range of thread sizes, reaches and heat ranges, so you can match the plug to your engine build and your racing conditions. They are non-resistor racing plugs.

Key Features:

• Cut-back ground electrode: exposes the spark for better ignitability of the flame kernel and quicker acceleration.
• Large ground electrode: improves heat transfer for consistent power under demanding racing conditions.
• Anti-corrosive nickel plating: resists rusting better than black oxide, which helps durability.
• Multi-rib ceramic insulator: gives good thermal conductivity and electrical insulation, and helps prevent flash-over.
• Heat range options: Autolite offers precise heat ranges for applications from street rods to top fuel cars.
• Non-resistor design: intended for racing ignition systems.

Autolite is the officially licensed spark plug of NASCAR. Choosing the right heat range matters in a modified engine. A plug that is too cold can foul, and one that is too hot can cause pre-ignition. Select the correct plug for your engine's compression, fuel and use.