Montecarlo Spark Plug - NGK V-Groove - Set of 4

NGK recommended spark plug for Lancia Beta Scorpion and Montecarlo S1 & S2 models. Use with 0.6mm gap for original specification ignition systems. This is a non-resistor type plug to deliver a more powerful spark. Sold as a set of 4.

These plugs have a 90º groove cut in the centre electrode that forces the spark to occur at the periphery of the electrode resulting in

• Less material to obstruct burn - faster flame kernel growth;
• Less heat energy absorbed by electrode mass – reduced quenching effect;
• Enhances the potential gradient - less voltage required to create spark;
• No loss of service life;