This 8mm custom fit ACCEL Super Stock Spiral spark plug wire set fit select Holden V8 applications. With only 500 Ohms/foot of resistance, more ignition energy can reach the spark plug, producing a hotter, longer-lasting spark flame kernel. The result is higher performance through improved efficiency, quicker throttle responses and reduced emissions. This 8mm wire's double silicone construction is rated to 550 degrees Fahrenheit. The high gloss wire jacket resists moisture, chemicals and heat extremes for longer life and great looks. The fiberglass braid adds greater pull strength and terminal retention, while the stainless steel spark plug terminals provide excellent long life, electrical conductivity and corrosion resistance.