HP Copper Spark Plug - 8179 Medium Margin 1L L6 1969 - 1979

1L L6 1969 - 1979 Chevrolet Nova 350/5

Also Fits 99-01 Ford F-350SD/450SD/550SD

Supercharged Application No Warning California Proposition 65 Warranty Limited 90 Day

Laser engraved Holley logo & inlet/outlet markings

7 V8 1992 - 1995 GMC C1500   350/5

HP Copper Spark Plug - 8179 Medium Margin 1L L6 1969 - 1979Overview: ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for