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6L V8 1976 GMC G15 400/6
Aircraft quality aluminum core
2 L4 1992 - 1998 Acura Integra GS 1
Muffler Body Width: 4
3L V8 1966 - 1969 Chevrolet Caprice 327/5
HP Copper Spark Plug - 0526-4 exhaust-reducers 6L V8 1976 GMC G15Overview: 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
