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7L V8 1978 - 1980 Pontiac Grand Am 305/5L V8 1977 - 1995 Chevrolet G10 305/5L V8 1988 - 1995 Chevrolet K1500 350/5
2021-2026 Chevrolet Suburban 183 CID
5L/V8 1964 Plymouth Savoy 4
6 V8 1971 Dodge Dart Swinger 340/5
Sterling Truck LT9500 (2006-2008)
Fits Various vehicles Iridium Pro Spark Plugs-14x26.5x16mm-Heat Range 9 Z1003100 carbureted-regulators 7L V8 1978 - 1980APR Iridium Pro Spark Plugs are the excellent upgrade for tuned engines. Our spark plugs are made from Iridium, which is one of the strongest materials you can use in this type of application. They run cooler, resist preignition, last longer than other materials with higher melting points, and even require less voltage to produce a strong spark. The electrode is harder and stronger than other materials, can dissipate heat more easily, is better
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