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QL77JC4, or the newly recommended QL82C. Either plug is fine, and both would be gapped at .030 unless you do alot of trolling, the go to .040 on the gap.<br />By the way, Champion plugs only...
Originally posted by moderator1:<br /> QL77JC4, or the newly recommended QL82C. Either plug is fine, and both would be gapped at .030 unless you do alot of trolling, the go to .040 on the gap.<br />By the way, Champion plugs only...
I use champion because that's what my engine's spec calls for and what my mechanic recommends, but I've always wondered, why not an "equivalent" in a different brand?
There really is no "equivalent"...the heat range may be close, but not the same...each manufacturers plugs dissapate heat at a different rate and it changes combustion charactoristics and coil and other ignition component resistance values.
