Mercruiser 454 Spark Plugs

Amazon.com: set of 8 spark plugs for mercruiser 305 350 454 5.0l 5.7l 7 Hi perf mercruiser ngk spark plugs 33-59571 4.3l v6 305 350 454 7.4 502 Tune up mercruiser 454 502 efi magnum spark plugs wires distributor cap

I have a 3 liter mercruiser, may be head gasket, can I send pictures?

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Spark plugs denso iridum forfour 454I have a 3 liter mercruiser, may be head gasket, can i send pictures? Mercruiser plugs ngk 3l perfSet of 8 spark plugs for mercruiser 305 350 454 5.0l 5.7l 7.4l.

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