This 4pc Set of NGK Iridium IX Spark Plugs fits your 79-91 Marine Power V8 350 cid 5.7L Q Series with Inboard 8 Cyl GM Small Block engine and is perfect for a performance upgrade or tune-up.

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4pcs 79-91 Marine Power V8 350 cid 5.7L Q Series NGK Iridium IX Spark Plugs wk


sixity products
this part is in stockStatus: In Stock
this is a brand new partCondition: New

This listing is for 4 Spark Plugs. Be sure to purchase the correct number of plugs for your vehicle.

NGK Iridium IX Spark Plugs are the choice of consumers, automotive enthusiasts, street racers and professional race teams around the world. Produced using advanced materials and cutting-edge technology, NGK spark plugs help maximize engine power and operating performance ride after ride.

  • Extreme performance upgrade over OEM, V-Power, G-Power, and Standard grade plugs.
  • Exceptional durability, with a 40,000 to 50,000 mile service life.
  • Plugs feature a fine-wire Iridium center electrode and Nickel-alloy ground electrodes for maximum engine horsepower and torque.
  • Designed for fuel-injected and turbocharged engines.
  • Precision laser-welded electrode construction.
  • Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties.


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About Us

Sixity Powersports
Sixity Powersports

Known for our industry-leading Sixity XT and XTA CV Axles, Sixity Powersports helps diehard ATV, motorcycle, and snowmobile riders find affordable - and awesome - replacement parts for their machines. Try our fast shipping today: 99% of orders ship within 1 business day!

Our goal is to provide you with the best possible shopping experience through unsurpassed value, convenience, and selection. We strive to deliver on our core tenets for our value-conscious customer base including free and fast shipping*, a 100% fitment guarantee**, a U.S.-based Customer Service Center, and a limited 1-year warranty on Sixity-branded parts. Give us a try today, and happy riding!

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** We guarantee all parts sold under the Sixity brand will fit the vehicles they are advertised to fit.


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