Top 8 Best Chevy 350 Spark Plugs

Engine V8, Engine Size 5.7L350. Engine Family Chevy small block Gen I. Shorty Spark Plug No. Resistor Yes. Manufacturer Heat Range 4. Electrode Tip Material Nickel alloy. Electrode Core Material Copper. Insulator Type Projected. Spark Plug Thread Size 14mm. Spark Plug Reach 0.460 in. Spark Plug Seat Style Tapered Wrench Diameter 58 in. Ground Strap Quantity One. Sold In 8 Pack.

Includes 8 Spark Plug.. Genuine NGK Replacement Part.. New, Bulk Packed.. Consult owners manual for proper part number identification and proper installation.. Please refer to list for compatibility..

Our company was formed to help customers increase power, improve fuel efficiency, and reduce engine emissions that contribute to global warming. To accomplish this, we focus specifically on improving the ignition of fuel inside the combustion chamber. The advanced DiamondFire design actually increases combustion pressure in the engine. Faster flame speed and improvements in the direction of the flame front result in a marked and proven increase in power output, fuel economy, and reduced emissions in gasoline engines. We have verified this using the most sophisticated testing equipment available today.

Black Onyx coating helps reduce corrosion. Copper core provides great heat transfer and helps maximize plug durability. Ribbed suppressor seal extends resistance and helps prevent spark 'flash over' and misfires. Nickel-chrome alloy sheathing helps prevent corrosion on center electrode. Available for use in Marine applications. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors. GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle. GM regularly updates production and service part designs to integrate new materials and technologies.

Engine V8, Engine Size 5.7L350. Engine Family Chevy small block Gen I. Trivalent metal plating provides superior anti-corrosion and anti-seizing properties. Corrugated ribs prevent flashover. Trapezoid cut ground electrode reduces quenching.. Copper core aids in heat removal. Triple seals prevent leakage. Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer. Fine wire platinum tipped center electrode reduces required voltage for better starts, superior acceleration and increased fuel economy. Sold In 8 Pack.

G-Power Platinum. Designed to operate over a much wider heat range than ordinary plugs. Resists carbon buildup and pre-ignition. Patented triple gasket sealing process eliminates the possibility of combustion gas leakage.

Ideal for use in cramped spaces. Deliver significantly more power at high RPM. Instant throttle response and better fuel economy. Less fouling flame dissipation and misfire. Pack of eight.

Includes 8 Spark Plug.. Genuine NGK Replacement Part.. New, Bulk Packed.. Consult owners manual for proper part number identification and proper installation.. Please refer to list for compatibility..