Best Spark Plugs For 350 Chevy Engine: image
Top Pick

Full copper core spark plugs provide better performance in all conditions. The insulator reduces radio frequency interference (RFI) and electrode erosion. It also provides a one-piece terminal post to add strength. Autolite’s Spark Plugs are available in various sizes, shapes, and thicknesses. They can be used in any vehicle or engine compartment. The plugs have a maximum operating temperature of 250°C. The plugs are sold at a cost of?2 lakh.

Value for Money

NGK IRIDIUM IX Spark Plugs, 14mm Thread Size, 11mm (7/16″) Reach, Fine Wire (0.6mm) Gap, Heat Range 5 to 60°C. The plugs are sold in packs of 4 and come with a lifetime warranty. The spark plugs have a life expectancy of five years. They can be used on any vehicle or motorcycle. Notably, the new plugs were launched by Indian manufacturer NGK in 2015. The plugs are available in four different colours.

Honorable Mention

Champion copper plus spark plugs are built to ISO and SAE standards for proven performance. The patented SAC-9 semi-conductor resistor provides maximum conductivity and heat control while providing good overall wear characteristics. The plug is made from 100% pure copper with no additives or fillers used in the manufacturing process. The plug has a lifetime warranty of one year. Notably, this is the first time that a copper core was used in a spark plug.

Best Spark Plugs For 350 Chevy Engine

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Top 10 Best Spark Plugs For 350 Chevy Engine

Top Pick
1

Fram Autolite 25-4PK Copper Resistor Spark Plug, Pack of 4

308 ratings | 10 offers | 308 Reviews
Price: $9.94$19.42
Why we chose it
  • Full copper core electrode provides better performance in all conditions
  • Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength
  • Fit type: Vehicle Specific
  • Multi-rib insulator reduces danger of “flash-over”
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof
Fram Autolite 25-4PK Copper Resistor Spark Plug, Pack of 4: image
92%
customers recommend this product
4.6/ 5
2

Denso (5026) T16PR-U11 Traditional Spark Plug, Pack of 1

1 ratings | 12 offers | 1 Reviews
Price: $1.46$8.64
Why we chose it
  • T16PR-U11
  • Efficient fuel consumption
  • Increases engine performance and throttle response
  • Improved cold-starting
  • Stable combustion during idling
Denso (5026) T16PR-U11 Traditional Spark Plug, Pack of 1: image
100%
customers recommend this product
5/ 5
3

Champion Copper Plus 18 Spark Plug (Carton of 1)

53 ratings | 20 offers | 53 Reviews
Price: $0.75$12.05
Why we chose it
  • Durable: Champion copper plus spark plugs are built to ISO and SAE standards for proven performance Champion’s patented SAC-9 semi-conductor resistor provides maximum EMI and RFI suppression
  • Champion copper plus spark plugs use TinTac and Ultraseal Shells, this eliminates the need for the use of anti-seize compound during installation by providing the best corrosion protection of any spark plug in the industry
  • Superior corrosion resistance
  • The Champion copper plus spark plug features a copper core electrode that provides increased conductivity and heat control while delivering good overall wear characteristics
  • Built to ISO and SAE standards for proven performance
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Provides longer life Copper core center electrode allows for accurate control of the plug’s heat range, optimizing the plug’s performance and adding to the longevity of the spark plug
  • Copper Plus – Dependable Performance and Durability
Champion Copper Plus 18 Spark Plug (Carton of 1): image
94%
customers recommend this product
4.7/ 5
4

Motorcraft SP-450 ASF42C Spark Plug (Asf42Cf4)

3 ratings | 2 offers | 3 Reviews
Price: $16.36$16.42
Why we chose it
  • Motorcraft Spark Plug SP-450
  • Include: 1 Plug
Motorcraft SP-450 ASF42C Spark Plug (Asf42Cf4): image
100%
customers recommend this product
5/ 5
5

ACDelco GM Original Equipment R44TS Conventional Spark Plug

1 ratings | 6 offers | 1 Reviews
Price: $3.49$17.48
Why we chose it
  • 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
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Black Onyx coating helps reduce corrosion
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
ACDelco GM Original Equipment R44TS Conventional Spark Plug: image
100%
customers recommend this product
5/ 5
6

Champion Platinum Power 3018 Spark Plug (Carton of 1)

28 ratings | 10 offers | 28 Reviews
Price: $3.08$7.56
Why we chose it
  • Heat-Active alloy allows electrodes to reach optimal temperature
  • Exclusive heat-active alloy allows the electrodes to reach optimal temperature quickly and maintain stable operating temperature under all engine loads
  • Platinum Power- Premium Spark Plug. Powerful Performance.
  • V-trimmed ground electrode promotes sharper spark focus
  • Fine-wire center electrode for greater ignitability
  • Platinum conductor Center electrode platinum tip wears less than a standard spark plug This allows the plug to maintain the gap setting throughout its life
  • Platinum center electrode for long life
Champion Platinum Power 3018 Spark Plug (Carton of 1): image
90%
customers recommend this product
4.5/ 5
7

NGK (2953) YR5GP G-Power Platinum Spark Plug, Pack of 1

2 ratings | 5 offers | 2 Reviews
Price: $3.23$9.98
Why we chose it
  • Features superior anti-corrosion and anti-seizing properties
  • Constructed from durable material
  • You can depend on NGK for quality and reliability
  • Fine platinum tip reduces required voltage
  • Extremely durable under high heat
NGK (2953) YR5GP G-Power Platinum Spark Plug, Pack of 1: image
100%
customers recommend this product
5/ 5
8

Denso 4509 Platinum TT Spark Plug. Part# PTF16TT

1 ratings | 5 offers | 1 Reviews
Price: $5.99$8.38
Why we chose it
  • 1.5mm Titanium Enhanced Ground Electrode
  • Denso Part# PTF16TT
  • 1.1mm Platinum Tipped Center Electrode
  • Sample Image May Vary From Actual Product
Denso 4509 Platinum TT Spark Plug. Part# PTF16TT: image
100%
customers recommend this product
5/ 5
9

4 New NGK IRIDIUM IX Spark Plugs YR5IX # 7516

2 ratings | 2 offers | 2 Reviews
Price: $32.06$41.59
Why we chose it
  • Sold in packs of 4
4 New NGK IRIDIUM IX Spark Plugs YR5IX # 7516: image
84%
customers recommend this product
4.2/ 5
10

Denso (4715) ITF16TT Iridium TT Spark Plug, (Pack of 1)

2 ratings | 7 offers | 2 Reviews
Price: $7.91$15.87
Why we chose it
  • Denso # 4715
  • 0.7mm Platinum Ground Electrode
  • DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode
  • Larger spark translates to more power and superior fuel economy
  • 0.4 mm iridium center electrode: world’s smallest diameter that maximizes firing potential
  • 0.4mm Iridium Center Electrode
  • DENSO patented 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode
  • 0.7 mm needle tip ground electrode: promotes higher spark energy and less heat quenching
Denso (4715) ITF16TT Iridium TT Spark Plug, (Pack of 1): image
100%
customers recommend this product
5/ 5
Ranking the Brands
Autolite: 10.00%
Denso: 30.00%
Champion: 20.00%
Motorcraft: 10.00%
ACDelco: 10.00%
: 10.00%
NGK: 10.00%

Comparison Table

Сomparison: Fram Autolite 25-4PK Copper Resistor Spark Plug, Pack of 4: imageСomparison: Denso (5026) T16PR-U11 Traditional Spark Plug, Pack of 1: imageСomparison: Champion Copper Plus 18 Spark Plug (Carton of 1): imageСomparison: Motorcraft SP-450 ASF42C Spark Plug (Asf42Cf4): imageСomparison: ACDelco GM Original Equipment R44TS Conventional Spark Plug: imageСomparison: Champion Platinum Power 3018 Spark Plug (Carton of 1): imageСomparison: NGK (2953) YR5GP G-Power Platinum Spark Plug, Pack of 1: imageСomparison: Denso 4509 Platinum TT Spark Plug. Part# PTF16TT: imageСomparison: 4 New NGK IRIDIUM IX Spark Plugs YR5IX # 7516: imageСomparison: Denso (4715) ITF16TT Iridium TT Spark Plug, (Pack of 1): image
Fram Autolite 25-4PK Copper Resistor Spark Plug, Pack of 4Denso (5026) T16PR-U11 Traditional Spark Plug, Pack of 1Champion Copper Plus 18 Spark Plug (Carton of 1)Motorcraft SP-450 ASF42C Spark Plug (Asf42Cf4)ACDelco GM Original Equipment R44TS Conventional Spark PlugChampion Platinum Power 3018 Spark Plug (Carton of 1)NGK (2953) YR5GP G-Power Platinum Spark Plug, Pack of 1Denso 4509 Platinum TT Spark Plug. Part# PTF16TT4 New NGK IRIDIUM IX Spark Plugs YR5IX # 7516Denso (4715) ITF16TT Iridium TT Spark Plug, (Pack of 1)
BrandAutoliteDensoChampionMotorcraftACDelcoChampionDensoNGKDenso
Core MaterialCopperPlatinumCopperPlatinumIridium
Top Material TypeAlloy SteelMetalNickelTitanium
ManufacturerFRAMDENSOChampion Spark PlugMotorcraftACDelcoChampion Spark PlugDenso Sales California, Inc.NGK Spark PlugDenso
Item Weight1.76 ounces1.44 ounces1.44 ounces1.6 ounces6.4 ounces1.44 ounces1.76 ounces9.8 ounces4.7 ounces
Product Dimensions1 x 3.88 x 3.38 inches3.7 x 0.8 x 0.6 inches4.16 x 3.59 x 1.12 inches4 x 3.9 x 1 inches3.35 x 0.96 x 0.96 inches48.24 x 41.52 x 10.92 inches9.74 x 5.96 x 4.58 inches
Country of OriginChinaChinaUSAUSAJapan
Is Discontinued By ManufacturerYesNoNoNoNo

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