Best Spark Plugs For Big Block 454
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Top 8 Best Spark Plugs For Big Block 454
1
Autolite XP26-4PK Iridium XP Spark Plug, Pack of 4
Price: $14.45 – $34.78
Why we chose it
- Iridium-enhanced 0.6mm finewire design for optimal durability and performance
- Better overall ignitability and optimum performance
- Limited lifetime warranty
- V-trimmed ground electrode for improved ignitability
- Platinum protected ground wire for maximum efficiency in all ignition types
2
ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1)
Price: $1.69 – $11.95
Why we chose it
- Available for use in Marine applications
- Black Onyx coating helps reduce corrosion
- Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
- Copper core provides great heat transfer and helps maximize plug durability
- Ribbed suppressor seal extends resistance and helps prevent spark flash over and misfires
3
ACCEL 8199 HP Copper Spark Plug – Shorty
Price: $40.81 – $64.15
Why we chose it
- Ideal for use in cramped spaces
- Instant throttle response and better fuel economy
- Pack of eight
- Less fouling flame dissipation and misfire
- Deliver significantly more power at high RPM
4
NGK V Power Spark Plug UR4 (8 Pack) for CHEVROLET K20 1980-1980 7.4L/454
Price: $21.02 – $24.14
Why we chose it
5
ACDelco GM Original Equipment R43XLS Conventional Spark Plug
Price: $2.84 – $9.98
Why we chose it
- GM regularly updates production and service part designs to integrate new materials and technologies
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- Black Onyx coating helps reduce corrosion
- Copper core provides great heat transfer and helps maximize plug durability
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
- Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- Available for use in Marine applications
6
ACDelco Professional R43XL Conventional Spark Plug (Pack of 1)
Price: $4.98 – $12.91
Why we chose it
- Ribbed Suppressor Seal, which extends resistance and prevents spark flash over and misfire
- Black Onyx Coating helps prevent corrosion
- Available for use in Marine applications
- Nickel-chrome alloy sheathing to help prevent corrosion on center electrode
- Copper Core, the thermal properties of copper provide great heat transfer and increases plug durability
7
Autolite 403 Copper Resistor Spark Plug, Pack of 1
Price: $1.99 – $13.95
Why we chose it
- Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength
- 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
- Full copper core electrode provides better performance in all conditions
- Multi-rib insulator reduces danger of “flash-over”
8
Autolite Box of 4 Genuine 403 Copper Resistor Spark Plugs
Price: $13.96 – $16.86
Why we chose it
- Brand New Box of 4 Autolite Spark Plugs
- Full copper core electrode improves heat transfer and optimizes plug life
- Genuine Autolite Part # 403 Copper-glass seal bonded insulator, terminal post, and center electrode provide a tight seal that is 100 percent leak-proof Multi-rib insulator reduces danger of “flash-over” to prevent misfires Full copper core electrode improves heat transfer and optimizes plug life Copper core center electrode provides higher thermal conductivity Features high alumina ceramic for high dielectric strength and steel shell for installation robustness
- Copper core center electrode provides higher thermal conductivity
- Multi-rib insulator reduces danger of “flash-over” to prevent misfires
ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1)
ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are the high quality replacement ideal for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.
- Ranking the Brands
- Autolite: 37.50%
- ACDelco: 37.50%
- ACCEL: 12.50%
- NGK: 12.50%
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