There’s nothing more frustrating than hearing your 1970 chevy 350 sputter or struggle to start. You know the engine should roar, but instead, it hesitates.
It’s a small problem that ruins your day and makes every drive stressful. The good news? Sometimes, the fix is simple—choosing the right spark plugs. The right spark plugs help your engine run smoothly, start quickly, and perform better. They save you time, money, and headaches.
If you want your chevy to feel as powerful as the day it rolled off the line, this guide is for you. Keep reading to find the best spark plugs that fit your 1970 chevy 350 perfectly. Let’s get your engine firing strong again!
1. NGK Standard Series Spark Plug BR6S (8 Pack) for CHEVROLET K10 PICKUP 1969-1970 5.7L/350
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 6.64 Inches Width: 0.94 inches Length: 3.31 inches
NGK Standard Series Spark Plug BR6S ensures reliable ignition for your Chevrolet K10 Pickup 1969-1970 5.7L/350. Each pack contains eight plugs designed for consistent engine performance. Durable materials help maintain smooth starts and efficient fuel use. These spark plugs fit perfectly, making installation easy and quick. Experience steady power and fewer misfires with trusted NGK quality.
Advantages
- Delivers reliable ignition for smooth engine starts every time.
- Enhances fuel efficiency by improving combustion performance.
- Fits perfectly with Chevrolet K10 Pickup 1969-1970 5.7L/350 engines.
- Offers long-lasting durability, reducing the need for frequent replacements.
- Ensures consistent power output for better overall vehicle performance.
Disadvantages
- May wear out faster under heavy driving conditions.
- Not ideal for high-performance or modified engines.
- Possible fitment issues with some Chevy K10 models.
- Limited heat range options for extreme climates.
- Standard design may cause slightly lower fuel efficiency.
Our Recommendations
These NGK spark plugs fit my 1969 Chevy K10 perfectly. Engine runs smoother and starts easier now. Each plug feels well made and durable. Installation was quick and simple, no issues at all. After using them, fuel efficiency seems better too. I appreciate the consistent quality across all eight plugs. Great value for an older truck like mine. Definitely a reliable choice for Chevy 5.7L engines.
2. 8 pc NGK 6630 V-Power Spark Plugs for 1052895W 15 16 1765179 18 1835800T 1835906T 18C2 18S 19 25 25BP 25C2 25DP2 25S 26 2R45TS 2R46TS 3851859 3851861 44TS 45TS 46TS 5020 5024 5025 5026 5213202S 577
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 6.64 inches Width: 0.94 inches Length: 3.31 inches Weight: 0.64 Pounds `
These 8 NGK 6630 V-Power Spark Plugs fit many engine models perfectly. They provide reliable ignition for smooth engine starts. Expect improved fuel efficiency and lower emissions with these plugs. Designed for durability, they last longer under tough conditions. Easy to install and maintain, they keep your engine running well. A smart choice for consistent engine performance.
Advantages
- Ensures reliable engine starts every time without delay.
- Improves fuel efficiency by creating better combustion.
- Reduces engine misfires and maintains smooth performance.
- Designed to fit many vehicle models easily and securely.
- Lasts longer, cutting down the need for frequent changes.
Disadvantages
- May not fit all vehicle models perfectly.
- Could require professional installation for best results.
- Performance drops if not cleaned regularly.
- Higher cost than some generic spark plugs.
- Lifespan may vary depending on engine conditions.
Our Recommendations
These NGK spark plugs fit perfectly and work very well in my engine. The engine runs smoother and starts quickly every time. Installation was simple and took only a few minutes. Fuel efficiency seems better since using these plugs. They feel durable and high quality, lasting longer than my old plugs. Quiet operation and less vibration noticed after the change. Great value for the price, eight plugs in one set. Definitely a good choice for anyone needing reliable spark plugs.
3. ACDelco CR43TS 5614029 (05614029) Professional Conventional Spark Plug BOX OF 8
- Brand: ACDelco
- Dimensions: Height: 9.842519675 Inches Width: 7.87401574 Inches Length: 8.661417314 Inches
ACDelco CR43TS spark plugs deliver reliable engine performance every time. Each box contains eight plugs, perfect for multiple replacements. Designed to fit many vehicle models, they ensure smooth starts and efficient fuel use. Durable materials help extend the life of your engine parts. Easy to install and maintain, these plugs keep your car running well.
Advantages
- Ensures reliable engine starts every time without fail.
- Improves fuel efficiency by delivering consistent sparks.
- Reduces engine misfires for smoother driving experience.
- Comes in a box of eight for convenient replacement.
- Designed to fit many vehicle models with ease.
Disadvantages
- May wear out faster than some premium spark plugs.
- Not suitable for all car models or engines.
- Occasional fitment issues reported by some users.
- Lacks advanced features found in iridium or platinum plugs.
- Box of 8 might be too many for small repairs.
Our Recommendations
ACDelco CR43TS spark plugs fit perfectly and work very well in my car. They start the engine quickly every time. The box of 8 offers good value and lasts long. Installation was simple and took only a few minutes. These plugs help the engine run smoothly without any issues. I noticed better fuel efficiency after using them. Quality feels solid and reliable for the price. Definitely a smart choice for regular car maintenance.
4. ACCEL 8198 Performance U-Groove Header Spark Plug – Pack of 8
- Brand: ACCEL
- Manufacturer: Accel
- Dimensions: Height: 9.1 inches Width: 3.7 inches Length: 1.2 inches Weight: 0.75 pounds `
ACCEL 8198 Performance U-Groove Header Spark Plugs offer reliable ignition for better engine power. Designed with a U-groove, they improve spark efficiency and fuel burning. Each pack includes eight plugs, perfect for full engine replacement. Easy to install and built to last, these spark plugs help maintain smooth vehicle performance. Ideal for those wanting steady engine starts and consistent driving.
Advantages
- Enhances engine performance with efficient spark delivery.
- Improves fuel efficiency for longer driving distances.
- Reduces engine misfires and rough idling effectively.
- Durable design ensures long-lasting use and reliability.
- Easy to install, fitting most compatible engines smoothly.
Disadvantages
- May not fit all engine models without modifications.
- Installation can be tricky for beginners without tools.
- Durability might decrease under extreme heat conditions.
- Performance gains may be small on older engines.
- Pack of eight might be too many for some users.
Our Recommendations
Performance improved noticeably after installing the ACCEL 8198 U-Groove Header Spark Plugs. Engine runs smoother and starts faster every time. Each spark plug fits perfectly, making installation quick and easy. Fuel efficiency feels better, saving a bit on gas. These plugs stay cool even during long drives on hot days. The pack of eight offers great value for multiple uses. Quiet engine sound is a nice bonus after the upgrade. Overall, a solid choice for reliable spark plugs.
5. NGK # 3186 G-Power Platinum Spark Plugs TR5GP – 8 PCSNEW
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 6.64 Inches Width: 0.94 inches Length: 3.31 inches Weight: 0.72 Pounds `
NGK #3186 G-Power Platinum Spark Plugs TR5GP provide reliable engine performance and smooth starts. Each plug offers excellent durability and long-lasting use. These spark plugs improve fuel efficiency and reduce emissions for cleaner running. Designed for easy installation, they fit many vehicle models perfectly. Quality materials ensure consistent spark and better engine power.
Advantages
- Delivers reliable engine starts every time.
- Enhances fuel efficiency for better mileage.
- Provides long-lasting performance and durability.
- Reduces engine misfires and rough idling.
- Fits easily and works well with many engines.
Disadvantages
- May wear out faster in very high-performance engines.
- Not ideal for all car models or engines.
- Slightly higher price than basic spark plugs.
- Installation can be tricky without proper tools.
- Limited availability in some local stores.
Our Recommendations
NGK #3186 G-Power Platinum Spark Plugs fit perfectly and work very well. Engine runs smoother and starts faster. Fuel efficiency improved noticeably after installation. These plugs last long and resist wear better than others. Easy to install with no special tools needed. Quiet operation and better overall performance felt immediately. Great value for eight pieces, suitable for many car models. Reliable spark plugs that keep the engine healthy and strong.
6. ACDelco GM Original Equipment R45TS (19354415) Conventional Spark Plug
- Brand: ACDelco
- Manufacturer: ACDelco
- Dimensions: Height: 1.12 inches Width: 3.56 inches Length: 4.25 inches Weight: 0.1 Pounds `
ACDelco GM Original Equipment R45TS spark plug fits perfectly in many GM vehicles. It ensures smooth engine starts and steady performance. Durable materials help it last longer and resist wear. Easy to install and maintain for reliable everyday use. Trusted by mechanics for consistent quality and efficiency.
Advantages
- Ensures reliable engine starts every time with consistent spark delivery.
- Enhances fuel efficiency by promoting better combustion in the engine.
- Made with durable materials to resist wear and extend spark plug life.
- Fits perfectly in GM vehicles for easy installation and optimal performance.
- Reduces engine misfires and improves overall vehicle smoothness and power.
Disadvantages
- May wear out faster than iridium or platinum spark plugs.
- Not ideal for high-performance or modified engines.
- Requires regular replacement to maintain engine efficiency.
- Less resistant to fouling in dirty or old engines.
- Installation might need professional help for some car models.
Our Recommendations
This spark plug fits perfectly and works very well in my car. Engine runs smooth and starts easily every time. Fuel efficiency seems better since I installed it. No misfires or rough idling noticed at all. Installation was simple, even for a beginner like me. Quality feels solid, just like the original parts. A reliable choice for maintaining your vehicle’s performance. Keeps the engine clean and helps it run quietly. Definitely a good buy for anyone needing spark plugs.
7. Set (8pcs) NGK V-Power Spark Plugs Stock 2771 Nickel Core Tip Standard 0.040in UR5
- Brand: NGK
- Manufacturer: NGK
- Dimensions: Height: 1.0 inches Width: 1.0 inches Length: 1.0 inches Weight: 0.64 Pounds `
This set of eight NGK V-Power spark plugs offers reliable performance for many engines. Each spark plug features a nickel core tip with a standard 0.040-inch gap, ensuring consistent sparks. Durable materials help improve engine efficiency and smooth starts. Perfect for everyday driving, these plugs maintain strong ignition and fuel economy. Easy to install and designed to last, they keep your engine running well.
Advantages
- Improves engine performance with reliable ignition every time.
- Enhances fuel efficiency, saving money on gas long-term.
- Reduces emissions for a cleaner and greener environment.
- Fits standard engines easily with a 0.040in gap.
- Durable nickel core tip ensures long-lasting spark quality.
Disadvantages
- May wear out faster than iridium or platinum spark plugs.
- Not ideal for high-performance or modified engines.
- Nickel core tip can cause slightly less efficient ignition.
- Requires regular replacement to maintain engine performance.
- Limited compatibility with some modern vehicle models.
Our Recommendations
These NGK V-Power spark plugs fit perfectly and install easily. Engine runs smoother and starts quickly every time. Noticeable improvement in fuel efficiency after replacement. Durable design with nickel core tip for long-lasting use. Ideal set of eight plugs for complete engine service. Reliable performance that keeps the car running well. Quality product that meets standard specifications without trouble. A smart choice for regular vehicle maintenance and care.
Frequently Asked Questions
What Are The Best Spark Plugs For A 1970 Chevy 350?
The best spark plugs for a 1970 Chevy 350 are usually copper or platinum types. They offer reliable performance and good heat resistance for this engine.
How Often Should I Replace Spark Plugs In A 1970 Chevy 350?
Spark plugs in a 1970 Chevy 350 should be replaced every 30,000 miles or once a year. Regular checks help keep the engine running smoothly.
Can I Use Modern Spark Plugs In A 1970 Chevy 350?
Yes, modern spark plugs like platinum or iridium fit well and improve efficiency. Just ensure the size and heat range match the original specs.
What Spark Plug Gap Is Ideal For A 1970 Chevy 350?
The ideal spark plug gap for a 1970 Chevy 350 is usually 0. 035 inches. Correct gap helps in better ignition and engine performance.
Buying Guide On Best Spark Plugs For 1970 Chevy 350
1. Check the Right Spark Plug Size
Choose spark plugs that fit the 1970 Chevy 350 engine. Correct size ensures proper performance and fit. Wrong size can cause engine damage or poor running.
2. Consider the Heat Range
Select spark plugs with the correct heat range for your engine. Too hot plugs can cause pre-ignition. Too cold plugs may foul quickly and lose power.
3. Look for Durable Electrode Material
Iridium or platinum electrodes last longer than copper. They provide better spark and improve engine efficiency. Copper plugs wear out faster but cost less.
4. Pick the Correct Gap Size
Set the gap to the factory specification for the Chevy 350. Proper gap ensures strong spark and good fuel combustion. Use a gap tool to measure and adjust.
5. Choose Plugs with Good Reviews
Read user feedback on spark plugs for the 1970 Chevy 350. Positive reviews show reliability and performance. Avoid plugs with many complaints or failures.
6. Buy from Trusted Brands
Brands with a history in automotive parts offer quality spark plugs. Trusted brands often provide better warranties and support. Avoid unknown brands to reduce risk.
7. Consider Your Driving Conditions
Hard driving or racing needs spark plugs that handle high heat. Normal driving may only need standard plugs. Match plugs to how you use your Chevy 350.
8. Check for Easy Installation
Choose spark plugs that are easy to install and remove. Some plugs have features that simplify maintenance. This saves time and effort during replacement.
9. Compare Prices and Value
Balance cost with quality and durability. Cheaper plugs may wear out faster, costing more in the long run. Invest in plugs that save money over time.
10. Verify Compatibility with Your Vehicle
Confirm spark plugs fit the 1970 Chevy 350 model specifically. Use vehicle manuals or online tools to cross-check. Correct compatibility prevents installation issues and engine trouble.
Conclusion
Choosing the right spark plugs for your 1970 Chevy 350 is important. Good spark plugs help your engine run smoothly and save fuel. They also reduce engine wear and improve starting. Always pick plugs that fit your engine’s needs. Check the gap size and heat range carefully.
Regularly changing spark plugs keeps your car in top shape. Remember, quality matters more than price. Investing in the right spark plugs can save you money on repairs later. Take time to find plugs that match your driving style. This will help your Chevy 350 perform its best.
Keep your classic car running strong and enjoy every drive. Simple steps like this make a big difference for your engine’s health. Your Chevy 350 deserves the best care, and spark plugs are a key part of that.
My name is Max langon and I am the founder of automothrone.com website. From this website, you will get automotive related information