Which is the best spark plug for a Chevy 350?
1. NGK 3403 Spark Plugs This Spark plug from NGK helps in combusting and staying hotter for longer. The effectiveness of the plugs is seen with its factory set gaps that do not even need gaps. The G-Power Platinum spark plugs are ideal for long time use and for remaining so. 2. ACDelco 41-103 Chevy 350 Spark Plugs
What kind of spark plug do I need for a ZZ small block?
This is the type of spark plug you will need for your ZZ small-block. Most stock small-block cylinder heads take this 0.704-inch thread reach plug with a tapered seat and a projected nose. This happens to be a Bosch copper center electrode plug.
What are the right spark plugs for a’69 Camaro?
OK, I have seen several references on which spark plugs to use in my ’69 Camaro RS/SS Pace Car 350/300 with the Turbo 350 (all stock). I have a 1970 Motors manual that show AC Delco to be R44 used, but seen others that list R43S. Any body have an opinion or better reference? All my references show R44.
What kind of spark plugs do I Need?
At the top of the threads, this spark plug uses a tapered seat to seal the combustion pressure. Most aftermarket aluminum heads use a longer 0.750-inch thread with a gasket while most OE spark plugs seal with this tapered seat. Now let’s get to the business end of the spark plug.
What kind of spark plug should I get for my Chevy?
If that depth is very shallow, that constitutes a cold heat range spark plug. Besides the AC MR43LTS part number, I found several other plugs that are direct conversions including the Champion RS12YC, an Autolite 103, the Bosch +14 which is also called an HR8BC. This should be sufficient to find a good plug for your engine.
This is the type of spark plug you will need for your ZZ small-block. Most stock small-block cylinder heads take this 0.704-inch thread reach plug with a tapered seat and a projected nose. This happens to be a Bosch copper center electrode plug.
How to cross reference a spark plug model?
Search spark plug cross reference. Type in the spark plug model you want replacement for. Exclude brandname in your query. Advanced search. Choose brandname and start typing model number. The spark plug Cross references are for general reference only. Check for correct application and spec/measurements.
What kind of thread does a spark plug use?
Most modern spark plugs use a 14mm thread, which is what your heads use. As you have pointed out, the length of the threads is a critical part of the application. Your engine uses a spark plug with a reach or thread distance of 0.708-inch. This is the amount of thread that comes into contact with the cylinder head.