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Spark Plug - 14mm Thread - .460 in Reach - Heat Range 6 -4P.

U-Groove designed for spark delivery

ACCEL Performance
Supplier : ACCEL Performance
Part Number : 0576S-4
Barcode : 743047113202
ERP Code : ACC-0583

ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. These ACCEL Shorty Copper Spark Plugs have a 14mm thread and .460 in. reach, set of 4.

13.UPS
Official ACCEL Performance Distributor
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product details

Description

Since the mid 1980's, Accel's U-Groove spark plugs have set the standard for high performance spark plugs. Accel engineers developed and patented the U-Groove technology which permitted the spark to develop a much larger, hotter and fuller flash front. That effectively gave a more complete burn of the air/fuel mixture in the combustion chamber. Over the past 25 years engine head design and fuel management technology has changed. As a result, Accel is moving away from the U-Groove construction to the familiar ''conventional'' style ground electrode. In addition, the upper insulator will now be white instead of yellow, and available in convenient 4-packs.Bottom line.This one-piece construction spark plug with conventional ground electrode provides exceptional performance and value by producing:

  • Hotter Spark/Faster Burn Rate for more power at high rpms.
  • Improved Throttle Response, Fuel Economy, and Reduced Fouling.
  • Reduced Mis-fires.
  • Purified Alumina Insulator to prevent arcing.
  • Machine-rolled threads to protect heads.

Note: The higher the Part Number, the hotter the plug.
Example: 111-0111-4 is the coolest plug and 111-0116-4 is the hottest in that specific style spark plug.

Features

ACCEL has improved the ignitability of the spark plug in a new design! ACCEL has always utilized unique electrode grounding designs to improve combustion and create a larger spark.

  • Allows spark to expand directly above the midpoint of the electrode core preventing the spark from being shrouded by the ground strap.
  • Gives the flame an unblocked area to grow creates a larger flame front for a more complete burn.
  • Reduces excess heat absorption of the electrode and ground strap, also known as the “quenching effect”, which leads to misfiring, rough idle and overall poor performance.
  • Produces a larger spark nucleus without having to increase the spark gap.
  • Creates a more complete burn of the air fuel mixture resulting in Increased performance, improved throttle response, greater fuel efficiency and reduced emissions.
Accel Spark Plugs
Accel Spark Plugs

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