Product Summary

Gasket Spark Plug Seat Style, 0.75" Spark Plug Reach

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    Key Specs

    MFG. Part #0416S-4
    BrandAccel
    Thread Pitch14mm
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    Need To Know

    Quick and Easy Returns

    Return Policy

    Accel 0416S-4 Details

    • ACCEL performance spark plugs produce a larger spark for more power at high RPMs and improve throttle response and fuel economy with less fouling
    • Purified Alumina insulator prevents arcing
    • Machine rolled threads protect heads
    • ACCEL "Shorty" performance spark plugs part no. 0416S have a 14mm thread and .750 reach with projected tip
    • Length from bottom of washer to top 2.0115"

    Application

    Accel 0416S-4 Specifications

    KEY SPECS
    MFG. Part #0416S-4
    BrandAccel
    Thread Pitch14mm
    GENERAL
    Spark Plug Seat StyleGasket
    Spark Plug Reach0.75"
    ResistorYes
    Insulator TypeProjected
    Spark Plug Heat Range6
    Core MaterialCopper
    Tip MaterialCopper
    Wrench Size5/8"
    Sold in QuantitySet
    GTIN Code743047113073

    Ratings & Reviews

    4.8

    10 Reviews

    Overall Assessment

    Customers reaffirm that the product offers perfect fit and superior performance, especially in Chevy 388 ci Stroker engines. The product’s quality and upgrade compatibility are noted, as users employed it in improving a 1967 Camaro. Customers appreciate its efficient design, providing good clearance from wires to headers, and preventing boot damage. The product is the only solution fitting angled heads and headers, outperforming its competitors in this aspect. The product's usability and unique fit make customers keen on repurchase.

    4.8

    10 reviews

    5

    9

    4

    0

    3

    1

    2

    0

    1

    0

    Most Liked Positive Review

    5.0

    Always A Perfect Fit & Performance

    In my Chevy 388 ci Stroker with these heads, it is the only perfect application hit I found.

    Most Liked Negative Review

    3.0

    Good plugs but barely shorter than standard

    I'm sure the plugs will work great igniting the fuel mixture because Accel plugs have always worked good for me but I ordered these Shorty plugs for extra header clearance but they are literally only like 2 mm shorter than a regular plug so it didn't do much for me in that regard and I'm either going to have to go find even shorter ones from a different manufacturer or just get some of the ceramic spark plug boots.

    Filter by Ratings

    Fit great

    5.0

    3 months ago

    Sdbp

    Beresford sd

    Verified

    Fit my headers

    Would Recommend

    I would buy this product again.

    5.0

    4 months ago

    JR

    Philadelphia, Pa

    Verified

    They were exactly what Ineeded

    Would Recommend

    Good plugs but barely shorter than standard

    3.0

    a year ago

    Jeremy

    Montana

    Verified

    I'm sure the plugs will work great igniting the fuel mixture because Accel plugs have always worked good for me but I ordered these Shorty plugs for extra header clearance but they are literally only like 2 mm shorter than a regular plug so it didn't do much for me in that regard and I'm either going to have to go find even shorter ones from a different manufacturer or just get some of the ceramic spark plug boots.

    Would Recommend

    Needed short

    5.0

    2 years ago

    JD

    Santa Rosa, Ca

    Verified

    Our application needed shor plugs to be able to get to them with our huger headers theses went in with ease

    Would Recommend

    Easy install with headers

    5.0

    2 years ago

    Mark

    Oklahoma

    Verified

    I needed a shorter tip[ to get the plugs behind the headers, these are a great fit.

    Would Recommend

    Always A Perfect Fit & Performance

    5.0

    3 years ago

    R. L.

    Eastern Nebraska

    Verified

    In my Chevy 388 ci Stroker with these heads, it is the only perfect application hit I found.

    Would Recommend

    I will buy again when this item needs rpalced.

    5.0

    4 years ago

    Rags

    Lincoln, NE

    Verified

    I am upgrading a 1967 Camaro. I use Speedway as a source for quality parts.

    Would Recommend

    I will buy this product again

    5.0

    4 years ago

    Lil Red

    Florence SC

    Verified

    Had shorty plugs in past. Gave good clearance from wire to headers!!

    Would Recommend

    Extra clearance without sacrificing performance

    5.0

    5 years ago

    Buck380

    Waseca, MN

    Verified

    These shorty spark plugs allowed the extra clearance I needed to prevent burning up the boot.

    Would Recommend

    I like these plugs because they're the only plugs that fit.

    5.0

    6 years ago

    Coltyn

    Topeka, Ks

    Verified

    They work good with angled heads and headers. They're the only plugs that fit with my combination.

    Would Recommend

    Showing 10 of 10 reviews

    Questions & Answers

    1 Question • 1 Answer

    Will they fit a bbc 402 head

    by Big Lou

    • 3 years ago

    1 answer

    1 of 1 questions shown

    Fitment

    • Gen 1 L05 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • 307 Oldsmobile Small-Block V8

    • Vortec L31 Small Block Chevy

    • Oldsmobile 307

    • Gen 1 L05 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 307 Oldsmobile Small-Block V8

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L83 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L98 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 2 LT1 Small Block Chevy

    • Gen 2 LT1 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Vortec L31 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L05 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • Gen 1 L48 Small Block Chevy

    • Gen 1 L65 Small Block Chevy

    • Gen 1 L81 Small Block Chevy

    • Gen 1 L82 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • Vortec L31 Small Block Chevy

    • Gen 1 LM1 Small Block Chevy

    • Gen 1 L46 Small Block Chevy

    • 350 Chevy Small Block V8

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • 350 Chevy Small Block V8

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • 350 Chevy Small Block V8

    • Gen 1 L05 Small Block Chevy

    • Gen 1 L98 Small Block Chevy

    • 350 Chevy Small Block V8

    • Vortec L31 Small Block Chevy

    • Oldsmobile 307

    • Oldsmobile 307

    • Oldsmobile 307

    • Oldsmobile 307

    • Oldsmobile 307

    • Oldsmobile 307

    • Oldsmobile 307

    • Oldsmobile 307

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