NGK N4177 TR6 Spark Plug, 602 & 604 Crate Engine, LS1, LS Truck
NGK N4177 TR6 Spark Plug, 602 & 604 Crate Engine, LS1, LS Truck
NGK

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#9104177

NGK N4177 TR6 Spark Plug, 602 & 604 Crate Engine, LS1, LS Truck

  • Correct spark plug for GM 602, 604, and CT525 racing crate engines
  • Works well in 4.8, 5.3, 5.7, 6.0, and 6.2 liter LS Gen III and Gen IV engines for higher horsepower and boosted street engines
  • Features a 14mm thread and .690" reach with a 5/8" hex head
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$4.09

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Product Summary

Tapered Spark Plug Seat Style, 0.69" Spark Plug Reach

  • Correct spark plug for GM 602, 604, and CT525 racing crate engines
  • Works well in 4.8, 5.3, 5.7, 6.0, and 6.2 liter LS Gen III and Gen IV engines for higher horsepower and boosted street engines
  • Features a 14mm thread and .690" reach with a 5/8" hex head
  • Tip is made out of a nickel alloy material and has heat range of 6
  • Core is made out of copper and projected insulator
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Key Specs

MFG. Part #4177
BrandNGK
Thread Pitch14mm
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NGK 4177 Details

Every NGK spark plug is designed to withstand severe mechanical and thermal shock associated with these high-revving, high-compression race crate engines. 

  • NGK spark plug for 602 crate engine
  • Cool heat range

Application

NGK 4177 Specifications

KEY SPECS
MFG. Part #4177
BrandNGK
Thread Pitch14mm
GENERAL
Spark Plug Seat StyleTapered
Spark Plug Reach0.69"
ResistorYes
Insulator TypeProjected
Spark Plug Heat Range6
Core MaterialCopper
Tip MaterialNickel Alloy
Wrench Size5/8"
Sold in QuantityEach
NotesTR6
GTIN Code087295141779

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5.0

3 months ago

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Questions & Answers

2 Questions • 2 Answers

For a 602 on 93 unleaded which spark plug is best?

by Brad

• 7 years ago

1 answer

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Would this be your recommended plug using a GM602 engine on E85?

by Tim

• 9 years ago

1 answer

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