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Vehicle Info NeededJEGSPART NUMBER: 555-402029
8.5mm Black Ultra Pow'r Wires for 1974-1986 Big Block Chevy 454 Car, Truck
$8899$96.09You Save$7.10
Ships on Sep 21, 2026
Lowest Price GuaranteeGM
8.5mm Black Ultra Pow'r Wires1974-1986 Big Block Chevy 454 Car, Truck 90 degree HEI Distributor Terminals Multi-Angle Plug Terminals Includes:
- (8) Wires
- Wire Markers
- Wire Separators
- Dielectric Grease
Features:
- For Coil-in-Cap design system
- Does not utilize an external coil wire
- Greatly exceeds OE specs for RFI and conductivity at 500 ohms per foot resistance
- Spark plug boots and outer jackets are made of high-tear heat-resistant silicone
- The two outer jacket layers are separated by nylon pull tape for added pull strength & terminal retention
- Silicone Jacketed to resist high temperature, fuels & oils
- Stainless steel terminals connected using fold-over crimping that won't vibrate loose like core crimping
- Coil Wire not Included
- Made in the USA
Ultra Pow'r High-Performance Spark Plug Wires
JEGS 8.5 mm Ultra Pow'r Spark Plug Wires are developed by racing experts to provide excellent performance at a budget-friendly price. Using Kevlar spiral-wound core conductors wrapped with a stainless alloy-coated fiberglass strand, these spark plug wires increase strength and deliver high and even energy spark levels. Each wire set includes heat-resistant spark plug boots and silicone outer jackets to ensure a long life for your street or severe-duty vehicle.
Part TypeSpark Plug Wire
Product LineJEGS 8.5 mm Ultra Pow'r Wires
BrandJEGS
Package Height3.9
Package Width9.4
Package Length9.6
Weight2.05 PG
Part CategoryPerformance Parts
Diameter (Mm)8.5
Distributor Boot MaterialSilicone
PositionN/A
Wire ColorBlack
AssembledYes
Spark Plug Boot EndsEight multi-angle
Spark Plug Boot ColorBlack
Spark Plug Boot MaterialSilicone
Distributor Boot ColorBlack
Coil Wire IncludedNo
Rfi SuppressionYes
Conductor StyleSpiral core
Part FitmentSemi Universal
Boot Type90 Degree
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
