![8mm Hi-Temp Sleeved Spark Plug Wire Set for Big Block Chevy 396, 402 & 454 w/HEI, Under Header w/90-degree Boots [Black]](https://www.jegs.com/images/mini_750/500/555/555-40289.jpg)
JEGSPART NUMBER: 555-40289
8mm Hi-Temp Sleeved Spark Plug Wire Set for Big Block Chevy 396, 402 & 454 w/HEI, Under Header w/90-degree Boots [Black]
$12899$151.99You Save$23.00
7 left in stockBig Block Chevy
Hi-Temp Spark Plug Wire SetFits Big Block Chevy 396-454 w/HEI Distributor 8 mm Black Hi-Temp Sleeved Under Header Design 90-degree HEI Distributor Female Boots 90-degree Spark Plug Boots Spiral Core for RFI/EMI Suppression Wire
JEGS 555-40289 Hi-Temp Sleeved Spark Plug Wire Set
- Under Header design with 90-degree spark plug boots for Big Block Chevy applications w/HEI Distributor
- 8 mm diameter wire with 350 ohms of resistance per foot
- The Spiral Core RFI/EMI suppression element wire provides the highest level of radio noise suppression
- Snap-Lock stainless steel terminals stay connected under extreme vibration conditions
- Fold-over crimping won't vibrate loose and prevents misfires
- Hi-Temp silicone boots
- Hi-Temp Silicone Fiberglass Reinforced Heat Sleeving
- Extends spark plug wire life
- Offers improved dielectric strength for added resistance to outside pulses
- Protects against exhaust header heat, chaffing, and contaminants such as oil, fuel, and coolant
- Each wire is sleeved from the distributor boot to the spark plug boot with JEGS logoed shrink sleeves at each end to complete the wire-to-boot sealing
- Complete, ready to install with cylinder numbered wires to make installation easier
- Includes Coil wire for external mount coil (Wire is cut to length and requires installation of the terminal end)
Extended Life Spark Plug Wires
JEGS Performance 8 mm Hi-Temp Spark Plug Wires manufactured with a unique silicone-fiberglass exterior sleeving. This sleeving provides extended wire life and improved dielectric strength and resistance to outside electrical pulses while protecting the wire against heat, chafing, and contaminants. Available in Black, Blue, and Red Colors.
Part TypeSpark Plug Wire
Product LineJEGS 8.0mm Hi-Temp Sleeved Spark Plug Wire Sets
BrandJEGS
Package Height3.7
Package Width9.5
Package Length9.5
Weight2.96 PG
Part CategoryPerformance Parts
Wires RoutedUnder header
Spark Plug Wire Diameter (Mm)8
Coil Boot IncludedYes
AssembledYes
Spark Plug Boot EndsEight 90 degree
Coil Boot MaterialSilicone
Spark Plug Boot ColorBlack
Distributor Terminal EndsMale/HEI
Distributor Boot ColorBlack
Spark Plug End Terminal TypeSnap Lock
Rfi SuppressionYes
Boot Type90 Degree
Distributor Boot MaterialSilicone
Wire ColorBlack
QuantitySold as a set
Coil Boot ColorBlack
Spark Plug Wire Resistance350 ohms/ft.
Coil Wire Boot Ends90 degree
Spark Plug Boot MaterialHi Temp Silicone
SleevedYes
Coil Wire IncludedYes
Noise Suppression TypeYes
Conductor StyleSpiral core
Part FitmentSemi Universal
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
ITEM YOU MAY ALSO CONSIDER
Some parts are not legal for use in California or other states with similar laws / regulations

![Spark Plug Wire Boot Guards, Black [Set of 8]](https://www.jegs.com/images/mini_200/500/555/555-40300.jpg)

![Self-Powered Timing Light [Powered by (2) D-Cell Batteries]](https://www.jegs.com/images/mini_200/500/555/555-w80578.jpg)
![Spark Plug Socket Set, 3/8 in. Drive [SAE/Metric 5-Piece]](https://www.jegs.com/images/mini_200/500/555/555-80509.jpg)

![Spark Plug Wire Boot Guards, Red [Set of 8]](https://www.jegs.com/images/mini_200/500/555/555-40302.jpg)
![Spark Plug Wire Boot Guards, Blue [Set of 8]](https://www.jegs.com/images/mini_200/500/555/555-40304.jpg)
![Spark Plug Wire Boot Guards, Silver [Set of 8]](https://www.jegs.com/images/mini_200/500/555/555-40310.jpg)













