Keep the spark strong and protect your plug wires from header heat with this 12-inch ceramic-boot wire set from Granatelli. These wires are made for GM LS and LT coil-near-plug V8 applications, with 0-ohm resistance, 8mm black silicone jackets and ceramic-reinforced boots that can handle the heat found in tight or modified engine bays.
The spiral-wound stainless-steel core transfers ignition energy to the spark plugs while helping control RFI and EMI interference. Each wire comes assembled with OE-grade terminals, so there is no cutting or crimping required.
Fitment Information
- GM LS and LT-Series V8 engines with compatible coil-near-plug ignition systems
- LS1
- LS2
- LS3
- LS6
- LS7
- LS9
- LSA
- LSX
- LQ4
- LQ9
- Compatible with many Chevrolet, GMC, Cadillac and Pontiac LS/LT-powered cars, trucks, SUVs and engine swaps
- Granatelli-listed Chevrolet Silverado 2500 HD and 3500 HD 6.6L gas applications (2020, 2021, 2022, 2023, 2024, 2025, 2026)
- Granatelli-listed GMC Sierra 2500 HD and 3500 HD 6.6L gas applications (2020, 2021, 2022, 2023, 2024, 2025, 2026)
Because these wires are used across factory vehicles and LS/LT engine swaps, fitment depends on your engine, coil and terminal style, header clearance and required wire length. Check your current setup before ordering.
Specs & Features
- 0-ohm resistance for maximum spark-energy transfer
- 12-inch overall length measured from boot end to boot end
- 8mm black high-temperature silicone jackets
- Ceramic-reinforced spark plug boots rated for temperatures up to 2,000°F
- Silicone wire jackets rated for temperatures up to 500°F
- Spiral-wound stainless-steel core
- Designed to help suppress RFI and EMI interference
- OE-grade terminals for secure connections
- Assembled and ready to install
- Made in the USA
- Granatelli part number 28-1629-CBB
What's Included
- Eight assembled 12-inch black spark plug wires
- Eight ceramic-reinforced spark plug boots
Watch the Video
Here is a video from Granatelli showing how to install their 0-ohm spark plug wires.
Before You Buy
- These wires measure 12 inches from boot end to boot end.
- Check your coil terminals, spark plug terminals and required wire length before ordering.
- Ceramic boots are more rigid than standard silicone boots, so make sure there is enough room around your headers and other engine components.
- Custom engine swaps, relocated coils and aftermarket headers may require different wire lengths or routing.
Pairs Well With
- Radium Engineering Fuel Rails for GM LS Engines - A good addition for compatible LS1, LS2, LS3, LS6, L76 and L99 builds that need upgraded fuel rails.
- Radium Engineering Catch Can Kit for C6 Corvette - Helps keep oil vapor out of the intake on compatible LS2, LS3 and LS7 C6 Corvette applications.
About Granatelli Motor Sports
Granatelli Motor Sports builds ignition, suspension, exhaust and billet parts for street cars, track cars and custom builds. Its 0-ohm ignition wires are designed to get as much ignition energy as possible to the spark plugs while standing up to the heat found around headers and modified engine bays.
Redline360 only sells genuine and authentic Granatelli Motor Sports products.
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