Taylor Spiro-Pro Spiral Core 8 mm Spark Plug Wire Set - Red - 90 Degree Plug Boots - HEI / Socket Style - Cut-To-Fit - 4-Cylinder H771003XL 2007 GMC Sierra 1500 HD

2007 GMC Sierra 1500 HD Classic Fleetside 78

The holes are compatible to Penske M

Performer Vortec V6

3-1/4 in to 4 in ID

ideal for storing spare engines in trailer

Taylor Spiro-Pro Spiral Core 8 mm Spark Plug Wire Set - Red - 90 Degree Plug Boots - HEI / Socket Style - Cut-To-Fit - 4-Cylinder H771003XL 2007 GMC Sierra 1500 HDAvailable For Street Or Track Applications Spiro Wound With Stainless Steel Wire Covered With A Conductive Fluorocarbon Material Provides More Fire Power To the Spark Plugs OEM Resistor Core Wires Eliminates Radio Frequency Interference Two Layers Of 100 percent Pure SiliconeTaylor 8mm Spiro Pro Ignition Wire Set 73237 Universal Fit 90 Degree Boot 4 Cylinder Red Available For Street Or Track Applications Spiro Wound With Stainless Steel Wire Covered