1978 GMC G-Series Spark Plug Wires, Ignition Wires & Components

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    • (0 reviews)
      # 603735178
      GMC G-Series 1978, Professional™ Spark Plug Wire Set by ACDelco®. Built to match the Original Equipment in length and fit, ACDelco Professional Ignition Wire Sets also offer a performance advantage over many aftermarket products.
      Wire conductor, wire length and diameter help provide maximum spark delivery and protectionSpark plug distributor boot shape and materials provide proper fit, installation and water-tight seal
      $22.39 - $26.80
    • (0 reviews)
      # 207456191
      GMC G-Series 1978, Spark Plug Wire Set by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $9.00 - $22.01
    • (0 reviews)
      # 99006212
      GMC G-Series 1978, Pro Series™ Spark Plug Wire Set by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and...
      The design of this set strictly follows the original specifications set by OEManufactured using OE-Style spark plug and distributor boots
      $12.35 - $13.90
    • (0 reviews)
      # 85539696
      GMC G-Series 1978, Spark Plug Wire Set by Denso®. Complete Ignition Wire Set. Designed with precision and functionality in mind this product ensures ultimate durability and provides the highest level of quality. This product is...
      Improved coil efficiency reduces the need to generate high voltageDriving circuit is integrated into top of coil
      $18.63 - $21.71
    • (0 reviews)
      # mpn2859936156
      GMC G-Series 6.6L 1978, Spark Plug Wire Holder by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...
      Ignition Wire SeparatorRetainer ring for 8 cylinder GM HEI engines
      $3.41
    • (0 reviews)
      # mpn4252113717
      GMC G-Series 1978, TechSmart™ Ignition Coil Assembly Wiring Harness by Standard®. Designed utilizing the latest technology, this product by Standard features premium quality and will perform better than advertised. Perfect for your...
      Includes new tachometer and power lead to replace worn or damaged pigtails and restore proper tachometer function on vehicles with HEI distributorsAll TechSmart® Ignition Coil Wiring Harness repair kits are designed to prevent failure of the coils due to corroded connection between terminals.
      $9.19
    • (0 reviews)
      # 906200014
      GMC G-Series 1978 409 Pro Race™ Ignition Wire Set by Taylor Cable®. Taylor’s biggest ignition wire is available in red or blue, in custom sets designed to fit muscle cars, performance cars, sports, compacts and truck applications....
      Available For Street Or Track ApplicationsContinuous Heat Protection Up To 600 deg. F
      $125.30 - $131.31
    • (0 reviews)
      # mpn2126956
      GMC G-Series 5.0L / 5.7L 1978 Extreme Service™ Extreme Service Wire Set by Taylor Cable®. These .409" / 10.4mm diameter high-performance custom-fit ignition wires are built for street or track applications. Guarantee your engine a fat...
      100% silicone Pro-BootDouble spring locking terminal
      $196.45
    • (0 reviews)
      # mpn2118969
      GMC G-Series 5.0L / 5.7L / 6.6L 1978 High Energy™ Ignition Wire Set by Taylor Cable®. These wires are a top choice for either street or race applications. Each wire is cut to length and terminated with Taylor’s low-profile silicone...
      Available For Street Or Track ApplicationsHigh Temperature and Oil Resistant Wire Insulation
      $31.33
    • (0 reviews)
      # 906118767
      GMC G-Series 1978 Spiro-Pro™ Ignition Wire Set by Taylor Cable®. These plug wires are the top choice of racers and street enthusiasts for their high performance at an affordable price. With two layers of 100% silicone jacketing and...
      8mm outer insulationSpiro-Pro wire with conductive spiral-wound core
      $64.27 - $82.00
    • (0 reviews)
      # 87800353
      GMC G-Series 1978 Street Thunder™ Ignition Wire Set by Taylor Cable®. Get great performance at an extremely affordable price with Taylor’s Street Thunder ignition wires. These 8mm wires deliver all of the performance in your street...
      Low-resistance Kevlar helically spiral wound core conductor500 ohms resistance for EMI and RFI suppression
      $30.66 - $43.87
    • (0 reviews)
      # 906286076
      GMC G-Series 5.0L / 5.7L / 6.6L 1978 Street™ Street Ignition Wire Set by Taylor Cable®. Taylor's 8mm Spiro-Pro wire and stainless braided covering with polished aluminum boot protectors will provide an amazing accent in your engine...
      8mm silicone wire100% Silicone boots w/SS dual-spring connectors
      $88.24 - $194.85
    • (0 reviews)
      # 906274960
      GMC G-Series 5.0L / 5.7L / 6.6L 1978 ThunderVolt™ Performance Performance Ignition Wire Set by Taylor Cable®. Gain horsepower and torque with Taylor’s Dyno-proven ThunderVolt racing plug wire sets. Low resistance for healthy spark...
      Exclusive copper/nickel alloy bonded by a conductive acrylic coverFerrite spiral-wound core provides low resistance for optimum RFI and RMI suppression
      +2
      $69.27 - $71.42
    • (0 reviews)
      # 87251340
      GMC G-Series 1978 Street-Fire™ Spark Plug Wire Set by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $40.66 - $44.96
    • (0 reviews)
      # 86809183
      GMC G-Series 1978 Super Conductor Spark Plug Wire Set by MSD®. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $88.89 - $112.95
    • (0 reviews)
      # 89586890
      GMC G-Series 1978 300+™ Spark Plug Race Wire Set Over Valve Cover by Accel®. These Accel 300+ wire sets are custom tailored for race engines and their builders. The oversize 8.8mm wire is rated for 600 degrees F and 60kV. Resists...
      150 ohms per foot8.8mm oversize silicone jacket
      $109.95
    • (0 reviews)
      # 906263120
      GMC G-Series 1978 Armor Shield Spark Plug Wire Set by Accel®. Accel Armor Shield wires feature a metallic braided wire that delivers maximum spark energy while providing a Pro Street look. Armor Shield Wire sets enhance the appearance...
      8mm, 450°F-ratedPro-street applications
      $86.54 - $89.79
    • (0 reviews)
      # 209759377
      GMC G-Series 1978 Prestolite ProConnect™ Spark Plug Wire Set by Accel®. ProConnect ignition wire sets meet or exceed OE/OES specifications, performance and quality. These cables match the original color and are designed to provide...
      Carbon impregnated fiberglass coreFiberglass braid for added strength
      $30.02 - $33.24
    • (0 reviews)
      # 906174684
      GMC G-Series 5.0L / 5.7L / 6.6L 1978 Spark Plug Wire Set by Accel®. These Accel 8.8mm wires feature a carbon/graphite core that virtually eliminate RFI noise while providing maximum conductivity for ultimate performance in any race or...
      8000, 8800, & 8900 Series, 550°F-rated8.8mm yellow high temperature silicone jacket
      $83.30 - $93.03
    • (0 reviews)
      # 89586909
      GMC G-Series 1978 Super Stock™ Spark Plug Wire Kit Under Exhaust Manifold by Accel®. With Retention Nipple. These Accel Super Stock wire sets are a true performance upgrade replacement for OE types. Efficient delivery of spark energy...
      8 mm SpiralStainless Steel Spark Plug Terminals
      +1
      $52.99 - $59.48
    • (0 reviews)
      # mpn2270595
      GMC G-Series 5.0L / 5.7L / 6.6L 1978 Super Stock™ Spark Plug Wire Set Over Valve Cover by Accel®. These Accel Super Stock wire sets are a true performance upgrade replacement for OE types. Efficient delivery of spark energy for a good...
      7 mm And 8 mm High Gloss Silicone Jacket450 F Rated Silicone Jacket
      $40.01
    • (0 reviews)
      # 987615537
      GMC G-Series 5.0L / 5.7L / 6.6L 1978, Smoothie™ Horizontal Wire Loom Kit by Made 4 You®. Lays the wires out parallel to the valve cover. This top-grade product is expertly made in compliance with stringent industry standards to offer...
      Unsurpassed QualityPrecision molded 6-6 Zytel Nylon will not melt, fade, distort, stain, or discolor, under normal use
      +1
      $34.95 - $41.07
    • (0 reviews)
      # 987603606
      GMC G-Series 5.0L / 5.7L / 6.6L 1978, Smoothie™ Vertical Wire Loom Kit by Made 4 You®. Made 4 You most popular style for mounting on valve covers, allowing the separators to be positioned vertically instead of horizontally. Adjustable...
      Unsurpassed QualityPrecision molded 6-6 Zytel Nylon will not melt, fade, distort, stain, or discolor, under normal use
      +1
      $34.95 - $41.07
    • (0 reviews)
      # mpn1593915686
      GMC G-Series 5.0L / 5.7L / 6.6L 1978 SST™ Shielded Street Ignition Wire Set by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality....
      Stainless Steel Braided CoveringPolished Aluminum Boot Protectors
      $121.86
    • (0 reviews)
      # 819660902
      GMC G-Series 1978 MPG+™ Spark Plug Wires by Granatelli Motor Sports®. Granatelli O ohm wires are patent protected by United States Patent number 7,185,622. This patent covers our unique method of producing ignition wires of extremely...
      Increases mileage 15%Direct OEM replacement, exceeds OEM specifications, OBD-II computer safe
      $152.00 - $187.15
    • (1 review)
      # 1020865032
      GMC G-Series 1978 Performance Spark Plug Wires by Granatelli Motor Sports®. Granatelli O ohm wires are patent protected by United States Patent number 7,185,622. This patent covers our unique method of producing ignition wires of...
      Direct OEM replacement, exceeds OEM specifications, OBD-II computer safeIncrease power to the spark plug up to 400% over stock
      $152.00 - $187.15
    • (0 reviews)
      # 960769635
      GMC G-Series 5.0L / 5.7L / 6.6L With Chevy Small Block Engine 1978 Spark Plug Wire Set by Edelbrock®. Designed utilizing the latest technology, this product by Edelbrock features premium quality and will perform better than advertised....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $42.95 - $65.95
    • (0 reviews)
      # 987603543
      Smoothie™ Bowtie Wire Loom Kit by Made 4 You®. For Center Bolt Valve Covers. Wire Diameter: 7-8 mm. Designed for the true Chevy enthusiast! Licensed by General Motors, Made 4 You kit provides a unique option for supporting and...
      Unsurpassed QualityPrecision molded 6-6 Zytel Nylon will not melt, fade, distort, stain, or discolor, under normal use
      $43.34
    • (0 reviews)
      # 960711733
      GMC G-Series 1978 Armor Shield™ Armor Shield Spark Plug Wire Set by Accel®. Accel Armor Shield wires feature a metallic braided wire that delivers maximum spark energy while providing a Pro Street look. Armor Shield Wire sets enhance...
      8.8 mm Carbon GraphiteBraided Custom Hot Rod Look
      $86.68
    • (0 reviews)
      # mpn4511860761
      GMC G-Series 4.1L / 4.8L 1978 Endurance Plus™ Wire Set by Accel®. Endurance Plus quality ignition wire sets are ready to install for most popular engine applications. Get these top-notch spark plug wires to achieve maximum performance...
      Quality retail aftermarket wire setsMaximum voltage and starting power
      $15.50
    • (0 reviews)
      # mpn4515299650
      GMC G-Series 5.0L / 5.7L / 6.6L 1978, Smoothie™ Stac-Pak™ Wire Loom Kit by Made 4 You®. Wire Diameter: 7-8 mm. Color: Black. Smoothie Separator Kits for most V-8's. Designed for tight clearances and for vehicles running magnetos or...
      Unsurpassed QualityPrecision molded 6-6 Zytel Nylon will not melt, fade, distort, stain, or discolor, under normal use
      $34.95
    • (0 reviews)
      # 1027870255
      GMC G-Series 1978, Spark Plug Wire Set by NGK®. NGK Wire Sets are built to meet stringent OEM tolerances for a variety of vehicles. They utilize a construction method known as "variable pitch" wire winding to create resistance to radio...
      Superior firing and fuel savingsOutstanding durability
      $23.14 - $26.92


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