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Granatelli Motor Sports

Granatelli GM Small Block 5.0L & 5.7L Vortec 0-Ohm 8mm Blue Spark Plug Wires – 28-1275S

Granatelli GM Small Block 5.0L & 5.7L Vortec 0-Ohm 8mm Blue Spark Plug Wires – 28-1275S

Regular price $176.56 USD
Regular price $185.85 USD Sale price $176.56 USD
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Your classic GM small-block may be old-school, but its ignition system doesn't have to be. Granatelli 0-Ohm Performance Wires help put more of your ignition system's available energy directly at the spark plug for stronger, more consistent performance.

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The Granatelli 28-1275S High-Performance Spark Plug Wire Set is designed for compatible GM 5.0L/305 and 5.7L/350 V8 applications, including many Vortec-powered Chevrolet and GMC trucks, SUVs and vans.

Featuring Granatelli's 0-Ohm resistance technology, durable 8mm blue wire construction, silicone boots and RFI/EMI suppression, this complete V8 wire set delivers a serious ignition upgrade while retaining straightforward OEM-style installation.

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WAKE UP YOUR GM 350.

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0-OHM PERFORMANCE IGNITION TECHNOLOGY

Designed to deliver more of your ignition system's available energy directly to the spark plug for strong spark delivery, improved response and dependable performance.

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Key Features

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  • 0-Ohm resistance technology for maximum available ignition-energy transfer
  • 8mm blue performance spark plug wires
  • Durable silicone spark plug boots
  • Fiberglass-reinforced wire construction for added durability
  • Stainless conductor for efficient spark-energy transfer
  • Spiral-core construction
  • RFI & EMI suppression helps control electrical interference
  • Secure snap-lock spark plug terminals
  • Designed for compatible GM 5.0L/305 and 5.7L/350 V8 engines
  • Excellent for stock replacement and performance applications
  • Works well with headers and upgraded ignition systems when properly routed
  • Direct OEM-style replacement on compatible applications
  • Complete V8 spark plug wire set
  • Made in the USA
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Simple Bolt-On Ignition Upgrade: No LS swap, coil conversion or complicated ignition modification is required. These wires are designed as a direct replacement for compatible distributor-equipped GM applications, making them an easy upgrade for trucks, SUVs, vans and performance builds.

Put More Spark Energy at the Plug

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Conventional resistance-type ignition wires consume some of the energy traveling between the ignition system and spark plug. Granatelli's patented 0-Ohm technology is engineered to minimize that resistance while controlling electrical interference, helping deliver strong and consistent ignition performance throughout the RPM range.

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Built for Real-World Small-Block Performance

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Whether you're maintaining a daily-driven Vortec truck, upgrading a GM 350-powered SUV or building a street-performance small-block, the combination of 8mm construction, silicone boots and fiberglass reinforcement is designed to withstand the heat, vibration and demanding conditions found under the hood.

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Designed for GM Small-Block V8 Applications

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Part #28-1275S is designed for compatible Chevrolet, GMC and Cadillac applications using GM's traditional 5.0L/305 and 5.7L/350 V8 ignition configurations.

5.0L / 305 5.7L / 350 Vortec V8 Chevrolet GMC Cadillac
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Common Applications

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Application Engine
Chevrolet / GMC Trucks Select 5.0L / 305 & 5.7L / 350 V8 applications
Chevrolet / GMC Suburban Select 5.7L / 350 Vortec applications
Chevrolet Tahoe / GMC Yukon Select 5.7L / 350 Vortec applications
GMC Savana Select 5.0L / 305 & 5.7L / 350 V8 applications
Cadillac Escalade Select 5.7L / 350 V8 applications
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Important Fitment Notice: Part #28-1275S is for compatible GM 5.0L/305 and 5.7L/350 traditional small-block/Vortec applications. It is not an LS or LT engine spark plug wire set. Always verify year, make, model, engine and ignition configuration before ordering.

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Heat Notice: High-performance ignition-wire construction provides increased durability, but proper clearance from headers and other extremely hot exhaust components is still recommended whenever possible.

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SKU: 28-1275S

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