NGK G-Power LTR5GP Platinum Spark Plugs for C7 Corvette Grand Sport
NGK G-Power LTR5GP platinum spark plugs, stock number 5019, fit the 2017–2019 C7 Corvette Grand Sport with its stock LT1 6.2L naturally aspirated V8. Each order includes eight spark plugs supplied as two manufacturer four-packs, providing a complete set for V8 spark-plug replacement.
The Grand Sport combines its wide-body chassis with a naturally aspirated LT1, so engine identity is the right starting point for plug selection. G-Power’s fine platinum tip supports ignitability, while its copper core carries heat away from the firing end. The complete set gives you matching platinum firing tips throughout the engine for a planned ignition refresh. Service all eight cylinders together, then inspect the separate plug wires and boots before reconnecting them.
Product Details
- Product identity: NGK 5019, design code LTR5GP, G-Power platinum spark plugs.
- Center electrode: Single platinum tip with a 0.6 mm fine-wire design.
- Supporting construction: Trapezoidal ground electrode, 98% pure copper core and high-grade alumina silicate ceramic insulation.
- Service quantity: Eight matching plugs; two four-packs supplied per order.
- Included components: Spark plugs only. Ignition coils, plug wires and installation tools are separate.
Benefits
- Focused ignition: The fine platinum tip supports ignitability with a concentrated spark.
- Less flame quenching: The ground-electrode shape limits interference with the developing flame.
- Thermal management: The copper core helps dissipate firing-end heat; the ceramic electrically insulates the plug.
- One complete service order: The eight-plug quantity avoids accidentally buying only half the set your Corvette needs.
Important Notes
- Grand Sport identity: Match the 2017–2019 model years and 6.2L LT1. Confirm the model year and engine code together before ordering, whether your car is a coupe or convertible.
- Chassis-package check: The C7 Grand Sport retains its naturally aspirated LT1 with the factory Z07 chassis package. Use the engine’s current specification when planning ignition service, particularly if engine modifications have been made.
- Application gap: Use 0.040 inch (1.02 mm) for this stock LT1 fitment. Measure every plug before installation; do not assume its supplied preset matches the required setting.
- Fine-wire care: Check with a round-wire or pin gauge. Move only the ground electrode when adjusting; never lever against the platinum tip or ceramic. If the required change exceeds 0.008 inch from the supplied gap, consult NGK before proceeding.
- Installation: Follow the vehicle’s tightening specification on clean, dry threads without anti-seize. Inspect each plug for damage and check that the wire boots are securely seated after installation.
CORVETTE COMPATIBILITY
- 2017–2019 C7 Corvette Grand Sport
- Coupe and convertible
- LT1 6.2L naturally aspirated V8, stock configuration
- Seven-speed manual or eight-speed automatic
Why Buy from Custom Corvette Accessories?
At Custom Corvette Accessories, we’re Corvette owners ourselves and offer one-on-one customer service. If you need help choosing NGK 5019 LTR5GP G-Power platinum spark plugs for your C7 Corvette Grand Sport, contact us for personal assistance with your car’s fitment and the eight-plug order.
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✅ Custom or backordered items ship as soon as available.
