NGK G-Power TR6GP Platinum Spark Plugs for C6 Corvette 427 Convertible
NGK G-Power TR6GP platinum spark plugs, stock number 5141, fit the 2013 C6 Corvette 427 Convertible with its stock LS7 7.0L naturally aspirated V8. This offer includes eight spark plugs supplied as two manufacturer packs of four, enough for a complete V8 spark-plug replacement.
Keep the 427 Convertible’s ignition service focused on its naturally aspirated 7.0L LS7. G-Power uses a fine platinum center tip and a shaped ground electrode to support ignitability. Eight matching plugs let you service the whole engine with one design while retaining its existing coil-and-wire arrangement; those separate components can be inspected during the same job.
Product Details
- Plug identity: NGK 5141, design code TR6GP, G-Power platinum spark plugs.
- Firing-end construction: Single platinum center tip, 0.6 mm fine-wire center electrode and trapezoidal ground electrode.
- Internal materials: 98% pure copper core with high-grade alumina silicate ceramic insulation.
- Quantity: One order supplies eight matching plugs in two four-packs.
- Included: Spark plugs only; plug wires, ignition coils and installation tools are separate.
Benefits
- Focused sparking: The fine platinum tip supports ignitability during combustion.
- Less flame quenching: The shaped ground electrode helps limit interference with the developing flame.
- Heat dissipation: A copper core helps carry firing-end heat away, while the ceramic provides electrical insulation.
- Complete service quantity: Replace all eight plugs together without calculating how many four-packs your V8 needs.
Important Notes
- Collector Edition identity: Choose this set for the 2013 427 Convertible with its factory LS7 and six-speed manual. Confirm the Collector Edition model identity and original 7.0L engine together when ordering your replacement plugs.
- Appearance-package choice: The 427 Heritage or 60th Anniversary appearance treatment does not change the stock LS7 plug selection. Match the engine configuration and service requirements, regardless of the car’s paint or trim package.
- Application gap: Use 0.040 inch (1.02 mm) for this stock LS7 fitment. Measure every plug before installation; its supplied preset is not assumed to equal the required engine setting.
- Fine-wire care: Use a round-wire or pin gauge. Adjust only the ground electrode without levering against the platinum center tip or ceramic.
- Installation: Use clean, dry threads without anti-seize and follow the vehicle’s tightening specification. Allow the engine to cool before starting the service. Inspect the ceramic and electrodes for damage, and confirm each wire boot is securely seated afterward.
CORVETTE COMPATIBILITY
- 2013 C6 Corvette 427 Convertible
- Convertible
- LS7 7.0L naturally aspirated V8, stock configuration
- Six-speed manual transmission
Why Buy from Custom Corvette Accessories?
At Custom Corvette Accessories, we’re Corvette owners ourselves, and we offer one-on-one customer service to help you choose parts for your car. Have a question about NGK 5141 TR6GP G-Power platinum spark plugs for your C6 Corvette 427 Convertible? Contact us for personal help before you order.
✅ In-stock items ship in 1–2 business days via Standard Ground.
✅ Free shipping items are available in the Continental US only.
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✅ Custom or backordered items ship as soon as available.
