NGK V Power Spark Plug UR4 (8 Pack) for CHEVROLET P20 1976-1984 5.7L/350

The NGK 6630 V-Power Spark Plug (UR4) is designed to deliver consistent ignition, better fuel efficiency, and long-lasting performance in older vehicles and small engines. With a V-groove center electrode and solid copper core, it promotes efficient flame propagation, reduces fouling, and ensures smooth engine operation.

Features & Benefits:

🔧 V-groove electrode improves combustion and ignitability
🔧 Copper core provides excellent thermal conductivity
🔧 Resists fouling for reliable performance over time
🔧 Pre-gapped for fast, hassle-free installation

Specifications:

Brand & Part Number: NGK 6630 (UR4)
Material: Nickel with Copper Core
Thread Size: 14mm
Reach: 19mm (0.75 in)
Hex Size: 13/16 in (20.8mm)
Heat Range: 4
Seat Type: Gasket
Resistor: No
Gap: 0.9mm (0.035 in)

Choose NGK UR4 V-Power for dependable starts, smooth combustion, and trusted performance in classic and small engine applications—order today!

Engine V8, Engine Size 5.7L/350Engine Family Chevy small block Gen IShorty Spark Plug: No. Resistor: Yes. Manufacturer Heat Range: 4. Electrode Tip Material: Nickel alloy. Electrode Core Material: Copper. Insulator Type: Projected. Spark Plug Thread Size: 14mm. Spark Plug Reach: 0.460 in. Spark Plug Seat Style: Tapered Wrench Diameter: 5/8 in. Ground Strap Quantity: OneSold In 8 Pack