Kia Sportage 2.7l V6 G6BA engine
R24,500.00
The Kia Sportage 2.7L V6 (G6BA) is a naturally aspirated, 24-valve petrol engine from the Delta family. In the Sportage (specifically the JE/KM generation produced between 2004 and 2010), this engine served as the flagship powerplant, offering a smoother and more powerful alternative to the 2.0L four-cylinder models.
Technical Specifications
The G6BA is an “oversquare” engine, meaning the bore is larger than the stroke, which allows it to rev freely while maintaining a compact physical size.
| Feature | Specification |
|---|---|
| Displacement | 2,656 cc |
| Configuration | 60° V6, DOHC 24-Valve |
| Power Output | 129 kW (173 hp / 175 PS) @ 6,000 rpm |
| Maximum Torque | 241 Nm @ 4,000 rpm |
| Bore x Stroke | 86.7 mm x 75.0 mm |
| Compression Ratio | 10.0:1 |
Key Design Features
- Hybrid Drive System: This engine uses a combination of a timing belt and internal chains. The belt connects the crankshaft to the intake camshafts, while small internal chains link the intake cams to the exhaust cams inside the heads.
- Variable Intake System (VIS): To improve torque across the rev range, the intake manifold uses a butterfly valve to change the air’s path length based on engine load.
- All-Aluminium Construction: Both the engine block and cylinder heads are made of lightweight aluminium alloy, which helps maintain a better weight balance in the Sportage’s front-wheel-drive-based chassis.
- Hydraulic Lash Adjusters: Unlike many smaller Kia engines, the G6BA features hydraulic lifters, so there is no need for manual valve clearance adjustments.
Common Maintenance & Issues
- Timing Belt Criticality: This is an interference engine. If the timing belt snaps, the valves will hit the pistons. It is vital to replace the belt, tensioner, and idler pulleys every 90,000 km or 6 years.
- Rear Spark Plug Access: Because the engine is mounted transversely (sideways), the rear bank of three cylinders is tucked under the intake plenum. You must remove the upper intake manifold to change the rear spark plugs.
- Oil Leaks: The valve cover gaskets are a frequent leak point. Because the rear bank sits over the exhaust manifold, a leak often results in a burning oil smell inside the cabin.
- Fuel Consumption: The 2.7L V6 is famously thirsty in the Sportage, especially when paired with the 4-speed automatic and 4WD system, often averaging 12L–14L/100km in mixed driving.
- VIS Butterfly Screws: On older units, the screws holding the butterfly valves in the intake manifold can vibrate loose and be sucked into the engine. Many owners choose to check or thread-lock these during a major service.