| Δ-engine Delta engine | |
| Manufacturer: | Hyundai Motor Company |
| Production: | 1998–2010 |
| Configuration: | V6 |
| Valvetrain: | DOHC 4 valves x cyl. |
| Block: | Aluminum |
| Head: | Aluminum |
| Fueltype: | Gasoline LPG |
| Fuelsystem: | Multi-port fuel injection |
| Coolingsystem: | Water-cooled |
| Idle: | 700±100 |
| Displacement: | 1998cc 2493cc 2656cc |
| Bore: | 842NaN2 86.7mm |
| Stroke: | 752NaN2 |
| Power: | 134- |
| Torque: | 18- |
| Successor: | Mu |
The Hyundai Delta family is the company's smaller V6 engine, ranging from 2493to. Both share the same 752NaN2 stroke and both are DOHC designs.
The G6BP (also called the 2.0 D) is the 1998cc version. Output is 134- at 6300 rpm and 18- at 4000 rpm.
The G6BW/G6BV (also called the 2.5 D) is the 2493cc version in a 90˚ configuration with an 842NaN2 bore. Output is 172- at 6,000 rpm and 22.9- at 4,000 rpm. It made its first appearance in the 1999 EF series Sonata.
The G6BA/G6BAX/G6BAY (also called the 2.7 D) is the larger 2656cc version available in either 60˚ or 90˚ configuration with an 86.7mm bore. Output is 167- at 6,000 rpm and 25- of torque at 4,000 rpm. It has an aluminum engine block and aluminum DOHC cylinder heads. It uses Multi-port fuel injection, has 4 valves per cylinder, and features powder metal-forged, fracture-split connecting rods.
The L6BA (also called the 2.7 LPG) is the LPG version of the 2.7L petrol engine. Output is 144- at 5,000 rpm and 23- of torque at 4,000 rpm.
Oullim Motors have developed a turbocharged version of the 2.7 L Delta engine in Oullim Spirra that can produce up to 6000NaN0 at 6,000 rpm.