GM has indefinitely delayed the release of one of the most advanced engines it has ever designed amid the current financial woes it is suffering.
The 4.5-litre Duramax diesel engine, which was intended for use in light-duty trucks such as the Chevrolet Silverado and GMC Sierra, featured unique cylinder heads that eliminate the intake and exhaust manifolds. It also had a lightweight block with advanced castings for the crankshaft-bearing journals and oil-circulation system.
“We have to make tough decisions right now,” said GM Powertrain spokeswoman Susan Garavaglia.
The eagerly awaited engine was due to have began production this time next year.