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The 3.9-liter 4B/4BT/4BTA Cummins is categorized under the B Engine family alongside the 5.9-liter 6B/6BT/6BTA Cummins diesel engines. The 3.9 is an inline four-cylinder, either naturally aspirated (4B) or turbodiesel (4BT/4BTA), which was popular for many step van applications including bread vans and other commercial vehicles. Additionally it ...
An early Cummins diesel in a 1950 Indianapolis 500 roadster Columbus main plant (1973) The Cummins Engine Company was founded in Columbus, Indiana on February 3, 1919, by mechanic Clessie Cummins and banker William Glanton Irwin. [3] The company focused on developing the diesel engine, which was invented 20 years earlier. Despite several well ...
GMC's own V8 was the 637-cubic-inch (10.4 L) unit, which was essentially a 478 V6 with two cylinders added. It shared the 5.125 in × 3.86 in (130.2 mm × 98.0 mm) bore and stroke and used a single camshaft. It was manufactured in gasoline and diesel versions, and was the largest-displacement production gasoline V8 ever made for highway trucks.
When introduced in May 2003, this 3.9-litre V8 was the highest power and highest torque diesel V8 fitted in any production car worldwide. This was the second 'new' V engine from Audi which utilises new technologies – including chain-driven overhead camshafts and ancillary units, following the 4.2 40-valve V8 petrol engine first seen in the B6 S4.
The 637-cubic-inch (10.4 L) 637 is essentially the V8 version of the 478, sharing the 5.125 in × 3.86 in (130.2 mm × 98.0 mm) bore and stroke and having a single camshaft. It was the largest-displacement production gasoline V8 ever made for highway trucks.
When introduced in May 2003, this 3.9 litre V8 was the highest power and highest torque diesel V8 fitted in any production car worldwide. This was the second 'new' V engine from Audi which utilises new technologies - including chain-driven overhead camshafts and ancillary units, following the 4.2 40-valve V8 petrol engine first seen in the B6 S4 .
However, 2003 also saw the introduction of the Dodge Ram SRT-10, a performance model meant to rival Ford's successful V8 powered F-150 SVT Lightning. The Viper engine (a 90-degree engine with odd firing order to obviate the need for a balance shaft) was improved during its production run, and produced as much as 477 kW (640 hp ; 649 PS ) in a ...
The V8 was dropped as an option in the final model in the Torana series, the UC released in 1978. There was a high performance version of the 308 engine built in 1973 by Repco for the Formula 5000 series. It was built as a 302ci (4940cc) engine using a slightly smaller bore than the production 308 (3.960" versus the 308's 4").