Information: - The Volvo Group (legally Aktiebolaget Volvo, shortened to AB Volvo) (stylised as VOLVO) is a Swedish multinational manufacturing company headquartered in Gothenburg. While its core activity is the production, distribution and sale of trucks, buses and construction equipment, Volvo also supplies marine and industrial drive systems and financial services. Although the two firms are still often conflated, Volvo Cars, also based in Gothenburg, is owned by Geely Holding Group a Chinese multinational automotive manufacturing company and has been a totally separate company since it was sold to the Ford Motor Company in 1999. The companies still share the Volvo logo and co-operate in running the Volvo Museum. - Volvo Car Corporation (stylized as VOLVO) is a Swedish automobile manufacturer established in 1927 and headquartered in Gothenburg, Sweden, where it operates out of the VAK building. It is a wholly owned subsidiary of Zhejiang Geely Holding Group of China. - The Volvo 700 series is a range of mid-size luxury cars produced by the Swedish manufacturer Volvo Cars from 1982 to 1992. The 700 series was introduced in 1982 with the luxurious 760, followed two years later by the lower priced 740 which capitalized on the prestige attained by the very similar 760. The 700 series was then gradually replaced, beginning in 1990, by the 900 series. The 700, designed by Jan Wilsgaard, was originally to have been a replacement for the 200 series, but production of that model continued until the early nineties. The expensive 780, a Bertone-designed coupe version, entered production in 1986 and departed without a direct successor only four years later. - A crossflow cylinder head is a cylinder head that features the intake and exhaust ports on opposite sides. The gases can be thought to flow across the head. This is in contrast to reverse-flow cylinder head designs that have the ports on the same side. Crossflow heads use overhead valves, but these can be actuated by camshafts that are either in the cylinder block, with actuation by push rods and rockers, or by one or more overhead camshafts. - The Volvo B21 was a slant straight - 4 engine first used in the Volvo 200 series , meant to replace the B20 . The B21 and all derived engines are often referred to as red block engines for the red paint applied to the block . The primary differences when compared to the B20 was the switch to a SOHC in place of the older pushrod configuration , and an aluminum crossflow cylinder head versus the iron head of the B20 . - In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket. In most engines, the head also provides space for the passages that feed air and fuel to the cylinder, and that allow the exhaust to escape. The head can also be a place to mount the valves, spark plugs, and fuel injectors. - The Volvo 200 series was a range of executive cars produced by Volvo Cars from 1974 to 1993, with more than 2.8 million units sold worldwide. Like the Volvo 140, it was designed by Jan Wilsgaard. It overlapped production of the Volvo 700 series introduced in 1982. As the 240 remained popular, only the 260 was displaced by the 700 series which Volvo marketed alongside the 240 for another decade. The 700 series was replaced a year before the 240 was discontinued. Production ended on 14 May 1993 after nearly 20 years. - Jan Wilsgaard (23 January 1930 6 August 2016) was the Chief Designer at Volvo Cars from 19501990, having studied at the Gothenburg School of Applied Arts (now HDK, Hogskolan for Design och Konsthantverk, at the University of Gothenburg) before joining Volvo when co-founder Assar Gabrielsson still headed the company. - Overhead camshaft, commonly abbreviated to OHC, is a valvetrain configuration which places the camshaft of an internal combustion engine of the reciprocating type within the cylinder heads ('above' the pistons and combustion chambers) and drives the valves or lifters in a more direct manner compared to overhead valves (OHV) and pushrods. - In engine technology, a reverse-flow or non-crossflow cylinder head is one that locates the intake and exhaust ports on the same side of the engine. The gases can be thought to enter the cylinder head and then change direction in order to exit the head. This is in contrast to the crossflow cylinder head design. - Executive car is a British term for an automobile larger than a large family car. In official use, the term is adopted by Euro NCAP, a European organization founded to test car safety. After reading the paragraphs above, we are interested in knowing the entity with which 'volvo redblock engine' exhibits the relationship of 'instance of'. Find the answer from the choices below. Choices: - august - automobile - change - combustion - combustion engine - corporation - design - engine - family - family car - four - group - head - internal combustion engine - january - logo - manufacturer - manufacturing - may - model - official - order - organization - range - running - series - side - size - technology - term - two - year
Answer:
internal combustion engine