page_title: Alfa Romeo 164
section_title: Engines
hierarchical_section_title: Alfa Romeo 164 / Engines
caption_attribution_description: Bristol Italian AutoMoto Festival
context_page_description: The Alfa Romeo 164 is a four-door executive saloon that was manufactured by the Italian automaker Alfa Romeo from 1987 to 1998 designed by Pininfarina. The predecessors of the 164 were the Alfa 90 and the luxurious Alfa 6. The 164 was superseded by the 166 in 1998, after a combined production total of 273,857 units.
context_section_description: The base 164 engine was the 2.0 L Twin Spark I4 engine with two spark plugs per cylinder. Apart from that, this engine was also notable for having a two-stage valve timing system (before Honda's VTEC), and an induction valve blade-type system, aimed at improving low-end torque.
  The block of the Twin Spark was the same 2.0 L that had been a part of Alfa's road and race car history since the 1930s. The engine featured fuel injection, controlled by a Bosch Motronic system as well as a chain-driven DOHC cylinder head, a single cooling fan and generator belt, improved reliability and reduced parasitic friction. The battery of all 164s was placed in the trunk to achieve a near 50:50 weight distribution.
  Next was a turbocharged 2.0 L 8-valve engine, derived from the Lancia Thema i.e. Turbo, and including an overboost feature. This was later replaced by a turbocharged 2.0 L V6, which was based on the 3.0 L engine and was fitted with a very sophisticated engine management system from Bosch.
  The top-of-the-line engine was the 3.0 L "Busso" V6 designed by Giuseppe Busso originally for the Alfa 6. Its 12-valve design was later upgraded to 24-valves for the new V6 models and, specifically, the QV and Q4.
  For Europe, there was also a turbodiesel version with an engine sourced from the Italian engine maker VM Motori. Rated at 92 kW (125 PS; 123 hp), with this engine, the 164 had a top speed of 200 km/h (124 mph).
caption: Alfa Romeo DOHC 24-valve V6 engine in 164 Q4
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