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2. Exhaust gas recirculation - Wikipedia

   en.wikipedia.org/wiki/Exhaust_gas_recirculation

   EGR valve the top of box on top of the inlet manifold of a Saab H engine in a 1987 Saab 90. In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NO x) emissions reduction technique used in petrol/gasoline, diesel engines and some hydrogen engines. [1]

3. Chevrolet 90° V6 engine - Wikipedia

   en.wikipedia.org/wiki/Chevrolet_90°_V6_engine

   The 4.3 L (262 cu in) V6 has a 4 in × 3.48 in (101.6 mm × 88.4 mm) bore and stroke, identical to the 350 cu in (5.7 L) Chevrolet V8 engine. To create a true even-fire engine, Chevrolet produced a crankshaft with 30-degree offsets between each rod pin. Consequently, rod journals were increased to a larger 2 + 1 ⁄ 4 inches (57.2 mm).

4. GM Ecotec engine - Wikipedia

   en.wikipedia.org/wiki/GM_Ecotec_engine

   The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.2 and 2.5 litres.Confusingly, the Ecotec name was also applied to both the Buick V6 Engine when used in Holden Vehicles, as well as the final DOHC derivatives of the previous GM Family II engine; the architecture was substantially re-engineered for this new Ecotec ...

5. List of GM engines - Wikipedia

   en.wikipedia.org/wiki/List_of_GM_engines

   1977–2013 Chevrolet 90° V6 engine (derived from the Chevrolet Small-Block" V8; now marketed as GM Vortec V6 or Vortec 4300 or EcoTec3 V6) 1979–2010 Chevrolet 60-Degree V6; 1994–2005 Opel 54-Degree L81 V6 (used in the Saturn Vue, Cadillac Catera and Saturn L series) 1995–present Suzuki H (used in several models built for GM by Suzuki)

6. General Motors 60° V6 engine - Wikipedia

   en.wikipedia.org/wiki/General_Motors_60°_V6_engine

   The General Motors 60° V6 engine family is a series of 60° V6 engines produced for both longitudinal and transverse applications. All of these engines are 12-valve cam-in-block or overhead valve engines, except for the LQ1 which uses 24 valves driven by dual overhead cams. These engines vary in displacement between 2.8 and 3.4 litres (2,837 ...

7. GM High Value engine - Wikipedia

   en.wikipedia.org/wiki/GM_High_Value_engine

   The High Value engine family from General Motors is a group of cam-in-block or overhead valve V6 engines.These engines feature cast iron blocks and aluminum heads, and use the same 60° vee bank as the 60° V6 family they are based on, but the new 99 mm (3.90 in) bore required offsetting the bores by 1.5 mm (0.059 in) away from the engine center line.