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2. General Motors Vortec engine - Wikipedia

   en.wikipedia.org/wiki/General_Motors_Vortec_engine

   Vortec is a trademarked name for a line of gasoline engines for General Motors trucks. The name first appeared in an advertisement for the 1985 model year 4.3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber , creating a better air / fuel atomization. [ 1 ]

3. General Motors Atlas engine - Wikipedia

   en.wikipedia.org/wiki/General_Motors_Atlas_engine

   The LLV (also called Vortec 2900) is a 2.9 L; 178.3 cu in (2,921 cc) straight-4 DOHC engine produced between 2007 and 2012, with a 95.5 mm × 102 mm (3.76 in × 4.02 in) bore and a stroke. It replaced the LK5 and produced 185 hp (138 kW) at 5,600 rpm and 190 lb⋅ft (258 N⋅m) of torque at 2,800 rpm.

4. General Motors LS-based small-block engine - Wikipedia

   en.wikipedia.org/wiki/General_Motors_LS-based...

   The Vortec 5300 L33 (VIN code "B") is an aluminum block version of the LM7, marketed as the Vortec 5300 HO. Instead of the LM7's dished pistons, the L33 uses the 4.8L's flat top pistons. It also uses 799 cylinder heads, identical to 243 castings found on LS6s and LS2s, lacking only LS6-spec valve springs and lightweight valves.

5. Chevrolet small-block engine (first- and second-generation)

   en.wikipedia.org/wiki/Chevrolet_small-block...

   The Vortec 5700 L31 (VIN code "R") is a 5.7L V8 truck engine. It is Chevrolet's last production first-generation small-block. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but lacking the LT1's reverse-flow cooling and higher compression.

6. Chevrolet big-block engine - Wikipedia

   en.wikipedia.org/wiki/Chevrolet_big-block_engine

   The firing order of older big-block engines is 1-8-4-3-6-5-7-2 [63] while Vortec 8100's firing order is 1-8-7-2-6-5-4-3. Other upgrades of Vortec 8100 include a new 18-bolt head bolt pattern, longer connecting rods, different symmetrical intake ports, different oil pan rails, and the use of metric threads throughout the engine.

7. Chevrolet 90° V6 engine - Wikipedia

   en.wikipedia.org/wiki/Chevrolet_90°_V6_engine

   The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3.3 L) as the base engine for the all new 1978 Chevrolet Malibu.The original engine family was phased out in early 2014, with its final use as the 4.3 L (262 cu in) V6 engine used in Chevrolet and GMC trucks and vans.