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What engine is in a 1990 Chevy Blazer?

The 1990 Chevy Blazer was equipped with a variety of engine options, but the most common was the 4.3-liter V6 engine. This engine was part of Chevrolet's venerable Vortec engine family and provided a good balance of power and fuel efficiency for the Blazer.


Engine Specifications


The 4.3-liter V6 engine in the 1990 Chevy Blazer had the following key specifications:



  • Displacement: 4.3 liters (262 cubic inches)

  • Cylinder configuration: V6

  • Horsepower: 165 hp at 4,000 rpm

  • Torque: 235 lb-ft at 2,400 rpm

  • Fuel system: Throttle-body fuel injection

  • Transmission: 4-speed automatic or 5-speed manual


This engine was known for its reliability, durability, and relatively good fuel economy for a V6 of its size and power output. It was a popular choice for the Blazer and other Chevrolet trucks and SUVs of the era.


Engine History and Development


The 4.3-liter V6 engine used in the 1990 Chevy Blazer was part of Chevrolet's Vortec engine family, which was introduced in the late 1980s. The Vortec engines were designed to provide more power and efficiency compared to the previous generation of Chevrolet V6 engines.


The 4.3-liter V6 was based on the 5.7-liter V8 engine used in many Chevrolet vehicles, with two cylinders removed. This allowed Chevrolet to leverage the existing V8 engine design and manufacturing processes to produce a more compact and efficient V6 engine.


Over the years, the 4.3-liter V6 Vortec engine underwent various refinements and upgrades to improve its performance, fuel economy, and emissions compliance. It remained a popular choice in Chevrolet trucks and SUVs well into the 2000s.

What is the best year for the Chevy Blazer?


On the other hand, there are also some excellent options for the Chevy Blazer. We recommend the 2006, 2008, 2009, 2021, and 2022 models if you're looking for the ideal years for this vehicle. They have the fewest customer complaints and will ensure you have an excellent driving experience every single time.



What Blazer had a V8?


The K5 Blazer was fitted with a 250 cu in (4.1 L) inline-six as standard through 1984. Available engines included a 292 cu in (4.8 L) inline-six, small-block V8s of 305, 307, 350, or 400 cubic inches (5.0, 5.0, 5.7, and 6.6 liters), and a 6.2 L Detroit Diesel V8.



What is a 1990 Chevy Blazer worth?


The value of a used 1990 Chevrolet Blazer ranges from $1,484 to $8,071, based on vehicle condition, mileage, and options.



What is the most common problem on a Chevy Blazer?


Its common problems include fuel pump and transmission failure, distributor defects, and an inaccurate fuel gauge. Preventative maintenance will keep your Blazer running for years to come.



What engine was in the 1990 Chevy Blazer?


Engine

Base engine size5.7 L
CylindersV8
Base engine typeGas



Is the s10 Blazer 4.3 Vortec?


This Mid-sized SUV has a 4.3L V6 known as the Vortec V6. It has 190 HP at 5500 RPM while the real engine produces the same power at 4400 RPM and 250 ft-lbs of torque at 2700 RPM while the real one has it at 2800 RPM.



How do I know what Chevy engine I have?


Stamped Numbers are a set of numbers literally stamped into the block. These numbers are stamped into a machined pad in front of the passenger side cylinder head – more than not it's covered up by the alternator. These numbers will tell you where the engine was assembled, production date, and the suffix code.



What year did the 4.3 Vortec come out?


1985
The 4.3 L (262 cu in) V6 is the last and most successful engine in the Chevrolet 90° V6 engine family. This engine was introduced in 1985 as a replacement for the 229 cu in (3.8 L) V6 in the full-size Chevrolet, the Chevrolet El Camino, and Chevrolet Monte Carlo.



What kind of engine does a Chevy Blazer have?


Power and Performance. The 2024 Chevy Blazer comes with a turbocharged 2.0-liter, four-cylinder engine that delivers 228 horsepower and 258 lb-ft of torque. You could also go with the available 3.6-liter V6 that generates 308 horsepower and 270 lb-ft of torque.



What engine does a 1990 Chevy have?


Engine

Base engine size4.3 L
CylindersV6
Base engine typeGas


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.