The Chevy Blazer was first introduced to the market in 1983 and was offered primarily in the 2 door model. The S series Blazer was so named because it was based on the Chevrolet S10 pickup. The popular suv was manufactured from 1983 until 2005. The first models used the GM 2.0L OHV 4 cylinder engine.
Offered as an option, the 2.8L V6 engine was also offered in the Jeep Cherokee until 1987. This engine upgrade provided 110hp and despite the larger size engine, the fuel economy on the highway increased dramatically with the increased horsepower.
Chevrolet offered a 1.9L diesel engine available in California to meet the stricter emissions laws of the state. These diesel engines were discontinued after 1985 and Chevrolet introduced a larger 2.5L v6 engine. Better fuel economy was acheived with the introduction of the throttle body fuel injection system.
In 1995 the Chevy Blazer lost the S10 prefix, the interior options, the exterior trim package were all upgraged and was offered in a 4 door model to the public. Previously 4 door models had only been sold as fleet models. The engine was also upgraded in 1995 to the 4.3L Vortec 4300 V6 engine.
The 4.3L was the last engine upgrade seen in the Blazer and was the one used from 1995 until production of the model ceased in 2005.