The base 1 and 1LT models continue with the naturally-aspirated 2.5-litre I4 engine from the 2019 Blazer. Also returning for 2020 is the excellent 3.6-litre V6 as standard on the RS and Premier trims. For some, the 193 horsepower 2.5-litre engine lacked the oomph needed to back the Blazer’s rugged looks. The V6 is an excellent option, delivering 308 horsepower and 270 lb-ft of torque, but upgrading to the V6 meant shelling out for a higher trim.