Chevrolet Close To Offering Aftermarket Electric Vehicle Conversion Packages
Chevrolet is set to unveil a new all-electric concept vehicle at the upcoming SEMA360 virtual trade show. The vehicle, a 1977 K5 Blazer, has been converted to all-electric propulsion with a prototype of the Electric Connect and Cruise package Chevrolet Performance plans to sell in the second half of 2021. The new K5 Blazer-E retains as much of the stock Blazer as possible and approximately 90 percent of the new parts installed for the eCrate package are factory components from the Chevrolet Bolt EV. To convert the 1977 K5 Blazer, the team first removed from the Blazer the original 175-horsepower 400 cubic-inch V-8, three-speed automatic, fuel system and exhaust. Then, the team installed a Bolt EV electric motor, delivering 200 horsepower and 266 lb-ft of torque, paired with a Chevrolet Performance electronically controlled four-speed automatic. The rest of the Blazer drivetrain remains untouched, including the transfer case, driveshaft and axles.Power is supplied by a 400-volt Bolt EV battery pack with 60 kilowatt-hours of usable energy installed in the cargo area. Using production controllers and wiring harnesses preserves many Bolt EV features, including shock protection, battery heating and cooling, battery-overcharge protection and even regenerative braking. The aftermarket components include an electric power steering kit, an electric pump providing vacuum to the stock brake system, and an electronic controller to drive inputs to the vintage Blazer gauges – such as displaying the battery’s state of charge on the original fuel gauge.
Chevrolet first previewed the eCrate conversion concept with the Chevrolet eCOPO Camaro in 2018, followed by the Chevrolet E-10nin 2019. Learnings from those vehicles helped inform Chevrolet’s Electric Connect and Cruise strategy. Chevrolet Performance is also evaluating additional eCrate packages with higher-performance options and new battery configurations to fit a wider range of aftermarket applications. Longer term, the team will work to integrate GM’s modular Ultium Battery System.
“Minutes after Chevrolet showed the E-10 concept, customers started calling to ask how soon they could build their EV project,” said Russ O’Blenes, Chevrolet director of engineering, Performance and Racing. “The K5 Blazer-E demonstrates what is possible for customers who want to convert their vintage truck to a daily driver with the instant torque and unique driving experience of an EV. For customers who want more extreme performance, the modular eCrate system will have virtually limitless applications.”