Under the hood, this Chevy C30 runs on a 24-valve Cummins diesel engine, which features a Banks turbo setup and a four-inch exhaust system. Output is rated at around 300 horsepower and 550 pound ...

Forget everything you knew about the Chevy C30 Dually ... They swapped in a rebuilt 24-valve Cummins diesel power plant that produces around 260 horsepower and 350 pound-feet of torque.

Vehicles that are equipped with the Allison 1000 series transmission include the Chevy Colorado ... ATS Diesel sells complete conversion kits to enable a Cummins/Allison combination.