Prestige Motorsports offers several built engines from their company in Concord, North Carolina. One of their biggest displacement crate motors is a 572 ci (9.4L) Gen2 big-block HEMI V8. The motor is based on the 426 ci (6.98L) HEMI and if offered with an iron or aluminum block with a 4.50-inch bore and 4.50-inch stroke. Inside is a forged steel crank, forged H-beam rods, custom forged pistons, and solid roller camshaft. Jalopnik reports motor produces 700+ hp (514+ kW) and 686 lb-ft (930 Nm) of torque on 91 octane fuel. They also report the motor costs $30,999.
Source: Prestige Motorsports FB page and Jalopnik