Chrysler’s Mopar is offering what they have left of the old Viper’s V10 powertrains as 800-hp Competition Series engines.

These hand-assembled units are designed specifically for drag racing with 695 lb. ft. of torque with an operating range of up to 7,000 rpm. They feature an aluminum block with aluminum cylinder heads, as well as a forged steel crankshaft with forged steel connecting rods and forged aluminum pistons with a compression ratio of 12.5:1.

The Competition Series engine includes a JTEC controller with race calibration and engine harness. Designed specifically for drag racing, future applications include an off-road and road-race version.

If you own a Gen III Viper, Mopar is also offering you the chance to extract 150 more horses from its engine with the Performance Upgrade Kit, part number P5156137. Each kit includes a pair of aluminum cylinder heads (machined to fit the Gen III block), a custom upper intake manifold with a larger throttle body, fuel rails and injectors. The stock engine controller will have to be re-flashed. It will result in a total 650 hp output.