The 392 HEMI 6.4L V8 paired with a TR6060 6-speed manual transmission is an excellent high-performance drivetrain package for a serious muscle car or restomod project.

The 392 HEMI produces approximately 485 HP and 475 LB-FT of torque in its naturally aspirated factory 485-hp configuration. Peak horsepower occurs around 6,100 RPM, with peak torque around 4,200 RPM. Exact output depends on the engine version, calibration, and exhaust setup.

The package includes the engine, TR6060 6-speed manual transmission, wiring harness, programmed computer, ECU, electronic accelerator pedal, and shifter assembly. Together, these components provide the foundation for a modern electronic engine installation with precise throttle control and engaging manual shifting.

Fuel efficiency will depend on vehicle weight, gearing, rear-end ratio, and driving style. Expect approximately 14–20 MPG in a properly configured street vehicle, although aggressive driving will reduce mileage considerably.