2021 Jeep Wrangler Unlimited Rubicon 392 Review | TeraFlex Video
It's here, and it's marvelous!
Legendary off-road capability with impressive power and torque, the 392 is sure to bring a smile to your face.
They said it couldn’t be done — at least from the factory. While many aftermarket companies have shoehorned the HEMI V-8 (as well as GM LS V8 engines) under the hood of manyJeep Wrangler/Wrangler models, rumors suggested the eight-cylinder engine was too long to work with the crumple zones to meet federal crash test standards.
Jeep has done what many thought was impossible: say hello to the 2021 Jeep Wrangler Unlimited Rubicon 392 powered by a 6.4-liter HEMI V-8 mated to a TorqueFlite 8-speed automatic transmission and Selec-Trac full-time active transfer case. In JL Wrangler duty, the 6.4-liter makes 470 hp and 470 lb-ft of torque. Jeep claims the Wrangler Unlimited Rubicon 392 can reach 60 mph in 4.5 seconds and clear the quarter-mile in 13.0 seconds.
Other factory features include heavy-duty wide track Dana 44 axles with a 3.73 final drive ratio and Tru-Lok electronic locking differentials, transmission torque converter lockup control, a 2” lift and standard 33” tires on 17” beadlock-capable wheels.
With a total 10.3 inches of ground clearance, an approach angle of 44.5 degrees, a breakover angle of 22.6 degrees, and a departure angle of 37.5 degrees, and can traverse up to 32.5” of standing water, Jeep claims the JL Rubicon 392 is the most capable Jeep ever.
Watch Dennis Wood drag race the Rubicon 392 against whatever he can find in the TeraFlex parking lot as well as a more in-depth look at the V-8-powered rig’s unique features beyond its drivetrain spec chart:
Check out all our TeraFlex Suspensions Lifts, Off-Road Performance Parts, and Jeep Accessories HERE!
— Words by Jason Udy