The engine specs according to jeep

 

 

Engine 4.0L Power Tech I-6
 

Horsepower @ rpm

 

181 @ 4,600

 

Torque, lb-ft @ rpm

 

222 @ 2,800

 

Displacement, cu in (cc)

 

242 (3,958)

 

Bore x Stroke, in (mm)

 

3.88 x 3.41
(98.4 x 86.7)

 

Compression Ratio

 

8.8:1

 

Fuel System

 

Sequential multipoint electronic fuel injection