New Crankshaft
Usually a 3.895" stroke crank (often from a 258ci AMC engine or aftermarket forged)
New Forged Connecting Rods
Often 4340 forged steel, balanced for high strength
Length: Typically 6.125"
Forged or Hypereutectic Pistons
Custom dish or flat-top pistons to achieve proper compression ratio
Main Bearings & Rod Bearings
Piston Rings
Camshaft (optional)
Often an aftermarket cam optimized for torque
Timing Set (optional)
Double roller timing chain recommended for durability
Increased displacement = more torque and horsepower
Stronger components = more reliable under load or boost
Great for trail rigs, rock crawlers, or daily drivers wanting better performance
Jeep Cherokee XJ (1996–1998)
Jeep Grand Cherokee ZJ (1996–1998)
Jeep Wrangler TJ (1997–1998)
888-364-4537
352-840-0501