The ZJ Grand (1993-1998) was originally released with the 4.0 and that continued all the way to the end of the next Grand series (WJ, 1999-2004) the 5.2 V8 was available in the ZJ from 1993 on up. The main difference was the V8 had a lot more torque. The 4.0 towed my 20' boat OK, but my '07 WK...