That was in the 4th gen. But back in the day Z-28 was the ref. code on the order sheet to list the most bad to the bones muscle in the arsenal. Believe me,the Z with the MO,or DZ302 WAS YOUR OPPONENTS WORSE NIGHTMARE. Back in the day,the 302 Z,s would smoke the big block SS,s at the drags day in and day out.The Z would leave hard and fast,always beat the SS,s out of the hole.At the drags,the SS would always run out of track before it could run down the Z. Ah,those were the days.