Quote: I looked at about 20 of my cores today...in parts cars and on the rack.All the A Body six bangers are smooth.V-8s and 6 B's with manual have the rib.
Pretty much what I found with mine.
72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, . Moparmarks Parts & Restorations Desert Mopar Metal Grand Jct. CO 970-261-7039 http://moparmark.com/ motormangj@gmail.com