MRL Roller Lifter Street Durability
The 60331 is what I had Mike put in mine when he built it. If your interested here's the thread
http://www.forabodiesonly.com/mopar/showthread.php?t=286851
Haven't heard it run yet, but I'm getting close to being able to start and move the car for the first time since I bought it 4 years ago. Bought it as a roller.