Cam card for Mopar Purple shaft 284 cam p4120653

MP purples were outsourced: made by whomever could "fill the bill" so the 'part' numbers on 2 284/484 cams could be totally different as they were likely vendor numbers. I found duration by degrees between .050 lift and then same lift on the downside, then dividing by 2. Youll always get the same number no matter what number you use: .006, .050, etc.

A 284/.484 is more like a 241 at .050. That hydro was pretty mild in my 340. Not real choppy.

Mopar Performance P4120231AE Details
Small Block (Hydraulic)

Duration at .050'': 241°/241