my 48 r block has stepped bearings ,my new cam is not stepped seems to fit in the front nice the new cam is 21 = 1.9985 2" SB Mopar "R" Babbit

1.37 60 ft [email]6.0@113[/email] [email]9.57@141[/email] 408 glide 3550lbs
new video http://www.youtube.com/watch?feature=player_embedded&v=Xvq3ZObywQE