i have wanted to rollerize the crank in an SBC even since i read about the process toyota used all the way back in the 70's to rollerize some of their racing stuff. they also had lite weight cranks to go along with it of course and oiling was modified since rollers don't need as much sauce to keep cool and happy.
they used caged, needle style rollers. i think the theaory of it's effectiveness could be tested by machining down a crank to accept the rollers and do low rpm testing. big bearings and a full bearing surface crank woudl obviously be wanted to really buzz the thing though.
