cams main rod bearings the alecular material used in lunati ... bearings allows a high degree of conformability ... over other race bearings whether you use steel or aluminum rods ... is four times greater than other bearings plus they will not flake the fatigue ... is held 0001 making lunati bearings an excellent choice for road racing ... oval track and drag racing rod and mainbearings are available 001 009 -010 -011 std ... 001 019 020 021 and 030 and rod bearings are available with or without dowel pin ... consultant for over or undersized bearings lunati alecular racing bearings are ... w dowel hole sbc 2.000 pin 2.100 rod spacerbearing part cr869hp mb5142hp mb5143hp ... ford 302 width chevy diameter sbc 350 main set 1/2 groove sbc 400 main set 1/2 ... groove bbc 2.750 main set 1/2 groove sbc 350 main set full ...