there will be 5 numbers and 4 letters on the crank. the letters corespond to the rods and the numbers corespond to the letters on the block. match them up and then you'll get the size bearing that is called for. before FINAL assembly plastigauge all the bearings. honda has the bearing clearence's set pretty tight. .020 is getting on the loose side. you should shoot for between .015 and .020. for BOTH the rods and the mains. and remember the $150 oil pump is the only thing that will save bearings. so don't skimp in that department. also there should be little to no drag on the crank when JUST the mains are bolted down and lubed up. when you install the pistons and rods there WILL be some drag from the rings. but it should NEVER be a struggle to turn it over with a wrench(on the crank pulley bolt). I hope this helps.