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Eric; Can you please mesure the thickness of the washers and the thickness of your 608zz & 623zz bearings? I got the crank assamblet, but when i test fit it to the block it just won't fit at all. I think its because of either the thickness of the washers (mine are 1mm thick) or wrong thickness of my 623zz bearings (4mm). That gives me a total spacing of 14mm between each crank counter weight. I also got 10mm of thickness, where the main bearings sit.