George Buick Riviera Posted May 12, 2019 Share Posted May 12, 2019 Hi, can you please help to ID the 455 crankshaft main bearing size. Are those nominal size ? Or ? I was googling for the visible numbers, but no luck for me .... The numbers are stamped on the same single bearing. Thanks for any info. Link to comment Share on other sites More sharing options...
DualQuadDave Posted May 12, 2019 Share Posted May 12, 2019 those should be standard size. Oversize will be marked .010 or similar. Mic the journals, regardless. 455's are clearance specific, get it right the first time. Good luck! 1 Link to comment Share on other sites More sharing options...
George Buick Riviera Posted May 13, 2019 Author Share Posted May 13, 2019 9 hours ago, DualQuadDave said: those should be standard size. Oversize will be marked .010 or similar. Mic the journals, regardless. 455's are clearance specific, get it right the first time. Good luck! I was thinking so - yes I will mic the shaft. Thank you Dave. Looks like the whole engine is still from the factory - i haven't seen the front crankshaft seal rope type for a while ! Link to comment Share on other sites More sharing options...
DualQuadDave Posted May 13, 2019 Share Posted May 13, 2019 Anytime you find factory bearings these days is a good thing. Make sure you read up on the oiling mods and everything else needed for a 455. They make good power, but you have to fix a ton of factory mistakes in them. 1 Link to comment Share on other sites More sharing options...
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