B18C7 into GSi

[rc_]

Fellas I'm at the stage of looking at big end an main bearings. Honda mentions something about colour coding.

Does anyone know what this is about? Is that sizing or placement on the crank?

Unless you are buying oem bearings you won't get the same tolerances of bearings.

Your builder should measure the clearances for you but essentially aftermarket ie ACL only come in standard or extra clearance for race application (can't remember what they call this exactly). Honda bearings come in different grades to keep tighter tolerance on clearances. It is marked on the case and crank, you can only see this after disassembly.

Go buy one of these, it will answer pretty much all your questions and guide you through the build process.

https://www.ebay.com.au/itm/360604443521