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Discussion Starter · #1 ·
Hi guys,
Im new to the forum. I havent posted much. Im in a situation that needs an answer. I tried the "search" button and google with no answer.

I have 2 Rb30 projects going on for my Kr4 R33 (3.2l 90mm stroke twin 2871-10s) and the "other" motor.
I have an rb30det which i purchased sight unseen (fail on my part.) it came with the block and girdle. The motor spun a bearing and damaged the crank girdle and block. The block has such minimal damage, a good tunnel bore will make everything perfect. The girdle took all athe damage and is about as useful as "Tits on a bull."
So my question is this: are the rb25 and rb30 crank girdles the same part number? Are they interchangeble?
Id really like to get this a replacement girdle so I can get everthing tunnel bored and get this into my r34 asap.

Thank you in advance. Any advice will help,
J
 

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Skyline Section Manager
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11,878 Posts
The girdles are honed in place. You can make your own or get them machined and inline honed. You should not swap them from block to block.
 
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