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I am planning a build using an RB26 head and stock non-turbo RB30 bottom end.. I am aiming for 550-600bhp at the end of the day and gather this is about the max for the stock block.

Any way in order to keep cost down and maybe get a bit more life and reliability out of the bottom end I have been picking up ideas from other build threads and my own knowledge. What are the opinions of polishing the stock rods to remove casting marks and potential stress raisers. Is it worht the effort? If money was no object I would buy forged ones but looking at this as an alternative bearing in mind my aim at the end of the day?

tips and opinions please!

Thank you

Lee

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