Forum » General Engine Building Discussion » How do i know that the machine shop sleeved my engine correctly?

How do i know that the machine shop sleeved my engine correctly?

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Hey guys, I'm new when it comes to engine building, so I heard the b20b Honda engine needs sleeves if you plan on going big on boost because the sleeves tend to crack. I bought some Darton MID sleeves 84mm for my little engine. So my question is how do I know that the machine shop installed them correctly, and what are some checks I need to do before taking back my engine? This is also the picture the machine shop sent me.

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Unless you have the tools the machine shop has to measure, you have to trust them. If you really want a second opinion, take it to a different machine shop and ask them to measure cylinders to make sure they are within spec (bore-bore spacing, parallelism, deck height, bore: diameter, roundness, taper).