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    Looking for advice on a 1980 CB750F engine I'm beefing up.

    I've only just started disassembling the head. I plan to smooth out the casting both inside and out as best I can. After that it's just the valves and guides that I haven't replaced. Looking at the block it doesn't seem like I could gain more than 2 or so millimeters in size if I go bigger, the...
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    Looking for advice on a 1980 CB750F engine I'm beefing up.

    Hello! I'm trying to see if anyone has recommendations on beefing up a CB750F DOHC engine. I'm having my engine overbored to 890cc's with Wiseco pistons and new sleeves. The crank is being balanced and has custom made Carrillo connecting rods to replace the originals. The valve springs...
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