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line bore

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Vehicle Information: Model: 911/928; Year: 1970; Body Type: Coupe; Engine (type, size, modifications): nil; Total Mileage: lots;

I am realy interested to know what a standard line bore is (how is it possible to line bore back to standard)I appreciate your help to other 911 owners but I dont think this is possible without first machining both case halfes I am currently doing this on a 928s and to get back to std. am machining block and lower bearing section to remove enough material so as to be able to return to standard size. I know this is not a forum but I wouldn't sand any thing and would send it to a reputable engineering shop machine both sides of the case and then send it to a motor shop and have it line bored Thanks for the help you have given me Jim Taylor N.Z.911 owner

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