Measuring Cyl Bores

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Should the caps+girdle be installed when measuring the bores? If so, can the block be supported at the ends with blocks of wood (as opposed to a stand), without distorting the readings? Thanks.
 
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 Originally Posted By: Eddie
A block is a very ridged structure.
Oh, if only that were true, it would make life so much easier. "Rigid" is a relative term, at least relating to engines.
 
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Don't take this the wrong way but your inexperienced measuring techniques and the block's temperature are going to have a greater effect on bore measurement than bolting the main caps on.
 
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In this case it might not make a big difference in measurement if the mains are on and torqued or not. It is a very good habit to have everything torqued to spec before measuring and machining. Not all blocks distort in the same way. I have seen some 4 bolt V8s distort the lower bores severely when the mains are torqued down. Some inline 4s don't care.
 
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