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630 block spec

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David Stiles

10-03-2002 20:07:18




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does any one know what the 630 block should be exactaly reason for asking found a replacemant block for my 630 and it looks to have never been bolted up to a tractor and was wondering what the spec were so I could have it check for being standerd bore I know it is A 5.5 in bore but need exact mic spec if any one has them thank you . also what clearance on pistons thank you
David STiles




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G-MAN

10-04-2002 09:32:23




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 Re: 630 block spec in reply to David Stiles, 10-03-2002 20:07:18  
David, I don't have access to a 630 book here, but the 60 service manual (also 5.5 inch bore) shows bore measurements of 5.4496" to 5.5010" in new bores. Piston to bore clearance is shown as .005" to .008", but from what I've read on this site, that clearance is usually increased somewhat when running aluminum replacement pistons, as they expand more than the stock cast iron units. Hopefully this info will be of some help to you.

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David Stiles

10-05-2002 19:35:06




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 Re: Re: 630 block spec in reply to G-MAN, 10-04-2002 09:32:23  
thank for the input on the block spec i got lucky it was a nos block clean out the kosmoline and it had never had a piston in the block

thank you for the feed back
David Stiles



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