the quest for 640 February 23, 2011 09:24AM
how do the ih and john deere guys with the 466 engines get it up to 640. i know they bore but can only bore so much, what do they do? im a builder hoping to get started on a project soon.

Re: the quest for 640 February 23, 2011 10:38AM
increase the stroke on the crankshaft,very common to do this..

Re: the quest for 640 February 23, 2011 11:05AM
but isnt that quite expensive? are only only options other than that to stay around 600?

Re: the quest for 640 February 23, 2011 11:42AM
If you think thats expensive ,wait till you get to the all the other expensive parts.

Re: the quest for 640 February 23, 2011 12:04PM
that is true hahaha what tractors, other than the jd's and ih's are best fit to run sf?

Re: the quest for 640 February 23, 2011 04:29PM
a case will get 640 ,with the standard work.even tho im a case guy,the heads are not the best..id give up some cubes for a better head..

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