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Discussion Forum

620 JD powerblock ?

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Dave Houghton

10-18-2002 08:07:20




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Did they make a power block for a 620 ? If you sleeve the current block can you put 720 pistons in? We are looking for a setup to put in the 620. We need to run pump gas. We are thinking of puting in lp pistons .125 over.




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JDGnut

10-19-2002 08:23:01




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 Re: 620 JD powerblock ? in reply to Dave Houghton, 10-18-2002 08:07:20  
Like Drew said.. there is no PowerBlock for the 620/630.. Instead of sleeving the block to the 720/730 pistons, you would be better off spending your money on the crank.. .125 LP pistons will help the compression and HP.. a little more than the LP pistons and you will not be able to run pump gas. I like the idea of trying the 60PB.. never tried it.. or seen it done.. (probably easier to have the block sleeved.) JDGnut

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Drew

10-18-2002 10:22:53




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 Re: 620 JD powerblock ? in reply to Dave Houghton, 10-18-2002 08:07:20  
There is not a 620 powerblock. I have thought though with some jerry-rigging that a 6"-3 A/60 P. Block might go. Some bolt holes might have to me moved a little and you would have to use a 60 head. I guess it depends on how creative you want to get. I dont know if the bore centers are the same or not,which would pose another problem. Dont know if it would work or not, but it is an interesting idea none the less.

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