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ACnightmare
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Joined: 04 Mar 2012
Posts: 11
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 Posted: Mon Oct 29, 2012 9:58 am Post subject: Farmall 450 bore |
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I have a Farmall 450 block. What is the largest bore that can be done? Would like to run high RPMs without having to change stroke, but will if need be.What are some suggestions?
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Dblair
Tractor Expert
Joined: 07 Nov 2007
Posts: 1790
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| Posted: Mon Oct 29, 2012 3:07 pm Post subject: Re: Farmall 450 bore |
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buy a rotating assembly from Murphy's motor service for a 4.310 by 6.75 . no grinding and run 1900 rpm forever at about 120 hp.
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big time farmall
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Joined: 03 Oct 2012
Posts: 12
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| Posted: Mon Oct 29, 2012 5:58 pm Post subject: Re: Farmall 450 bore |
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Have you done a Murphy's motor at 6.75" of stroke? Just wondering about the "zero grinding". When I asked Jeff about zero grinding at 6.75", he said that he couldn't guarantee there wouldnt be some grinding required.
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Dirt Slinger
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Joined: 25 Apr 2011
Posts: 87
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| Posted: Tue Oct 30, 2012 1:54 am Post subject: Re: Farmall 450 bore |
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I have a short block that size for sale. If your interested.
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baldwin racing
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Joined: 17 Jun 2011
Posts: 318
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| Posted: Sun Nov 04, 2012 7:47 am Post subject: Re: Farmall 450 bore |
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you can go to 4 3/8 bore no sleeves....if you drop a little 6 inch stroker you would be at 360ci no ginding and can use stock rods
kelly
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ACnightmare
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Joined: 04 Mar 2012
Posts: 11
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| Posted: Sun Nov 11, 2012 5:55 pm Post subject: Re: Farmall 450 bore |
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Sorry for not getting back to you sooner. How much are you asking for the short block? Who is the motor builder if there is one?
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